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VICTORIAN CTTG QUIZ 6th Sept and answers

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Information about VICTORIAN CTTG QUIZ 6th Sept and answers
Education

Published on January 17, 2009

Author: jakey39

Source: authorstream.com

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6th September 2008 Quiz : 6th September 2008 Quiz Compiled by Christine Vanderley-Reichner MIR, DSR Slide 2: 40 QUESTIONS PHYSICS PATHOLGY ANATOMY CT READING GENERAL MEDICAL The answers and explanation ( where relevant) will be put onto the new CTTG website Write A.B.C.D.E.F on your answer sheet. WRITE YOUR NAME ONTO THE ANSWER SHEET Q1. CT density of water should be close to ? HU : Q1. CT density of water should be close to ? HU -50 -100 1 +50 +100 +1000 Q2. Which imaging modality in this list has the highest DPI ? : Q2. Which imaging modality in this list has the highest DPI ? Computed tomography Mammography - dots per inch- spatial resolution Plain film Q3. The CT density of the aorta for good quality CT angiography should be close to ? : Q3. The CT density of the aorta for good quality CT angiography should be close to ? 50 HU 100 200 HU 500 HU – ve 100HU 0 Q4. DLP is a indication of ? : Q4. DLP is a indication of ? Spatial resolution Contrast resolution Quantum mottle Speed Dose- dose length product MTF Q5. Which of the following is the goal of ultra fast modern CT ? : Q5. Which of the following is the goal of ultra fast modern CT ? Elimination of artefacts due to beam hardening Minimise artefacts due to partial volume averaging Removal of artefacts due to patient breathing or organ movement and minimise IV contrast use Scan 100 patients an hour Q6 . Which of the following may influence the value of the Hounsfield density? : Q6 . Which of the following may influence the value of the Hounsfield density? The energy of the radiation beam ( kV)- physics of dual kV The scanning motion of the x-ray tube and detectors The number of the detectors The number of acquisition slices The speed of the rotation The size of the range Q7. The pitch in CT scanning may be used in many ways. Which of these statements is correct ? : Q7. The pitch in CT scanning may be used in many ways. Which of these statements is correct ? A pitch greater than 1 can reduce the breath hold time- A pitch less than 1 may be used to decrease the radiation dose- more not less A pitch less than 1 will cause the slice width to broaden- broader with higher pitch A Pitch greater than 1 can be used to increase the mAs Q8. What is the average effective background radiation dose received in Australia( Victoria) per person per year? : Q8. What is the average effective background radiation dose received in Australia( Victoria) per person per year? 2-3 mSv 2-3 mGy 5-6 mSv 5-6mGy 10mSv Q9. According to the universal table of elements, which of these numbers is incorrect ? : Q9. According to the universal table of elements, which of these numbers is incorrect ? Barium 56 Iron 26 Iodine 53 calcium 40- (20) NONE Q10. Which/what of the following should be the main influence the selection of the acquisition slice thickness when CT scanning? : Q10. Which/what of the following should be the main influence the selection of the acquisition slice thickness when CT scanning? the radiologist the radiographer the size of the object- avoid volume averaging the density of the object the rotation speed Q11. When the window level is +400and the window level is 0 : Q11. When the window level is +400and the window level is 0 All structures above +400 appear black All structures below -400 appear white The image grey scale is -200 to +200 None of the above Q12. If you suffered from “ataxia” Which would be the primary organ involved? : Q12. If you suffered from “ataxia” Which would be the primary organ involved? brain heart aorta liver kidney Q13.There are many Latin prefixes and suffixes in common usage. What does the suffix “itis” mean? : Q13.There are many Latin prefixes and suffixes in common usage. What does the suffix “itis” mean? Large Inflammation Infected Red Q14. A low “eGFR” is an indication of a ? : Q14. A low “eGFR” is an indication of a ? Slow heart rate brachycardia Reduced iron (anaemia) Reduced renal function Concussion-Glasgow Coma Scale A Low Central core temperature Q15. There are a number of anatomical names that are repeated in more than one region of the body, eg the Styloid Process (of the ulna). Where is there another? : Q15. There are a number of anatomical names that are repeated in more than one region of the body, eg the Styloid Process (of the ulna). Where is there another? Shoulder Mandible Temporal bone/Base of skull Ankle Q16. There are a number of diseases named with peoples names. Vitamin D( it causes defective bone growth) It is also known as ? : Q16. There are a number of diseases named with peoples names. Vitamin D( it causes defective bone growth) It is also known as ? Rickets disease Hansen's Disease-Leprosy von Recklinghausen’s Disease- neuro fibromatosis Filatov’s Disease- infectious monnucleosis Q17. If you had a “Riadels Lobe”, To which organ would it be attached ? : Q17. If you had a “Riadels Lobe”, To which organ would it be attached ? Brain Liver