SlideShare a Scribd company logo
1 of 40
RADIATION PROTECTION IN DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY   L 8: Factors affecting image quality IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object]
Topics ,[object Object],[object Object],[object Object],[object Object],[object Object]
Overview ,[object Object]
Part 8: Image quality Topic 1: Basic Image Quality Evaluators IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
Imaging quality ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Factors affecting image quality Image quality Contrast Distortion  & artifact Noise Blur or  Unsharpness
Image quality evaluators/descriptors NOISE RESOLUTION CONTRAST Wiener spectra Modulation transfer  Function MTF Signal-to-noise Ratio S/N Contrast detail  analysis Rose model ROC analysis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Part 8: Image quality Topic 2: Image contrast IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
Image contrast Low Contrast Medium  Contrast High Contrast Image contrast refers to the fractional difference in optical density of brightness between two regions of an image
Some factors influencing contrast ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Technique factors (1)
Technique factors (2) ,[object Object],[object Object],[object Object],[object Object]
X Ray penetration in human tissues 60 kV - 50 mAs 70 kV - 50 mAs 80 kV - 50 mAs
X Ray penetration in human tissues Improvement of image contrast  (lung)
Technique factors (3) ,[object Object],[object Object],[object Object],[object Object]
X Ray penetration in human tissues 70 kV - 25 mAs 70 kV - 50 mAs 70 kV - 80 mAs
Receptor contrast ,[object Object],[object Object],[object Object],[object Object]
Video monitor ,[object Object],[object Object],[object Object],[object Object]
Contrast agents ,[object Object],[object Object],[object Object]
Part 8: Image quality Topic 3: Blur or lack of sharpness IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
Blur or lack of sharpness ,[object Object],[object Object],[object Object]
Resolution ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Factors affecting image sharpness Image  Unsharpness Geometric Unsharpness Subject  Unsharpness Motion  Unsharpness Subject  Unsharpness
Geometric blur  ,[object Object],[object Object],Small focal spot Large focal spot
Geometric blur  ,[object Object],[object Object],[object Object]
Lack of sharpness in the subject  ,[object Object],[object Object],[object Object],[object Object]
Lack of sharpness due to motion (1) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lack of sharpness due to motion (2) ,[object Object],[object Object],[object Object],[object Object]
Lack of receptor sharpness ,[object Object],[object Object],[object Object],[object Object]
Part 8: Image quality Topic 4: Distortion and artifacts IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
Distortion and artifacts ,[object Object],[object Object],[object Object],[object Object],[object Object]
Distortion and artifacts
Distortion and artifacts
Part 8: Image quality Topic 5: Image noise IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
Noise ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Noise in film ,[object Object]
Image noise ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Summary ,[object Object],[object Object]
Where to Get More Information ,[object Object],[object Object],[object Object]

More Related Content

What's hot

Digital Radiography dentistry
Digital Radiography dentistryDigital Radiography dentistry
Digital Radiography dentistry
Nishtha Singhal
 
twofold processing for denoising ultrasound medical images
twofold processing for denoising ultrasound medical imagestwofold processing for denoising ultrasound medical images
twofold processing for denoising ultrasound medical images
anil kumar
 
Imaging for Radiotherapy delivery and verification
Imaging for Radiotherapy delivery and verificationImaging for Radiotherapy delivery and verification
Imaging for Radiotherapy delivery and verification
Miami Cancer Institute
 
research paper Ijetae 0812 23
research paper Ijetae 0812 23research paper Ijetae 0812 23
research paper Ijetae 0812 23
Punit Karnani
 
Efficient analysis mri us 1
Efficient analysis mri us 1Efficient analysis mri us 1
Efficient analysis mri us 1
Mhmd Abuazoum
 

What's hot (20)

Digital Radiography dentistry
Digital Radiography dentistryDigital Radiography dentistry
Digital Radiography dentistry
 
twofold processing for denoising ultrasound medical images
twofold processing for denoising ultrasound medical imagestwofold processing for denoising ultrasound medical images
twofold processing for denoising ultrasound medical images
 
Imaging for Radiotherapy delivery and verification
Imaging for Radiotherapy delivery and verificationImaging for Radiotherapy delivery and verification
Imaging for Radiotherapy delivery and verification
 
Recent advances digital imaging
Recent advances digital imaging Recent advances digital imaging
Recent advances digital imaging
 
