Wide-Detector CT for TAVR Planning:
|
|
- Alyson Lindsey
- 6 years ago
- Views:
Transcription
1 Wide-Detector CT for TAVR Planning: Impact on Iodine Dose, Radiation Dose, and Image Quality SCBTMR 2015 Annual Course Thursday, October 8 William P. Shuman MD FSCBTMR Department of Radiology University of Washington, Seattle
2 Disclosures WPS administers research grants from GE Healthcare which support clinical CT research
3 Wide Detector Technology 16 cm detector with focally aligned detector modules Post patient collimator
4 Detector Technology 16 cm Wide-Detector
5 Mitigating Wide Coverage Issues cone beam Focally aligned detector modules designed for cone beam geometry VHD reconstruction reduces Hounsfield unit uniformity variation across 160 mm z-axis coverage
6 Post-Patient Collimator
7
8 Wide Detector Technology Axial step-and-shoot technique with 16 cm slabs No helical artifacts Stitching reconstruction of anatomical structures to control or eliminate step-off artifacts
9
10 Wide Detector Technology Faster rotation time (0.28 sec) Better ACTM and auto-kvp Partial model-based iterative reconstruction (ASIR-V)
11
12
13 TAVR Transcutaneous Aortic Valve Replacement Patients with severe calcific AS and AI who are not operative candidates due to co-morbidities Femoral, transapical,or trans axillary approaches Implanted ring/valve overlies native valve, displacing leaflets
14 TAVR Transcutaneous Aortic Valve Replacement Patients with severe calcific AS and AI who are not operative candidates due to co-morbidities Femoral, transapical, or trans axillary approaches Implanted ring/valve overlies native valve, displacing leaflets
15
16
17
18
19
20
21
22
23
24
25 Background Wide-detector CT is faster, enabling scanning of chestabdomen-pelvis as a single acquisition with one bolus of contrast Wide Detector CT also has new radiation dose reduction features
26 Purpose To compare an older clinical standard TAVR planning protocl on a 4 cm detector CT with a new clinical standard protocol on a 16 cm wide-detector CT for: Iodine dose utilized Radiation dose Subjective and objective image quality
27 Methods IRB approved retrospective study December 2014 January 2015 Large urban academic medical center
28 Methods Patients Reviewed 36 consecutive patients scanned for TAVR planning on wide-detector Carefully match for gender, age, and BMI to 36 patients previously scanned for TAVR planning on 4 cm detector
29 Methods Wide-detector Protocol 1 Continuous scanning of ECG gate chest and non-gated abdomen-pelvis cm slabs in the chest, cm slabs in the abdomen-pelvis Scan duration: seconds
30 Methods Wide-detector Protocol 1 NI = 30 for chest, 18 for abd/pel, kvp = rotation 0.28 or 0.35 sec Contrast: cc at 3-5 cc/sec base on Z axis Injection duration 5 sec longer than scan duration Reconstructed with ASIR-V 70%
31 Methods Standard 4cm Detector Protocol 2 Separate acquisitions of the chest (helical ECG gated) and of the abdomen/pelvis (helical non-gated) 30 second pause between the two acquisitions Scan duration: 47 seconds
32 Methods Standard 4 cm detector Protocol 2 NI = 50 for chest, 30 for abd/pel, kvp = rotation time = 0.35 or 0.5 sec Contrast: cc at 4 cc/sec Reconstructed with 70% ASIR
33
34 Methods Images reconstructed: Axial 2.5 mm of the chest, abdomen, and pelvis mm double oblique of aortic valve mm magnified - with measurements of annulus, leaflet length, and coronary ostia distances.
