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RADIOLOGIST ROLE Separate: Normal from Abnormal Characterize / Describe: Abnormality Determine: Extent (stage) of disease Suggest: Diagnosis / Differential Recommend: Further exams / follow-up 4
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As Clinical Anatomy
RADIOLOGY
COURSE GOALS
Understand basics of image generation.
Relate imaging to gross anatomy.
See clinical relationship to basic science.
Appreciate constraints and limitations.
Develop imaging vocabulary.
RADIOLOGIST ROLE
Separate: Normal from Abnormal
Characterize / Describe: Abnormality
Determine: Extent (stage) of disease
Suggest: Diagnosis / Differential
Recommend: Further exams / follow-up
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PROJECTION -VS-
TOMOGRAPHIC IMAGE
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FOOTAP PROJECTION(ANTERIOR - POSTERIOR)
RT
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LATERAL FOOT
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TOMOGRAPHIC IMAGES ARE IN A SPECIFIC PLANE
SAGITTALAXIAL CORONAL
RT RT
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CT- HEAD
CT REFERENCE FILMSkull / brain
RT
RADIOLOGY TOOLS
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X- RAY
ULTRASOUND
NUCLEAR MEDICINE
MAGNETIC RESONANCE COMPUTED TOMOGRAPHY
HOW IS IMAGING DONE?
IONIZING RADIATION X-ray, CT, Nuclear Medicine
SOUND WAVES Ultrasound
MAGNETIC FIELDS / RADIO WAVES
Magnetic Resonance
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X- RAYHigh Energy Photon --Kilo Electron Volts
Ionizing Radiation
Exposes Film / Detector
Projection Data
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X-RAYS
PLAIN FILM RADIOGRAPHY
ChestMammographyAbdomenSpineExtremities & JointsSkull
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Air
Soft Tissue
Fat
Bone
X - RAY --- FOUR BASIC DENSITIES
CONTRAST RADIOGRAPHY
Injection, ingestion, or other placement of opaque material within the body.
Improves visualization and tissue separation.
Can demonstrate functional anatomy and pathology.
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UPPER GI--(GASTRO INTESTINAL)
BARIUM ENEMA RECTAL BARIUM CONTRAST
WITHOUT CONTRAST-plain or scout film
STOMACH
COLON
ORAL BARIUM CONTRAST
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INTRAVENOUS PYELOGRAM – IVP INTRAVENOUS IODINE CONTRAST
ARTERIOGRAM INTRAARTERIAL IODINE CONTRAST
WITHOUT CONTRAST-plain or scout film
COMPUTED TOMOGRAPHY
HIGH ENERGY PHOTON
IONIZING RADIATION
EXPOSES DETECTOR
TOMOGRAPHIC DATA
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SCAN LEVEL
CT EXAMPLE
RT
NUCLEAR MEDICINE
High Energy Photon
Ionizing Radiation --Radiopharmaceutical
Exposes Detector
Projection Data
Dynamic / Physiologic
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NUCLEAR MEDICINE EXAMPLES
Hepatobiliary
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Renal
Bone
ULTRASOUND
Sound Wave - high Frequency
No Ionizing Radiation
Transmitter / Receiver
Tomographic Data
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ULTRASOUND EXAMPLES
Gallbladder
Kidney
Obstetrics
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Hydrogen Protons In a Magnetic Field
Radio Wave Signal Transmission
No Ionizing Radiation
Tomographic Data
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MAGNETIC RESONANCE
MAGNETIC RESONANCE
EXAMPLES
Brain
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Spine
Knee
RT
Multiple Choice - Identify Labeled Images From Digital Film Sets And Lecture Images
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RADIOLOGY EVALUATION
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X- Ray Plain Film Scout Film Radiograph
Computed Tomography Cat Scan CT Nuclear Medicine Nuc Med
Ultrasound Sono Sonogram
Magnetic Resonance MR MRI
You will hear and see these abbreviations used frequently in the medical community.
SUMMARY
TOMOGRAPHY- VS- PROJECTION IMAGES
SECTION PLANES AXIAL CORONAL SAGITTAL
IMAGE GENERATION OF: Nuclear Medicine Computed Tomography Ultrasound X-ray Magnetic Resonance
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