Lec2: Digital Images and Medical Imaging Modalities
Lec2: Digital Images and Medical Imaging ModalitiesLec2: Digital Images and Medical Imaging Modalities
Lec2: Digital Images and Medical Imaging Modalities
 
An Image-Based Bone fracture Detection Using AForge Library
An Image-Based Bone fracture Detection Using AForge LibraryAn Image-Based Bone fracture Detection Using AForge Library
An Image-Based Bone fracture Detection Using AForge Library
 
Implementation of Lower Leg Bone Fracture Detection from X Ray Images
Implementation of Lower Leg Bone Fracture Detection from X Ray ImagesImplementation of Lower Leg Bone Fracture Detection from X Ray Images
Implementation of Lower Leg Bone Fracture Detection from X Ray Images
 
EPID AND CBCT ON RADIATION THERAPY
EPID AND CBCT ON RADIATION THERAPYEPID AND CBCT ON RADIATION THERAPY
EPID AND CBCT ON RADIATION THERAPY
 
research paper Ijetae 0812 23
research paper Ijetae 0812 23research paper Ijetae 0812 23
research paper Ijetae 0812 23
 
Medical Image Processing
Medical Image ProcessingMedical Image Processing
Medical Image Processing
 
Efficient analysis mri us 1
Efficient analysis mri us 1Efficient analysis mri us 1
Efficient analysis mri us 1
 
Carestream RSNA 2015 Pediatric Fracture Detection Study
Carestream RSNA 2015 Pediatric Fracture Detection StudyCarestream RSNA 2015 Pediatric Fracture Detection Study
Carestream RSNA 2015 Pediatric Fracture Detection Study
 
DIRECTVIEW EVP Plus Software
DIRECTVIEW EVP Plus SoftwareDIRECTVIEW EVP Plus Software
DIRECTVIEW EVP Plus Software
 
Intensity modulated radiation therapy and Image guided radiation therapy
Intensity modulated radiation therapy and Image guided radiation therapy Intensity modulated radiation therapy and Image guided radiation therapy
Intensity modulated radiation therapy and Image guided radiation therapy
 
Image Guided Radiation Therapy (IGRT)
Image Guided Radiation Therapy (IGRT)Image Guided Radiation Therapy (IGRT)
Image Guided Radiation Therapy (IGRT)
 
3d Imaging
3d Imaging3d Imaging
3d Imaging
 
Smart Noise Cancellation Processing: New Level of Clarity in Digital Radiography
Smart Noise Cancellation Processing: New Level of Clarity in Digital RadiographySmart Noise Cancellation Processing: New Level of Clarity in Digital Radiography
Smart Noise Cancellation Processing: New Level of Clarity in Digital Radiography
 
Instant fracture detection using ir-rays
Instant fracture detection using ir-raysInstant fracture detection using ir-rays
Instant fracture detection using ir-rays
 
Wavelet Transform Based Reduction of Speckle in Ultrasound Images
Wavelet Transform Based Reduction of Speckle in Ultrasound ImagesWavelet Transform Based Reduction of Speckle in Ultrasound Images
Wavelet Transform Based Reduction of Speckle in Ultrasound Images
 
Introduction to Medical Imaging
Introduction to Medical ImagingIntroduction to Medical Imaging
Introduction to Medical Imaging
 

Viewers also liked

L14 Pregnancy
L14 PregnancyL14 Pregnancy
L14 Pregnancy
lidgor
 
L13.1 Occup Regulatory
L13.1 Occup RegulatoryL13.1 Occup Regulatory
L13.1 Occup Regulatory
lidgor
 
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
Ali Hassan
 
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
Ali Hassan
 
L13.1 Occup Regulatory
L13.1 Occup RegulatoryL13.1 Occup Regulatory
L13.1 Occup Regulatory
lidgor
 
The digestive system
The digestive systemThe digestive system
The digestive system
shakialewis
 
Pathogenesis of asthma and omalizumab action
Pathogenesis of asthma and omalizumab actionPathogenesis of asthma and omalizumab action
Pathogenesis of asthma and omalizumab action
Muhammad Ali
 

Viewers also liked (20)

KUB club
KUB clubKUB club
KUB club
 
L14 Pregnancy
L14 PregnancyL14 Pregnancy
L14 Pregnancy
 
L13.1 Occup Regulatory
L13.1 Occup RegulatoryL13.1 Occup Regulatory
L13.1 Occup Regulatory
 
Family issue (Divorce)
Family issue (Divorce)Family issue (Divorce)
Family issue (Divorce)
 
