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Materials of methodical maintenance classes on number 15 "Modern methods of radiation diagnosis of pathology of the central nervous system (CT, MRI, PET). Strokes. Tumors." 1. 1. 2. 3. 4. 5. Which method is preferable to apply the radiation diagnosis of suspected acute ischemic stroke on stage to assist in the emergency department: X-rays of the skull in two projections MRI CT PAT CT scan with contrast 1. 2. 3. 4. Indications for PET: tumor metabolism evaluated for malignancy assessment of the viability of brain tissue in stroke Clarification of hemorrhagic stroke localization control of the treatment of acute circulatory disorders 1. 2. 3. 4. Identify indications for angiography: Diagnosis of acute circulatory disorders planning endovascular or surgical treatment identification of areas of hemorrhage ischemia detection zone 1. 2. 3. 4. What is the density of the abnormal area in ischemia: 18-22 HU 30-40 HU 55-70 HU 250-400 HU 1. 2. 3. 4. What is the density of the abnormal area in hemorrhagic stroke: 18-22 HU 30-40 HU 55-70 HU 250-400 HU 1. 2. 3. CT perfusion imaging is used to: evaluating the viability of a tumor after chemotherapy estimate the amount of viable tissue of stroke control dynamics intracerebral hemorrhage 1. 2. 3. 4. The presence of calcifications in the tissue tumors more likely to indicate: benign tumor cancer pituitary tumor calcifications are not found in brain tumors 1. 2. 3. 4. Most often metastasize to the brain: stomach cancer Malignant tumors of the skeleton lung cancer colon cancer 2. 3. 4. 5. 6. 7. 8. 9. The walls of the spinal canal is possible to visualize clearly on: 1. 2. 3. 4. radiograph of the spine in a straight line projection radiographs of the spine in lateral projection CT scan linear tomogram 1. 2. 3. 4. Signs of vertebral compression fractures: enlightenment line, passing through the vertebral body wedge-shaped vertebral body deformity the presence of a single bone fragment with an offset into the spinal canal increasing the height of the vertebral body 10. ele ve n. Can normal kaltsefikatsii observed in the brain? 1. 2. 3. 4. 5. Yes, in pituitary No never Yes, in the epiphysis Older people in the corpus callosum Yes, in the middle cerebral artery. 1. 2. 3. 4. 5. At what method of radiation diagnosis well defined Turkish saddle? X-ray of the skull CT MRI Tomography When all of the above. 1. 2. 3. 4. 5. What method of radiation imaging has worse spatial resolution? PAT MRI CT SPL MSCT 12. 13. REFERENCE responses to tests to the subject of number 15. 13 2-1 3. - 2 4-1 5-3 6-2 7. - 1 8. - 3 9. - 3 10. - 2 11. - 3 12 - 5 13 - 1 Situational tasks to the subject of number 15. Objective 1.Patient K., 22 years old, was taken to the emergency room after a road accident. Objectively: consciousness is absent, the heart rate - 80 beats / min, respiratory rate - 14 / min, color - deep wound in the temporo-parietal region with bleeding symptoms. 1. What method of beam diagnostics you will use to confirm the diagnosis? 2. What are the advantages of this method over the skull radiography in two projections? 3. What changes do you expect to be detected by the selected method of radiation in this patient? Objective 2.Patient P., 57 years, 6 months after surgery for removal of glioblastoma right temporo-parietal region, complains of weakness in the left extremities, headache. There are metal clips at the site of surgery. 1. Which method you will use to confirm the diagnosis? 2. What a contrast agent, and administration method you apply in the study? 3. What is the purpose of the use of contrast medium? Task 3.Patient A., 72 years old, complains of weakness in the right extremities, difficulty in speech. Neuropathology preliminary diagnosis: acute cerebrovascular accident (stroke). 1. What method of beam diagnostics you will use to confirm the diagnosis? 2. In what period of time is preferable to carry out research? 3. What changes do you expect to find in the study of this patient?