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RADIOLOGY. As Clinical Anatomy. E-mail: x-ray@med.sc.edu Radiology Website: http://radiology.med.sc.edu Radiology Department: Basement of Library 733-3295. Francis Neuffer, M.D. U.S.C. School of Medicine. Speaker note. COURSE GOALS.
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RADIOLOGY As Clinical Anatomy E-mail: x-ray@med.sc.edu Radiology Website: http://radiology.med.sc.edu Radiology Department: Basement of Library 733-3295 Francis Neuffer, M.D. U.S.C. School of Medicine Speaker note
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.
WHAT IS DIAGNOSTIC RADIOLOGY? • 1 year intership • 4 year residency • 1 year fellowship ?
RADIOLOGIST ROLE • Separate: Normal from Abnormal • Characterize / Describe: Abnormality • Determine: Extent (stage) of disease • Suggest: Diagnosis / Differential • Recommend: Further exams / follow-up
X-RAY • Discovered and named by Dr. W. C. Röentgen at University of Würzburg, 1895 • Awarded first Nobel prize for physics, 1901 • Did not patent invention
FOOT AP PROJECTION (ANTERIOR - POSTERIOR) RT
TOMOGRAPHIC IMAGES ARE IN A SPECIFIC PLANE AXIAL CORONAL SAGITTAL RT RT
CT- HEAD RT CT REFERENCE FILM Skull / brain
RADIOLOGY TOOLS 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
X- RAY • High Energy Photon --Kilo Electron Volts • Ionizing Radiation • Exposes Film / Detector • Projection Data
X-RAYSPLAIN FILM RADIOGRAPHY • Chest • Mammography • Abdomen • Spine • Extremities & Joints • Skull
X - RAY --- FOUR BASIC DENSITIES • Air • Soft Tissue • Fat • Bone
CONTRAST RADIOGRAPHY • Injection, ingestion, or other placement of opaque material within the body. • Improves visualization and tissue separation. • Can demonstrate functional anatomy and pathology.
UPPER GI--(GASTRO INTESTINAL) STOMACH ORAL BARIUM CONTRAST WITHOUT CONTRAST-plain or scout film COLON BARIUM ENEMA RECTAL BARIUM CONTRAST
INTRAVENOUS PYELOGRAM – IVP INTRAVENOUS IODINE CONTRAST WITHOUT CONTRAST-plain or scout film ARTERIOGRAM INTRAARTERIAL IODINE CONTRAST
COMPUTED TOMOGRAPHY • HIGH ENERGY PHOTON • IONIZING RADIATION • EXPOSES DETECTOR • TOMOGRAPHIC DATA
CT EXAMPLE SCAN LEVEL RT
NUCLEAR MEDICINE • High Energy Photon • Ionizing Radiation --Radiopharmaceutical • Exposes Detector • Projection Data • Dynamic / Physiologic
NUCLEAR MEDICINE EXAMPLES • Bone • Hepatobiliary • Renal
ULTRASOUND • Sound Wave - high Frequency • No Ionizing Radiation • Transmitter / Receiver • Tomographic Data
ULTRASOUND EXAMPLES Gallbladder Kidney Obstetrics
MAGNETIC RESONANCE • Hydrogen Protons In a Magnetic Field • Radio Wave Signal Transmission • No Ionizing Radiation • Tomographic Data
RT MAGNETIC RESONANCEEXAMPLES • Brain • Spine • Knee
RADIOLOGY EVALUATION • Multiple Choice - Identify • Labeled Images From Digital Film Sets And Lecture Images
HOSPITAL LINGO You will hear and see these abbreviations used frequently in the medical community. X- Ray Plain Film Scout Film Radiograph Computed Tomography Cat Scan CT Nuclear Medicine Nuc Med Ultrasound Sono Sonogram Magnetic Resonance MR MRI
SUMMARY • TOMOGRAPHY- VS- PROJECTION IMAGES • SECTION PLANES AXIAL CORONAL SAGITTAL • IMAGE GENERATION OF: Nuclear Medicine Computed Tomography Ultrasound X-ray Magnetic Resonance
OH… THE MANY USES OF NUC MED STUDY OF A HORSE’S _____! KING TUT MODERN IMAGING?