الحميات النزفية الفيروسية Maj1
الحميات النزفية الفيروسية Maj1الحميات النزفية الفيروسية Maj1
الحميات النزفية الفيروسية Maj1
 
Foot injuries
Foot injuriesFoot injuries
Foot injuries
 
Urinary system
Urinary systemUrinary system
Urinary system
 
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
 
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
دور مؤسسات العمل الخيري الصحية في التنمية البشرية المستدامة (1)
 
L13.1 Occup Regulatory
L13.1 Occup RegulatoryL13.1 Occup Regulatory
L13.1 Occup Regulatory
 
The digestive system
The digestive systemThe digestive system
The digestive system
 
Chyluria
ChyluriaChyluria
Chyluria
 
Hung nguyen mipacs_report
Hung nguyen mipacs_reportHung nguyen mipacs_report
Hung nguyen mipacs_report
 
Priapism
PriapismPriapism
Priapism
 
Ecg fundamentals
Ecg fundamentalsEcg fundamentals
Ecg fundamentals
 
Deciphering the dilemma of parametric and nonparametric tests
Deciphering the dilemma of parametric and nonparametric testsDeciphering the dilemma of parametric and nonparametric tests
Deciphering the dilemma of parametric and nonparametric tests
 
Pathogenesis of asthma and omalizumab action
Pathogenesis of asthma and omalizumab actionPathogenesis of asthma and omalizumab action
Pathogenesis of asthma and omalizumab action
 
Common statistical pitfalls in basic science research
Common statistical pitfalls in basic science researchCommon statistical pitfalls in basic science research
Common statistical pitfalls in basic science research
 
Cephlometric history, evolution & landmarks
Cephlometric history, evolution & landmarksCephlometric history, evolution & landmarks
Cephlometric history, evolution & landmarks
 
Err is human
Err is human Err is human
Err is human
 

Similar to L08 Image Quality

Radiographic image4
Radiographic image4Radiographic image4
Radiographic image4
mr_koky
 
Invisible x ray-image
Invisible x ray-imageInvisible x ray-image
Invisible x ray-image
mr_koky
 
Image quality, digital technology and radiation protection
Image quality, digital technology and radiation protectionImage quality, digital technology and radiation protection
Image quality, digital technology and radiation protection
Rad Tech
 
Image Quality And Artifacts in Computed Tomography.pptx
Image Quality And Artifacts in Computed Tomography.pptxImage Quality And Artifacts in Computed Tomography.pptx
Image Quality And Artifacts in Computed Tomography.pptx
ivanKeshari
 
Radiation protectionandqualityassessmentinxri fin
Radiation protectionandqualityassessmentinxri finRadiation protectionandqualityassessmentinxri fin
Radiation protectionandqualityassessmentinxri fin
MUBOSScz
 
Radiation protectionandqualityassessmentinxri fin
Radiation protectionandqualityassessmentinxri finRadiation protectionandqualityassessmentinxri fin
Radiation protectionandqualityassessmentinxri fin
MUBOSScz
 
A Proposed Framework to De-noise Medical Images Based on Convolution Neural N...
A Proposed Framework to De-noise Medical Images Based on Convolution Neural N...A Proposed Framework to De-noise Medical Images Based on Convolution Neural N...
A Proposed Framework to De-noise Medical Images Based on Convolution Neural N...
NIET Journal of Engineering & Technology (NIETJET)
 

Similar to L08 Image Quality (20)

Radiographic image4
Radiographic image4Radiographic image4
Radiographic image4
 
IMAGE QUALITY.pptx
IMAGE QUALITY.pptxIMAGE QUALITY.pptx
IMAGE QUALITY.pptx
 
CT image quality and image resolution.pptx
CT image quality and image resolution.pptxCT image quality and image resolution.pptx
CT image quality and image resolution.pptx
 
Invisible x ray-image
Invisible x ray-imageInvisible x ray-image
Invisible x ray-image
 
Image quality
Image qualityImage quality
Image quality
 
radiographic Image quality by Astuti Mishra
 radiographic Image quality by Astuti Mishra radiographic Image quality by Astuti Mishra
radiographic Image quality by Astuti Mishra
 
Ultrasound And Regional Anesthesia Feb 2009
Ultrasound And Regional Anesthesia Feb 2009Ultrasound And Regional Anesthesia Feb 2009
Ultrasound And Regional Anesthesia Feb 2009
 