35 Protocol 1 Protocol 2 A B C D
36 Methods Image Evaluation by 2 independent Reviewers (subjective 4 point Likert scales): aortic enhancement overall image quality for non-vascular structures image quality of aortic annulus
37 Methods Objective Measurements: HU vascular attenuation at 8 locations in aorta and iliofemorals Psoas HU and Image Noise in air Calculated SNR, CNR
38 Results Demographics No difference in age, gender, or BMI
39
40 Results Wide detector scanner acquisition time averaged 32 seconds less than 4 cm detector scanner
41 Results Wide detector scanner iodine dose averaged 33% less than standard 4 cm detector scanner
42 Results Wide detector scanner radiation dose in SSDE was 28 45% lower than standard 4cm detector scanner 53% reduction in total exam DLP with no statistical difference in scan range (mm)
43 Results Wide detector scanner mean vascular HU attenuation was statistically greater overall and was greater at each of the 8 measurement levels than standard 4cm detector scanner
44
45 Results Image noise, SNR, and CNR were the same for both scanners
46
47 Results Subjective scores for vascular enhancement and overall image quality were the same Subjective image quality scores for the magnified aortic root measurement images were statistically better for the wide detector scanner
48
49 Discussion Wide detector scanner features: Axial step-and-shoot technique No helical artifacts Whole heart in one beat Effective Stitching = no step-off artifacts
50 Discussion Wide detector scanner features: Focally aligned detector modules Less cone beam artifact Better dose efficiency
51 Discussion Wide detector scanner features: Three dimensional post-patient collimator Eliminates scatter radiation Less image noise
52 Discussion Wide detector scanner features: Faster rotation time 0.28 sec Better temporal resolution
53 Discussion Wide detector scanner features: Faster overall scan acquisition time Transition from ECG gated to ungated shortened from 30 secs. down to 5 secs. Enables single contrast bolus technique
54 Discussion Wide detector scanner features: ASIR-V reconstruction Partial model based iterative recon. 30% lower noise than statistical iterative recon Supports reduced radiation technique Similar reconstruction time
55 Conclusion Wide detector axial step-and-shoot TAVR planning CT resulted in: Greater vascular attenuation Similar subjective and objective image noise Lower radiation dose Less iodine dose
56
Pitfalls and Remedies of MDCT Scanners as Quantitative Instruments
intensity m(e) m (/cm) 000 00 0 0. 0 50 0 50 Pitfalls and Remedies of MDCT Scanners as Jiang Hsieh, PhD GE Healthcare Technology University of Wisconsin-Madison Root-Causes of CT Number Inaccuracies Nature
More information12/21/2016. Siemens Medical Systems Research Agreement Philips Healthcare Research Agreement AAN and ASN Committees
Joseph V. Fritz, PhD Nandor Pintor, MD Dent Neurologic Institute ASN 2017 Friday, January 20, 2017 Siemens Medical Systems Research Agreement Philips Healthcare Research Agreement AAN and ASN Committees
More informationSoftware and Hardware in CCTA. Elly Castellano PhD
Software and Hardware in CCTA Elly Castellano PhD Outline technical requirements for coronary CTA the modern cardiac CT scanner ECG-gating technology image reconstruction algorithms 2 Technical requirements
More informationHISTORY. CT Physics with an Emphasis on Application in Thoracic and Cardiac Imaging SUNDAY. Shawn D. Teague, MD
CT Physics with an Emphasis on Application in Thoracic and Cardiac Imaging Shawn D. Teague, MD DISCLOSURES 3DR- advisory committee CT PHYSICS WITH AN EMPHASIS ON APPLICATION IN THORACIC AND CARDIAC IMAGING
More informationResearch Support. Dual-Source CT: What is it and How Do I Test it? Cynthia H. McCollough, Ph.D.
Dual-Source CT: What is it and How Do I Test it? Cynthia H. McCollough, Ph.D. CT Clinical Innovation Center Department of Radiology Mayo Clinic College of Medicine Rochester, MN Research Support National
More informationDetector technology in simultaneous spectral imaging
Computed tomography Detector technology in simultaneous spectral imaging Philips IQon Spectral CT Z. Romman, I. Uman, Y. Yagil, D. Finzi, N. Wainer, D. Milstein; Philips Healthcare While CT has become
More informationTOPICS: CT Protocol Optimization over the Range of Patient Age & Size and for Different CT Scanner Types: Recommendations & Misconceptions
CT Protocol Optimization over the Range of Patient Age & Size and for Different CT Scanner Types: Recommendations & Misconceptions TOPICS: Computed Tomography Quick Overview CT Dosimetry Effects of CT
More information1. Patient size AEC. Large Patient High ma. Small Patient Low ma
Comparison of the function and performance of CT AEC systems CTUG meeting by Emily Field Trainee clinical scientist 14 th th Breakdown CT Automatic Exposure Control (AEC) Background Project Description
More informationAutomated dose control in multi-slice CT. Nicholas Keat Formerly ImPACT, St George's Hospital, London
Automated dose control in multi-slice CT Nicholas Keat Formerly ImPACT, St George's Hospital, London Introduction to presentation CT contributes ~50+ % of all medical radiation dose Ideally all patients
More informationCOMPUTED TOMOGRAPHY 1
COMPUTED TOMOGRAPHY 1 Why CT? Conventional X ray picture of a chest 2 Introduction Why CT? In a normal X-ray picture, most soft tissue doesn't show up clearly. To focus in on organs, or to examine the
More informationBreast Tomosynthesis. Bob Liu, Ph.D. Department of Radiology Massachusetts General Hospital And Harvard Medical School
Breast Tomosynthesis Bob Liu, Ph.D. Department of Radiology Massachusetts General Hospital And Harvard Medical School Outline Physics aspects of breast tomosynthesis Quality control of breast tomosynthesis
More informationIterative Reconstruction in Image Space. Answers for life.
