Medical Imaging -- Introduction
Medical Imaging – IntroductionJan KybicFebruary 16, 2010
Medical imaging: a collaborative paradigmpicture from Atam P. Dhawan: Medical Imaging
From physiology to information processing(what we should learn) Understanding Imaging Medium Physics of Imaging Imaging Instrumentation Data Acquisition Methods Image Processing and Analysis
From physiology to information processing(what we should learn) Understanding Imaging Medium Physics of Imaging Imaging Instrumentation Data Acquisition Methods Image Processing and Analysis
From physiology to information processing(what we should learn) Understanding Imaging Medium Physics of Imaging Imaging Instrumentation Data Acquisition Methods Image Processing and Analysis
From physiology to information processing(what we should learn) Understanding Imaging Medium Physics of Imaging Imaging Instrumentation Data Acquisition Methods Image Processing and Analysis
From physiology to information processing(what we should learn) Understanding Imaging Medium Physics of Imaging Imaging Instrumentation Data Acquisition Methods Image Processing and Analysis
Medical imaging pipeline
Medical imaging pipelinepatient/subjectPhysical propertyImaging deviceRaw dataPreprocessingImproved titative/qualitative inf.physicianDecision
Medical imaging pipelinepatient/subjectPhysical propertyImaging deviceRaw dataPreprocessingImproved titative/qualitative inf.physicianDecision
Medical imaging pipelinepatient/subjectPhysical propertyImaging deviceRaw dataPreprocessingImproved titative/qualitative inf.Statistical processingphysicianDecision
Imaging devicePhysical property:density, absorbance,conductivity, . . .Raw dataImaging deviceExamples: CT, X-rays, MRI, ultrasound, . . .
PreprocessingA prioriknowledgePreprocessed, cleaned,enhanced dataRaw dataPreprocessingExamples: Noise suppression, contract enhancement, intensity equalization,outlier elimination, bias compensation, time/space filtering, . . .
ReconstructionPhysics of the acquisitiondevicePhysically meaningfullimages, volumes, sequencesPreprocessed raw dataReconstruction Inverse problemExamples: Tomographic reconstruction MRI, ultrasound . . .
InterpretationA prioriknowledgeImages, gQuantitative& qualitative inf.size, changes,metabolic inf.Examples: Registration, segmentation, classification, tracking,. . .
Modalities
Classification of medical modalities What information do we need? anatomical, physiological, functional
Classification of medical modalities What information do we need? anatomical, physiological, functionalWhat is the energy source? external, internal, combined
Classification of medical modalities What information do we need? What is the energy source? anatomical, physiological, functionalexternal, internal, combinedHow good is the image? resolution, noise
Classification of medical modalities What information do we need? What is the energy source? external, internal, combinedHow good is the image? anatomical, physiological, functionalresolution, noiseHow much does it cost?
Energy source
Electromagnetic spectrum
Examples
MicroscopyOptical microscopy – since 17th century; Jensen, van Leeuwenhoek,Galilei, . . .
X-rays / Radiography1895, W. RöntgenB. Röntgen handmodern hand
Computed tomographyThe machine:
Ultrasound – Equipment
MEG and EEGMagnetoencephalographyElectroencephalography
Magnetic resonance imaging (MRI)Larmor, Bloch, Purcell, Rabi, Lauterbur,. . . around 1973.
. . . and many others SPECT (Single Photon Emission Computed Tomography) PET (Positron Emission Tomography) gamma camera termography .
OK, here ends the preview. Questions?. . . otherwise let us start with image processing
Medical imaging: a collaborative paradigm picture from Atam P. Dhawan: Medical Imaging. From physiology to information processing (what we should learn) Understanding Imaging Medium Physics of Imaging
1. Medical imaging coordinate naming 2. X-ray medical imaging Projected X-ray imaging Computed tomography (CT) with X-rays 3. Nuclear medical imaging 4. Magnetic resonance imaging (MRI) 5. (Ultrasound imaging covered in previous lecture) Slide 3: Medical imaging coordinates The anatomical terms of location Superior / inferior, left .
Medical X-Ray Medical Imaging N/A N/A 5-100 Tc-99m Medical Imaging (SPECT) 6.02 hours J 140.5 Tl-201 Medical Imaging (SPECT) 73 hours H 135, 167 In-111 Medical Imaging (SPECT) 2.83 days H 171, 245 F-18 Medical Imaging (PET) 1.83 hours E 511 Ga-68 Medical Imaging (PET) 68 minutes E 511 Cs-137 Fission Product 30.17 years E- 662
BIBLIOGRAPHY Physics for Medical Imaging P. Allisy-Roberts, J. Williams – Farr’s Physics for Medical Imaging Radiological Physics P. Dendy, B. Heaton – Physics for Radiologists Medical Imaging J. Bushberg et al – The Essential Physics of Medical Imaging S. Webb – The Physics of Medical Imaging Nuclear Medicine
Rhode Island Medical Imaging: Greenwich Medical Center 1351 South County Trail, Suite 105, East Greenwich, RI 02818 : Rhode Island Medical Imaging: Blackstone Valley Medical Building 333 School Street, Suite 105, Pawtucket, RI 02860 . Rhode Island Medical Imaging: Moshassuck Medical Center 1 Randall Square, Suite 103, Providence, RI 02904
Head to Toe Imaging Conference 34th Annual Morton A. Bosniak The Department of Radiology Presents: New York Hilton Midtown December 14–18, 2015 Monday, Dec. 14 Abdominal Imaging & Emergency Imaging Tuesday, Dec. 15 Thoracic Imaging & Cardiac Imaging Wednesday, Dec. 16 Neuroradiology & Pediatric Imaging Thursday, Dec. 17 Musculoskeletal Imaging & Interventional
Nature of Medical Imaging For this class: Medical Imaging: Non-invasive imaging of internal organs, tissues, bones, etc. Focus on: 1.Macroscopic not microscopic 2.in vivo (in the body) not in vitro ("in glass", in the lab) 3.Primarily human studies 4.Primarily clinical diagnostic applications Alessio - BIO508 Nature of Medical Imaging QUICK .
titles in Radiology. Radiology Books Journals Electronic Resources 2016. 3 Contents 3 Neurologic Imaging 6 Abdominal Imaging 7 Breast Imaging 8 Diagnostic Imaging 9 Pediatric Imaging 10 Thieme eRadiology 11 General Radiology 13 Musculoskeletal Imaging 14 Interventional Radiology 16 RadCases
Community-based health care, including outreach and campaigns, in the context of the COVID-19 pandemic 3 Box 1. Community-based health care Community-based health care includes services delivered by a broadly defined community health workforce, according to their training and capacity, encompassing a range of health workers, lay and professional, formal and informal, paid and unpaid, as well .