IMAGE QUALITY AND IMAGE ARTIFACTS .pptx
IMAGE QUALITY AND IMAGE ARTIFACTS  .pptxIMAGE QUALITY AND IMAGE ARTIFACTS  .pptx
IMAGE QUALITY AND IMAGE ARTIFACTS .pptx
 
Image quality, digital technology and radiation protection
Image quality, digital technology and radiation protectionImage quality, digital technology and radiation protection
Image quality, digital technology and radiation protection
 
Image Quality And Artifacts in Computed Tomography.pptx
Image Quality And Artifacts in Computed Tomography.pptxImage Quality And Artifacts in Computed Tomography.pptx
Image Quality And Artifacts in Computed Tomography.pptx
 
Radiation protectionandqualityassessmentinxri fin
Radiation protectionandqualityassessmentinxri finRadiation protectionandqualityassessmentinxri fin
Radiation protectionandqualityassessmentinxri fin
 
Radiation protectionandqualityassessmentinxri fin
Radiation protectionandqualityassessmentinxri finRadiation protectionandqualityassessmentinxri fin
Radiation protectionandqualityassessmentinxri fin
 
Determination ofRadiological Quality Parameters Using Optical Densitometer an...
Determination ofRadiological Quality Parameters Using Optical Densitometer an...Determination ofRadiological Quality Parameters Using Optical Densitometer an...
Determination ofRadiological Quality Parameters Using Optical Densitometer an...
 
Imaging.ppt
Imaging.pptImaging.ppt
Imaging.ppt
 
Alternative Imaging Techniques
Alternative Imaging TechniquesAlternative Imaging Techniques
Alternative Imaging Techniques
 
A Proposed Framework to De-noise Medical Images Based on Convolution Neural N...
A Proposed Framework to De-noise Medical Images Based on Convolution Neural N...A Proposed Framework to De-noise Medical Images Based on Convolution Neural N...
A Proposed Framework to De-noise Medical Images Based on Convolution Neural N...
 
Ijmet 09 11_013
Ijmet 09 11_013Ijmet 09 11_013
Ijmet 09 11_013
 
Flouroscopy JP.pptx
Flouroscopy JP.pptxFlouroscopy JP.pptx
Flouroscopy JP.pptx
 
Whitepaper: Does Image Quality Matter?
Whitepaper: Does Image Quality Matter?Whitepaper: Does Image Quality Matter?
Whitepaper: Does Image Quality Matter?
 
Cone beam computed tomography (2)
Cone beam computed tomography (2)Cone beam computed tomography (2)
Cone beam computed tomography (2)
 

More from lidgor

L13.2 Occup Radioprot
L13.2 Occup RadioprotL13.2 Occup Radioprot
L13.2 Occup Radioprot
lidgor
 
L12 Shielding
L12 ShieldingL12 Shielding
L12 Shielding
lidgor
 
L14 Pregnancy
L14 PregnancyL14 Pregnancy
L14 Pregnancy
lidgor
 
L13.2 Occup Radioprot
L13.2 Occup RadioprotL13.2 Occup Radioprot
L13.2 Occup Radioprot
lidgor
 
L12 Shielding
L12 ShieldingL12 Shielding
L12 Shielding
lidgor
 
L11 Qa
L11 QaL11 Qa
L11 Qa
lidgor
 
L08 Image Quality
L08 Image QualityL08 Image Quality
L08 Image Quality
lidgor
 
L10 Patient Dose
L10 Patient DoseL10 Patient Dose
L10 Patient Dose
lidgor
 
L09 Med Exp Bss
L09 Med Exp BssL09 Med Exp Bss
L09 Med Exp Bss
lidgor
 
L05 Interaction
L05 InteractionL05 Interaction
L05 Interaction
lidgor
 
L03 Biological Effects
L03 Biological EffectsL03 Biological Effects
L03 Biological Effects
lidgor
 
L04 Internat System
L04 Internat SystemL04 Internat System
L04 Internat System
lidgor
 
Xray Beam
Xray BeamXray Beam
Xray Beam
lidgor
 
Xray Production
Xray ProductionXray Production
Xray Production
lidgor
 
Radiation protection Overview
Radiation protection  OverviewRadiation protection  Overview
Radiation protection Overview
lidgor
 

More from lidgor (15)

L13.2 Occup Radioprot
L13.2 Occup RadioprotL13.2 Occup Radioprot
L13.2 Occup Radioprot
 