Iterative Reconstruction in Image Space Answers for life. Iterative Reconstruction in Image Space * (IRIS) * Please note: IRIS is used as an abbreviation for Iterative Reconstruction in Image Space throughout
More information160-slice CT SCANNER / New Standard for the Future
TECHNOLOGY HISTORY For over 130 years, Toshiba has been a world leader in developing technology to improve the quality of life. Our 50,000 global patents demonstrate a long, rich history of leading innovation.
More informationIterative Reconstruction
RECENT ADVANCES IN CT RADIATION DOSE REDUCTION TECHNIQUES Iterative Reconstruction Kalpana Kanal, PhD, FSCBTMR, FACR, FAAPM Professor and Director, Diagnostic Physics Section University of Washington Seattle,
More informationAuthors: Cabral, Ricardo 1 ; Carvoeiras, Pedro 2 ; Fatana, João 2, ; Alves, Rita 1. 1 Centro Hospitalar Lisboa Norte - Hospital de Santa Maria; 2
Authors: Cabral, Ricardo 1 ; Carvoeiras, Pedro 2 ; Fatana, João 2, ; Alves, Rita 1. 1 Centro Hospitalar Lisboa Norte - Hospital de Santa Maria; 2 Medical Consult, SA; Establish a method to correlate image
More informationPET: New Technologies & Applications, Including Oncology
PET: New Technologies & Applications, Including Oncology, PhD, FIEEE Imaging Research Laboratory Department of Radiology University of Washington, Seattle, WA Disclosures Research Contract, GE Healthcare
More informationdiagnostic examination
RADIOLOGICAL PHYSICS 2011 Raphex diagnostic examination Adel A. Mustafa, Ph.D., Editor PUBLISHED FOR: RAMPS (Radiological and Medical Physics Society of New York) preface The RAPHEX Diagnostic exam 2011
More informationRedefining Ergonomics
Samsung Electronics Co., Ltd. inspires the world and shapes the future with transformative ideas and technologies, redefining the worlds of TVs, smartphones, wearable devices, tablets, cameras, digital
More information1. Queries are issued to the image archive for information about computed tomographic (CT)
Appendix E1 Exposure Extraction Method examinations. 1. Queries are issued to the image archive for information about computed tomographic (CT) 2. Potential dose report screen captures (hereafter, dose
More informationTORNIER BLUEPRINT. 3D Planning + PSI SCAN PROTOCOL
TORNIER BLUEPRINT 3D Planning + PSI SCAN PROTOCOL Contents 3 Introduction 3 Patient preparation 3 Scanning instructions 4 Image instructions 5 Scanning parameters 6 Technical instructions 2 BLUEPRINT 3D
More informationComputed Tomography. The Fundamentals of... THE FUNDAMENTALS OF... Jason H. Launders, MSc. Current Technology
The Fundamentals of... Computed Tomography Computed Tomography (CT) systems use x-rays to produce images of slices through a patient s anatomy. Despite having lower spatial resolution than other x-ray
More informationX-RAYS - NO UNAUTHORISED ENTRY
Licencing of premises Premises Refer Guidelines A radiation warning sign and warning notice, X-RAYS - NO UNAUTHORISED ENTRY must be displayed at all entrances leading to the rooms where x-ray units are
More informationPET/CT Instrumentation Basics
/ Instrumentation Basics 1. Motivations for / imaging 2. What is a / Scanner 3. Typical Protocols 4. Attenuation Correction 5. Problems and Challenges with / 6. Examples Motivations for / Imaging Desire
More informationModel Based Iterative Reconstructions represent a paradigm shift - Imaging with almost no noise
Model Based Iterative Reconstructions represent a paradigm shift - Imaging with almost no noise Jonas Rydberg, M.D. Professor of Radiology Indiana University School of Medicine Indianapolis, Indiana Medical
More informationSlide 1. Slide 2. Slide 3 ACR CT Accreditation. Multi-Slice CT Artifacts and Quality Control. What are the rules or recommendations for CT QC?