Spleen Lung Brain Q18. “Bests disease” it not best at all. What does it cause? : Q18. “Bests disease” it not best at all. What does it cause? Jaundice Cardiac myopathy Leukoencephalopathy Macular degeneration Dementia Pancreatitis Q19. If you suffered from colitis. Which would be the region of the bowel most likely to be involved ? : Q19. If you suffered from colitis. Which would be the region of the bowel most likely to be involved ? Large bowel Stomach Duodenum Small bowel Terminal ileum Cardiac sphincter Q20. This CT carotid angiogram (curved MPR of ICA) is consistent with ? : Q20. This CT carotid angiogram (curved MPR of ICA) is consistent with ? Vascular occlusion Vascular Stenosis A normal vessel Intrinsic mass None of the above Q21.This non contrast CT head scan is an example of ? : Q21.This non contrast CT head scan is an example of ? A normal scan Subdural haematoma Extradural haematoma Sub arachnoid haematoma Q22 This abnormal CT head scan is an example of ? : Q22 This abnormal CT head scan is an example of ? extra dural haematoma (EDH) intra cranial haematoma (ICH) sub dural haematoma (SDH intra ventricular haematoma (IVH) bilateral chronic on acute sub dural haematoma( SDH) Q23. This CT scan of a head is an example of Paget’s disease. This disease is caused by ? : Q23. This CT scan of a head is an example of Paget’s disease. This disease is caused by ? Osseous dysplasia Osseous hyperplasia Fibrous hyperplasia Hyperostosis internus Osteogenesis imperfecta Q24. This CT scan – multiple lesions 10HU( parenchymal liver phase) is characteristic of ? : Q24. This CT scan – multiple lesions 10HU( parenchymal liver phase) is characteristic of ? Solid liver metastasis liver cysts hepatoma liver trauma Dilated Ducts Q25. this large left sided abdomen mass may be consistent with ? : Q25. this large left sided abdomen mass may be consistent with ? cyst anuerysm bowel tumour trauma Q 26. This post trauma appearance is consistent with a ? : Q 26. This post trauma appearance is consistent with a ? pneumothorax ruptured trachea ruptured diaphragm spinal fracture Q 27. A pars defect involves which part of the lumbar vertebra? : Q 27. A pars defect involves which part of the lumbar vertebra? - body - lamina - pedicle - spinous process Q 28-This tumour of the VIII nerve could cause the patient? : Q 28-This tumour of the VIII nerve could cause the patient? Speech difficulties visual disturbances Loss of hearing Loss of taste Loss of smell Q29- The red arrow indicates which major artery? : Q29- The red arrow indicates which major artery? Common carotid Basilar Vertebral Middle cerebral Q 30 -This L4/l5 disc bulge which compresses the L5 nerve most likely causes the patient- : Q 30 -This L4/l5 disc bulge which compresses the L5 nerve most likely causes the patient- groin pain posterior thigh pain anterior thigh pain lateral thigh pain Perineal pain Q31. This CT carotid angiogram produced using dual kV is an example of which rendering technique ? : Q31. This CT carotid angiogram produced using dual kV is an example of which rendering technique ? VR MIP MPR MinIP Q32. The black in this lumbar disc( known as vacuum phenomena )is what type of gas? : Q32. The black in this lumbar disc( known as vacuum phenomena )is what type of gas? Oxygen Carbon dioxide Nitrogen Hydrogen Helium Q33. This CT angiogram shows a calcified aneurysm. It is related to which artery? : Q33. This CT angiogram shows a calcified aneurysm. It is related to which artery? gastric renal inferior mesenteric Splenic hepatic Q 34. This fracture / dislocation of the elbow involves which bone ? : Q 34. This fracture / dislocation of the elbow involves which bone ? ulnar humerus radius None of the above Q 35.The red arrow indicates which carpel bone ? : Q 35.The red arrow indicates which carpel bone ? scaphoid hamate lunate triquetral capitate trapezium Q 36 – Which area( A,B,C,D) is known as Broca's area ? ( in a right handed person) : Q 36 – Which area( A,B,C,D) is known as Broca's area ? ( in a right handed person) Q37. This occipital lobe infarct would most likely cause? : Q37. This occipital lobe infarct would most likely cause? speech difficulties motor disturbances visual difficulties sensation changes loss of balance Q38. Apart from the cholylithiasis, what is the other “life threatening” abnormality? : Q38. Apart from the cholylithiasis, what is the other “life threatening” abnormality? Fatty liver Renal calculus Aortic dissection Stomach tumour Q39- This coronal pulmonary angiogram slice image is an example using which rendering technique? : Q39- This coronal pulmonary angiogram slice image is an example using which rendering technique? MIP Min IP MPVR VR SSD Q40. If you have a Schwannoma. Which tissue type is it related to? : Q40. If you have a Schwannoma. Which tissue type is it related to? Heart Lung Arteries Veins Nerves- Schwann cells THE END : THE END THE WINNER WILL BE ANNOUNCED IN THE NEXT SESSION Slide 44: References Blakiston’s Gould Medical Dictionary 4th Ed Euclid Seeram, Computed Tomography – A study Guide and Review www.arpansa.org.au F. Netter. Interactive atlas of human anatomy ver2.0( DVD) M R Dean. Basic Anatomy and Physiology for Radiographers

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