L12 Shielding
L12 ShieldingL12 Shielding
L12 Shielding
 
L14 Pregnancy
L14 PregnancyL14 Pregnancy
L14 Pregnancy
 
L13.2 Occup Radioprot
L13.2 Occup RadioprotL13.2 Occup Radioprot
L13.2 Occup Radioprot
 
L12 Shielding
L12 ShieldingL12 Shielding
L12 Shielding
 
L11 Qa
L11 QaL11 Qa
L11 Qa
 
L08 Image Quality
L08 Image QualityL08 Image Quality
L08 Image Quality
 
L10 Patient Dose
L10 Patient DoseL10 Patient Dose
L10 Patient Dose
 
L09 Med Exp Bss
L09 Med Exp BssL09 Med Exp Bss
L09 Med Exp Bss
 
L05 Interaction
L05 InteractionL05 Interaction
L05 Interaction
 
L03 Biological Effects
L03 Biological EffectsL03 Biological Effects
L03 Biological Effects
 
L04 Internat System
L04 Internat SystemL04 Internat System
L04 Internat System
 
Xray Beam
Xray BeamXray Beam
Xray Beam
 
Xray Production
Xray ProductionXray Production
Xray Production
 
Radiation protection Overview
Radiation protection  OverviewRadiation protection  Overview
Radiation protection Overview
 

Recently uploaded

SPLICE Working Group: Reusable Code Examples
SPLICE Working Group:Reusable Code ExamplesSPLICE Working Group:Reusable Code Examples
SPLICE Working Group: Reusable Code Examples
Peter Brusilovsky
 
Spellings Wk 4 and Wk 5 for Grade 4 at CAPS
Spellings Wk 4 and Wk 5 for Grade 4 at CAPSSpellings Wk 4 and Wk 5 for Grade 4 at CAPS
Spellings Wk 4 and Wk 5 for Grade 4 at CAPS
AnaAcapella
 
SURVEY I created for uni project research
SURVEY I created for uni project researchSURVEY I created for uni project research
SURVEY I created for uni project research
CaitlinCummins3
 
Transparency, Recognition and the role of eSealing - Ildiko Mazar and Koen No...
Transparency, Recognition and the role of eSealing - Ildiko Mazar and Koen No...Transparency, Recognition and the role of eSealing - Ildiko Mazar and Koen No...
Transparency, Recognition and the role of eSealing - Ildiko Mazar and Koen No...
EADTU
 

Recently uploaded (20)

SPLICE Working Group: Reusable Code Examples
SPLICE Working Group:Reusable Code ExamplesSPLICE Working Group:Reusable Code Examples
SPLICE Working Group: Reusable Code Examples
 
Spellings Wk 4 and Wk 5 for Grade 4 at CAPS
Spellings Wk 4 and Wk 5 for Grade 4 at CAPSSpellings Wk 4 and Wk 5 for Grade 4 at CAPS
Spellings Wk 4 and Wk 5 for Grade 4 at CAPS
 
SURVEY I created for uni project research
SURVEY I created for uni project researchSURVEY I created for uni project research
SURVEY I created for uni project research
 
Đề tieng anh thpt 2024 danh cho cac ban hoc sinh
Đề tieng anh thpt 2024 danh cho cac ban hoc sinhĐề tieng anh thpt 2024 danh cho cac ban hoc sinh
Đề tieng anh thpt 2024 danh cho cac ban hoc sinh
 
Sternal Fractures & Dislocations - EMGuidewire Radiology Reading Room
Sternal Fractures & Dislocations - EMGuidewire Radiology Reading RoomSternal Fractures & Dislocations - EMGuidewire Radiology Reading Room
Sternal Fractures & Dislocations - EMGuidewire Radiology Reading Room
 
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
 
Spring gala 2024 photo slideshow - Celebrating School-Community Partnerships
Spring gala 2024 photo slideshow - Celebrating School-Community PartnershipsSpring gala 2024 photo slideshow - Celebrating School-Community Partnerships
Spring gala 2024 photo slideshow - Celebrating School-Community Partnerships
 
How to Manage Website in Odoo 17 Studio App.pptx
How to Manage Website in Odoo 17 Studio App.pptxHow to Manage Website in Odoo 17 Studio App.pptx
How to Manage Website in Odoo 17 Studio App.pptx
 
Transparency, Recognition and the role of eSealing - Ildiko Mazar and Koen No...
Transparency, Recognition and the role of eSealing - Ildiko Mazar and Koen No...Transparency, Recognition and the role of eSealing - Ildiko Mazar and Koen No...
Transparency, Recognition and the role of eSealing - Ildiko Mazar and Koen No...
 