Slide 1 Multi-Slice CT Artifacts and Quality Control Dianna Cody, Ph.D. Chief, Radiologic Physics UT MD Anderson Cancer Center Houston, TX Slide 2 What are the rules or recommendations for CT QC? AAPM
More informationCT Basics: Image Quality Module 6
Module 6 For educational and institutional use. This transcript is licensed for noncommercial, educational inhouse or online educational course use only in educational and corporate institutions. Any broadcast,
More information7/24/2014. Image Quality for the Radiation Oncology Physicist: Review of the Fundamentals and Implementation. Disclosures. Outline
Image Quality for the Radiation Oncology Physicist: Review of the Fundamentals and Implementation Image Quality Review I: Basics and Image Quality TH-A-16A-1 Thursday 7:30AM - 9:30AM Room: 16A J. Anthony
More informationDose Reduction in Helical CT: Dynamically Adjustable z-axis X-Ray Beam Collimation
Medical Physics and Informatics Original Research Christner et al. CT Dose Reduction Medical Physics and Informatics Original Research Downloaded from www.ajronline.org by 8.243.133.8 on 2/26/18 from IP
More informationmake it easy, with Ray
Lower dose - Quick scan times - Pulsed X-ray technology - Multiple scan modes 3 Dedicated detectors - Reliable performance - No damage - Long life span Easy upgrade - Ready to upgrade CBCT & Cephalometric
More informationMaximum Performance, Minimum Space
TECHNOLOGY HISTORY For over 130 years, Toshiba has been a world leader in developing technology to improve the quality of life. Our 50,000 global patents demonstrate a long, rich history of leading innovation.
More informationDiagnostic X-Ray Shielding
Diagnostic X-Ray Shielding Multi-Slice CT Scanners Using NCRP 147 Methodology Melissa C. Martin, M.S., FAAPM, FACR Therapy Physics Inc., Bellflower, CA AAPM Annual Meeting, Orlando, FL FL Refresher Course
More informationInfluence of different iteration levels in fourth generation iterative reconstruction technique on image noise in CT examinations of the neck
Influence of different iteration levels in fourth generation iterative reconstruction technique on image noise in CT examinations of the neck Poster No.: C-2205 Congress: ECR 2012 Type: Scientific Paper
More informationof sufficient quality and quantity
of sufficient quality and quantity The patient s body attenuates the beam as it passes though the body More energy is deposited in organs located near the entry of the beam than near the exit of the beam
More informationOverview of Safety Code 35
Common Quality Control Procedures for All s Quality Control Procedures Film All s Daily Quality Control Tests Equipment Warm-up (D1) According to manufacturers instructions Can include auto calibration(d1)
More informationAim. Images for this section: Page 2 of 13
Changes in CT number of high atomic number materials with field of view when using an extended CT number to electron density curve and a metal artifact reduction reconstruction algorithm Poster No.: R-0094
More informationQC by the MPE in Belgium
Acceptance testing of state-of-the-art CT scanners using a new national protocol: first experience on a large number of scanners of different make and model the working group Radiology of the Belgian Hospital
More informationDigital Imaging started in the 1972 with Digital subtraction angiography Clinical digital imaging was employed from the 1980 ~ 37 years ago Amount of
Digital Imaging started in the 1972 with Digital subtraction angiography Clinical digital imaging was employed from the 1980 ~ 37 years ago Amount of radiation to the population due to Medical Imaging
More informationSAFIRE. Sinogram Affirmed Iterative Reconstruction. Answers for life.
Neuro Thoracic Abdominal Abdominal Cardiovascular Pediatric SAFIRE Sinogram Affirmed Iterative Reconstruction Answers for life. SAFIRE * (Sinogram Affirmed Iterative Reconstruction) * The information
More informationMaximizing clinical outcomes
Maximizing clinical outcomes Digital Tomosynthesis Dual Energy Subtraction Automated Long Length Imaging Improved image quality at a low dose Xray Xray Patented ISS capture technology promotes high sensitivity
More informationImage Quality and Dose. Image Quality and Dose. Image Quality and Dose Issues in MSCT. Scanner parameters affecting IQ and Dose
Image Quality and Dose Issues in MSCT Image Quality and Dose Image quality Image noise Spatial resolution Contrast Artefacts Speckle and sharpness S. Edyvean St. George s Hospital London SW17 0QT Radiation
More informationCHAPTER 2 COMMISSIONING OF KILO-VOLTAGE CONE BEAM COMPUTED TOMOGRAPHY FOR IMAGE-GUIDED RADIOTHERAPY
14 CHAPTER 2 COMMISSIONING OF KILO-VOLTAGE CONE BEAM COMPUTED TOMOGRAPHY FOR IMAGE-GUIDED RADIOTHERAPY 2.1 INTRODUCTION kv-cbct integrated with linear accelerators as a tool for IGRT, was developed to
More informationMultislice CT: Current Technology and Future Developments
Multislice CT: Current Technology and Future Developments 1 Stefan Ulzheimer and Thomas Flohr Contents 1.1 Introduction 3 1.2 System Design 5 1.2.1 Gantry 6 1.2.2 X-Ray Tube and Generator 6 1.2.3 MDCT
More informationIntroduction. Chapter 16 Diagnostic Radiology. Primary radiological image. Primary radiological image
Introduction Chapter 16 Diagnostic Radiology Radiation Dosimetry I Text: H.E Johns and J.R. Cunningham, The physics of radiology, 4 th ed. http://www.utoledo.edu/med/depts/radther In diagnostic radiology
More informationExposure Indices and Target Values in Radiography: What Are They and How Can You Use Them?
Exposure Indices and Target Values in Radiography: What Are They and How Can You Use Them? Definition and Validation of Exposure Indices Ingrid Reiser, PhD DABR Department of Radiology University of Chicago
More informationWide beam CT dosimetry. Elly Castellano
Wide beam CT dosimetry Elly Castellano Outline revision: CT dose indices wide-beam CT: the end of the road for CTDI? the IEC rescue plan for CTDI 100 the american way AAPM report 111 better estimates of
More informationAn Activity in Computed Tomography
Pre-lab Discussion An Activity in Computed Tomography X-rays X-rays are high energy electromagnetic radiation with wavelengths smaller than those in the visible spectrum (0.01-10nm and 4000-800nm respectively).
More informationQC Testing for Computed Tomography (CT) Scanner
QC Testing for Computed Tomography (CT) Scanner QA - Quality Assurance All planned and systematic actions needed to provide confidence on a structure, system or component. all-encompassing program, including
More informationT h e P h a n t o m L a b o r a t o r y
T h e P h a n t o m L a b o r a t o r y 1 CCT228 ATCM Phantom Manual Copyright 2017 WARRANTY THE PHANTOM LABORATORY INCORPORATED ( Seller ) warrants that this product shall remain in good working order
More informationAbdominal Radiology ISSN X. Abdom Radiol DOI /s
Assessment of 70-keV virtual monoenergetic spectral images in abdominal CT imaging: A comparison study to conventional polychromatic 120- kvp images Negin Rassouli, Hamid Chalian, Prabhakar Rajiah, Amar
More informationTest Equipment for Radiology and CT Quality Control Contents
Test Equipment for Radiology and CT Quality Control Contents Quality Control Testing...2 Photometers for Digital Clinical Display QC...3 Primary Workstations...3 Secondary Workstations...3 Testing of workstations...3
More informationBrilliance in everything Philips CT products and services
Brilliance in everything Philips CT products and services Ready for anything No one does more than Philips to help you gain the productivity you need with a comprehensive approach to CT that marries significant
More informationThe future of nuclear imaging is clear
Cardius X-ACT The future of nuclear imaging is clear Increased regulations, growing competition, and concerns about radiation exposure are just a sampling of the current challenges facing the nuclear medicine
More informationI. PERFORMANCE OF X-RAY PRODUCTION COMPONENTS FLUOROSCOPIC ACCEPTANCE TESTING: TEST PROCEDURES & PERFORMANCE CRITERIA
FLUOROSCOPIC ACCEPTANCE TESTING: TEST PROCEDURES & PERFORMANCE CRITERIA EDWARD L. NICKOLOFF DEPARTMENT OF RADIOLOGY COLUMBIA UNIVERSITY NEW YORK, NY ACCEPTANCE TESTING GOALS PRIOR TO 1st CLINICAL USAGE
More informationCT Basics: Data Acquisition Module 3
Module 3 Transcript For educational and institutional use. This transcript is licensed for noncommercial, educational inhouse or online educational course use only in educational and corporate institutions.
More informationAn Activity in Computed Tomography
Pre-lab Discussion An Activity in Computed Tomography X-rays X-rays are high energy electromagnetic radiation with wavelengths smaller than those in the visible spectrum (0.01-10nm and 4000-800nm respectively).
More informationRadionuclide Imaging MII Single Photon Emission Computed Tomography (SPECT)
Radionuclide Imaging MII 3073 Single Photon Emission Computed Tomography (SPECT) Single Photon Emission Computed Tomography (SPECT) The successful application of computer algorithms to x-ray imaging in
More informationMultiple Choice Identify the letter of the choice that best completes the statement or answers the question.