Mattingly "AI and Prompt Design: LLMs with NER"
Mattingly "AI and Prompt Design: LLMs with NER"Mattingly "AI and Prompt Design: LLMs with NER"
Mattingly "AI and Prompt Design: LLMs with NER"
 
AIM of Education-Teachers Training-2024.ppt
AIM of Education-Teachers Training-2024.pptAIM of Education-Teachers Training-2024.ppt
AIM of Education-Teachers Training-2024.ppt
 
Basic Civil Engineering notes on Transportation Engineering & Modes of Transport
Basic Civil Engineering notes on Transportation Engineering & Modes of TransportBasic Civil Engineering notes on Transportation Engineering & Modes of Transport
Basic Civil Engineering notes on Transportation Engineering & Modes of Transport
 
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUMDEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
 
MOOD STABLIZERS DRUGS.pptx
MOOD     STABLIZERS           DRUGS.pptxMOOD     STABLIZERS           DRUGS.pptx
MOOD STABLIZERS DRUGS.pptx
 
Book Review of Run For Your Life Powerpoint
Book Review of Run For Your Life PowerpointBook Review of Run For Your Life Powerpoint
Book Review of Run For Your Life Powerpoint
 
OS-operating systems- ch05 (CPU Scheduling) ...
OS-operating systems- ch05 (CPU Scheduling) ...OS-operating systems- ch05 (CPU Scheduling) ...
OS-operating systems- ch05 (CPU Scheduling) ...
 
When Quality Assurance Meets Innovation in Higher Education - Report launch w...
When Quality Assurance Meets Innovation in Higher Education - Report launch w...When Quality Assurance Meets Innovation in Higher Education - Report launch w...
When Quality Assurance Meets Innovation in Higher Education - Report launch w...
 
The Story of Village Palampur Class 9 Free Study Material PDF
The Story of Village Palampur Class 9 Free Study Material PDFThe Story of Village Palampur Class 9 Free Study Material PDF
The Story of Village Palampur Class 9 Free Study Material PDF
 
Stl Algorithms in C++ jjjjjjjjjjjjjjjjjj
Stl Algorithms in C++ jjjjjjjjjjjjjjjjjjStl Algorithms in C++ jjjjjjjjjjjjjjjjjj
Stl Algorithms in C++ jjjjjjjjjjjjjjjjjj
 
An Overview of the Odoo 17 Knowledge App
An Overview of the Odoo 17 Knowledge AppAn Overview of the Odoo 17 Knowledge App
An Overview of the Odoo 17 Knowledge App
 

L08 Image Quality

  • 1. RADIATION PROTECTION IN DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY L 8: Factors affecting image quality IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
  • 2.
  • 3.
  • 4.
  • 5. Part 8: Image quality Topic 1: Basic Image Quality Evaluators IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
  • 6.
  • 7. Factors affecting image quality Image quality Contrast Distortion & artifact Noise Blur or Unsharpness
  • 8.
  • 9. Part 8: Image quality Topic 2: Image contrast IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
  • 10. Image contrast Low Contrast Medium Contrast High Contrast Image contrast refers to the fractional difference in optical density of brightness between two regions of an image
  • 11.
  • 12.
  • 13.
  • 14. X Ray penetration in human tissues 60 kV - 50 mAs 70 kV - 50 mAs 80 kV - 50 mAs
  • 15. X Ray penetration in human tissues Improvement of image contrast (lung)
  • 16.
  • 17. X Ray penetration in human tissues 70 kV - 25 mAs 70 kV - 50 mAs 70 kV - 80 mAs
  • 18.
  • 19.
  • 20.
  • 21. Part 8: Image quality Topic 3: Blur or lack of sharpness IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
  • 22.
  • 23.
  • 24. Factors affecting image sharpness Image Unsharpness Geometric Unsharpness Subject Unsharpness Motion Unsharpness Subject Unsharpness
  • 25.
  • 26.
  • 27.
  • 28.
  • 29.
  • 30.
  • 31. Part 8: Image quality Topic 4: Distortion and artifacts IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
  • 32.
  • 35. Part 8: Image quality Topic 5: Image noise IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
  • 36.
  • 37.
  • 38.
  • 39.
  • 40.