RA110 test 3 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. An object 35 cm in width is radiographed at 100 cm SID and at a 50 cm SOD. What
More informationMulti-Access Biplane Lab
Multi-Access Biplane Lab Advanced technolo gies deliver optimized biplane imaging Designed in concert with leading physicians, the Infinix VF-i/BP provides advanced, versatile patient access to meet the
More informationFeatures and Weaknesses of Phantoms for CR/DR System Testing
Physics testing of image detectors Parameters to test Features and Weaknesses of Phantoms for CR/DR System Testing Spatial resolution Contrast resolution Uniformity/geometric distortion Dose response/signal
More informationAcceptance Testing of a Digital Breast Tomosynthesis Unit
Acceptance Testing of a Digital Breast Tomosynthesis Unit 2012 AAPM Spring Clinical Meeting Jessica Clements, M.S., DABR Objectives Review of technology and clinical advantages Acceptance Testing Procedures
More informationDose Reduction and Image Preservation After the Introduction of a 0.1 mm Cu Filter into the LODOX Statscan unit above 110 kvp
Dose Reduction and Image Preservation After the Introduction of a into the LODOX Statscan unit above 110 kvp Abstract: CJ Trauernicht 1, C Rall 1, T Perks 2, G Maree 1, E Hering 1, S Steiner 3 1) Division
More informationFOREWORD. Acknowledgements
ΠΑΝΕΠΙΣΗΜΙΟ ΠΑΣΡΩΝ Διαημημαηικό Πρόγραμμα Μεηαπηστιακών ποσδών ζηην Ιαηρική Φσζική Διπλωμαηική εργαζία «ΔΟΙΜΕΣΡΙΑ ΑΘΕΝΩΝ Ε ΕΞΕΣΑΕΙ ΤΠΟΛΟΓΙΣΙΚΗ ΣΟΜΟΓΡΑΦΙΑ ΠΟΛΛΑΠΛΩΝ ΣΟΜΩΝ» ηέλλα Γ. Θαλαζζινού Α.Μ : 1575
More informationabc MHRA Philips Mx8000 IDT CT scanner technical evaluation September 2004 Best choice best practice nww.medical-devices.nhs.
abc September 2004 MHRA 04099 Philips Mx8000 IDT CT scanner technical evaluation Best choice best practice www.mhra.gov.uk nww.medical-devices.nhs.uk About MHRA evaluation reports. What you can expect.
More informationPhilips Astonish. Key advantages. including improved image quality and
Philips Key advantages including improved image quality and with AC offers improved image quality, interpretative certainty, diagnostic Alternatively, simplify patient care by exposing patients to reduced
More informationRADspeed Pro. EDGEpackage C501-E041C
RADspeed Pro EDGEpackage C501-E041C 2 Some of the FPDs may be not available in your country. Please contact us to check the availability in your country. 3 Tomosynthesis in the Standing Position Tomosynthesis
More information3/31/2011. Objectives. Emory University. Historical Development. Historical Development. Historical Development
Teaching Radiographic Technique in a Digital Imaging Paradigm Objectives 1. Discuss the historical development of digital imaging. Dawn Couch Moore, M.M.Sc., RT(R) Assistant Professor and Director Emory
More informationQuantitation of clinical feedback on image quality differences between two CT scanner models
Received: 4 August 2016 Revised: 4 November 2016 Accepted: 12 December 2016 DOI: 10.1002/acm2.12050 MEDICAL IMAGING Quantitation of clinical feedback on image quality differences between two CT scanner
More informationNeuViz 16 Computed Tomography. Elevating routine imaging for exceptional results
NeuViz 16 Computed Tomography Elevating routine imaging for exceptional results Essence NeuViz 16 Raising the bar on clinical utility in routine imaging. Get more. More clinical information for patients.
More informationPure confidence in action. Philips Ingenuity CT specifications
Pure confidence in action Philips Ingenuity CT specifications Table of contents 1 Introduction 3 2 Imaging 2.0 4 3 Results Driven Scanning 5 3.1 ExamCards 5 3.2 ScanRuler 5 3.3 SyncRight 5 4 Dose management
More informationInitial Certification
Initial Certification Nuclear Medical Physics (NMP) Study Guide Part 2 Content Guide and Sample Questions The content of all ABR exams is determined by a panel of experts who select the items based on
More informationChanging the Shape of Nuclear Medicine
TRUTH IN IMAGING Changing the Shape of Nuclear Medicine Multi-Purpose SPECT Scanner Nothing Gets Closer Introducing 360 Body Contour Scanning With 360 degree detector coverage, and unique proximity sensors
More informationTISSUE EQUIVALENT PHANTOMS FOR EVALUATING IN-PLANE TUBE CURRENT MODULATED CT DOSE AND IMAGE QUALITY
TISSUE EQUIVALENT PHANTOMS FOR EVALUATING IN-PLANE TUBE CURRENT MODULATED CT DOSE AND IMAGE QUALITY By RYAN F. FISHER A THESIS PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT
More informationGE Healthcare. Senographe 2000D Full-field digital mammography system
GE Healthcare Senographe 2000D Full-field digital mammography system Digital has arrived. The Senographe 2000D Full-Field Digital Mammography (FFDM) system gives you a unique competitive advantage. That
More informationSOMATOM Esprit A Bundle of Energy
SOMATOM Esprit A Bundle of Energy DATA SOMATOM Esprit An economical CT scanner designed for...... Excellent spiral image quality... A wide range of clinical applications... Value performance and reliabilty
More informationY11-DR Digital Radiography (DR) Image Quality
Y11-DR Digital Radiography (DR) Image Quality Image quality is stressed for all systems in Safety Code 35. In the relevant sections Health Canada s advice is the manufacturer s recommended test procedures
More informationLunar Technology Advantages
Lunar Technology Advantages DXA stands for Dual-Energy X-ray Absorptiometry. It is a measurement method that uses the differences in the absorption of high energy and low energy X-ray photons by different
More informationCT Basics: Computed Tomography Fundamentals Module 1
Module 1 Transcript For educational and institutional use. This transcript is licensed for noncommercial, educational inhouse or online educational course use only in educational and corporate institutions.
More informationBeam-Restricting Devices
Beam-Restricting Devices Three factors contribute to an increase in scatter radiation: Increased kvp Increased Field Size Increased Patient or Body Part Size. X-ray Interactions a some interact with the
More informationSuppression of metal artifacts using image-based monoenergetic DECT imaging
Suppression of metal artifacts using image-based monoenergetic DECT imaging Poster No.: C-0519 Congress: ECR 2011 Type: Scientific Paper Authors: B. Krauss, B. Schmidt, M. Sedlmair, T. Flohr; Forchheim/DE
More informationCOCIR SELF-REGULATORY INITIATIVE FOR MEDICAL IMAGING EQUIPMENT COMPUTED TOMOGRAPHY MEASUREMENT OF ENERGY CONSUMPTION
COCIR SELF-REGULATORY INITIATIVE FOR MEDICAL IMAGING EQUIPMENT COMPUTED TOMOGRAPHY MEASUREMENT OF ENERGY CONSUMPTION Revision: 1 Date: June 2015 Approved: June 2015 TABLE OF CONTENT 1. INTRODUCTION...
More informationAdvanced Noise Reduction Processing for X-ray CT System with Iterative Processing. Koichi Hirokawa MEDIX VOL. 56 P.43 P.46
Advanced Noise Reduction Processing for X-ray CT System with Iterative Processing Taiga Goto Koichi Hirokawa Hisashi Takahashi MEDIX VOL. 56 P.43 P.46 Advanced Noise Reduction Processing for X-ray CT System
More informationFour-dimensional Computed Tomography (4D CT) Concepts and Preliminary Development
ORIGINAL ARTICLE ORIGINAL ARTICLE Radiation Medicine: Vol. 21 No. 1, 17 22 p.p., 2003 Four-dimensional Computed Tomography (4D CT) Concepts and Preliminary Development Masahiro Endo,* Takanori Tsunoo,*
More informationDigital Imaging and Communications in Medicine (DICOM) Supplement 188: Multi-energy CT Images
Supplement 188: Multi-energy CT Images Page 1 2 4 6 Digital Imaging and Communications in Medicine (DICOM) 8 Supplement 188: Multi-energy CT Images 10 12 14 16 18 20 Prepared by: 22 DICOM Standards Committee,
More informationSIGNA Explorer Lift revives our MR
Seiji Shiotani, MD, PhD Seirei Fuji Hospital in Fuji City, Shizuoka, Japan Masayoshi Sugimura Seirei Fuji Hospital in Fuji City, Shizuoka, Japan SIGN Explorer Lift revives our MR The clinical usefulness
More informationClinical Experiences with a Patient Skin Dose Monitoring and Tracking Program
Clinical Experiences with a Patient Skin Dose Monitoring and Tracking Program Allen R. Goode, MS, DABR Chief Diagnostic Medical Physicist Department of Radiology & Medical Imaging University of Virginia
More informationClinical Experience Using the Open Bore Multislice CT System Supria (16 slice CT) MEDIX VOL. 61 P.8 P.11
Clinical Experience Using the Open Bore Multislice CT System Supria (16 slice CT) Hiroki Kadoya Yukiko Kitagawa MEDIX VOL. 61 P.8 P.11 Clinical Experience Using the Open Bore Multislice CT System Supria
More informationPatient-Assisted Compression Impact on Image Quality and Workflow
Patient-Assisted Compression Impact on Image Quality and Workflow Senographe Pristina In 2017, GE Healthcare s Senographe Pristina ( Pristina ) was approved by the FDA using the standard technologist-controlled
More informationChiara Secco. PET Performance measurements of the new LSO-Based Whole Body PET/CT. Scanner biograph 16 HI-REZ using the NEMA NU Standard.
Chiara Secco PET Performance measurements of the new LSO-Based Whole Body PET/CT Scanner biograph 16 HI-REZ using the NEMA NU 2-2001 Standard. INTRODUCTION Since its introduction, CT has become a fundamental
More informationCT Basics: Equipment and Instrumentation Module 2
Module 2 Transcript For educational and institutional use. This transcript is licensed for noncommercial, educational in-house or online educational course use only in educational and corporate institutions.
More information2D, 3D CT Intervention, and CT Fluoroscopy
2D, 3D CT Intervention, and CT Fluoroscopy SOMATOM Definition, Definition AS, Definition Flash Answers for life. Siemens CT Vision Siemens CT Vision The justification for the existence of the entire medical
More informationLudlum Medical Physics
Ludlum Medical Physics Medical Imaging Radiology QA Test Tools NEW LUDLUM PRODUCT LINE Medical Physics Products Medical Physics Products What are they? Products used to measure radiation output and to
More informationMultisection CT: Scanning Techniques and Clinical Applications 1
IMAGING & THERAPEUTIC TECHNOLOGY Multisection CT: Scanning Techniques and Clinical Applications 1 1787 Jonas Rydberg, MD Kenneth A. Buckwalter, MD Karen S. Caldemeyer, MD Michael D. Phillips, MD Dewey
More informationIndustry Breakthrough
Industry Breakthrough Dynamic SPECT Acquisition Quantifying Myocardial Blood Flow Nuclear Cardiology in the 21st Century In the 21st century, most nuclear cameras are still relying on a technology invented
More informationA comparison of two methods for the determination of freein-air geometric efficiency in MDCT
A comparison of two methods for the determination of freein-air geometric efficiency in MDCT Theocharis Berris *1, Kostas Perisinakis 1,, Antonios E. Papadakis and John Damilakis 1, 1 Department of Medical
More informationOverview. Professor Roentgen was a Physicist!!! The Physics of Radiation Oncology X-ray Imaging
The Physics of Radiation Oncology X-ray Imaging Charles E. Willis, Ph.D. DABR Associate Professor Department of Imaging Physics The University of Texas M.D. Anderson Cancer Center Houston, Texas Overview
More informationMUSICA Nerve Center. Artificial Intelligence. Intelligent tools for your Digital Radiography workflow. Fluoroscopy. Workflow Optimization
Image Quality Bariatric Abdomen Pediatric Imaging Diagnostic Confidence Fluoroscopy Neonatal Imaging Scatter Suppression Dental Full Leg Full Spine Exposure Control Index Artificial Intelligence General
More informationDigital Imaging and Communications in Medicine (DICOM) Supplement 188: Multi-energy CT Images
Supplement 188: Multi-energy CT Images Page 1 2 4 6 Digital Imaging and Communications in Medicine (DICOM) 8 Supplement 188: Multi-energy CT Images 10 12 14 16 18 20 Prepared by: 22 DICOM Standards Committee,
More informationTruly flexible to meet your clinical needs
Truly flexible to meet your clinical needs 2 Adapting to meet your needs Flexible Fast and responsive Excellent image quality Designed with ergonomic efficiency Equipped with dose management tools 3 Three
More informationMeasurement of table feed speed in modern CT
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 15, NUMBER 3, 2014 Measurement of table feed speed in modern CT Atsushi Fukuda, 1,2a Pei-Jan P. Lin, 3 Kosuke Matsubara, 2 Tosiaki Miyati 2 Department
More informationFocal Spot Blooming in CT: We Didn t Know We Had a Problem Until We Had a Solution
Focal Spot Blooming in CT: We Didn t Know We Had a Problem Until We Had a Solution Cynthia H. McCollough, PhD, DABR, FAAPM, FACR Director, CT Clinical Innovation Center Professor of Medical Physics and
More information