File 22 Flashcards
MR sequence for ejection fraction?
A) First pass perfusion
B) Steady state
C) Double inversion T1
B) Steady state
Answer: B
Notes:
- Steady state → Functional assessment.
- Double inversion T1 → Structural assessment.
CT scan of the wrist for evaluation of subtle fracture, there is undesirable
noise. What to do?
A) Decrease kVp
B) Decrease mAs
C) Decrease slice thickness
D) Use ultra-sharp kernel algorithm
D) Use ultra-sharp kernel algorithm
Answer: D
Notes:
- If there is a lot of soft tissue → ↓ KvP → ↓ Dose → ↑ absorption → ↑ contrast.
- ↓ Slice thickness → ↑ noise.
- ↓ mAs → ↓ photons.
Intrinsic resolution of gamma camera is 5 lp/mm and external
collimation is 10 lp/mm. What is the total system resolution?
A) 15 mm
B) 11.2 mm
C) 7.5 mm
D) 5 mm
B) 11.2 mm
Answer: B
Notes:
- Systemic resolution = (10x10) + (5x5) = 100 + 25 = 125 = 11.2 x 11.2 = 125.
Right ureter in relation to the 3rd part of duodenum?
A) Anterior
B) Posterior
C) Middle
D) Lateral
B) Posterior
All vessels are anterior to the right ureter except CIA which is posterior.
Patient with leukemia post treatment with neutropenia. CT shows
multiple hypodense lesions in the liver and spleen. What is the most likely diagnosis?
A) Candidiasis
B) Aspergillosis
C) Gaucher
A) Candidiasis
Which of the following is a sign of intraperitoneal air in the supine xray?
A) Double bubble
B) Triple bubble
C) Air under diaphragm with air fluid level
D) Football sign with continuous diaphragm
D) Football sign with continuous diaphragm
PET detects:
A) Electron
B) Proton
C) Annihilation photon
D) Neutron
C) Annihilation photon
Pediatric patient with pituitary stalk mass?
A) Glioma
B) Lymphoma
C) Sarcoidosis
D) Langerhans cell histiocytosis
D) Langerhans cell histiocytosis
Answer: D
Notes:
- √ Langerhans cell histiocytosis
- √ 2ɴᴅ Glioma
Right adrenal vein drains into:
A) Right renal vein
B) Right gonadal vein
C) IVC
C) IVC
Answer: C
Notes:
- The left adrenal vein drains into the left renal vein.
- The right adrenal vein drains into the IVC.
Vessels in the Gastrosplenic ligament are:
Answer: Short gastric artery and left gastroepiploic artery
Female patient complaining of left flank pain, with history of hysterectomy. What do to next?
A) Cystogram
B) Kidney US
C) CXR
D) KUB X-ray
B) Kidney US
- US to rule out ureterovaginal fistula, stones, and hydronephrosis.
Postmenopausal woman with vaginal bleeding, what is the first step?
A) Pelvic US
B) Hyserosongram US
A) Pelvic US
Answer: A
Notes:
- √ TVUS
Patient for stress test, which of the following interferes with adenosine
(what to stop)?
A) Metformin 48 hrs. before the exam
B) Caffeine 12 hrs. before
C) Iodine 3 weeks
B) Caffeine 12 hrs. before
Doppler shift ultrasound is greater at which angle?
A) -45
B) 0
C) 45
D) 90
B) 0
Elderly patient with history of brainstem infarction, CT shows right
middle lobe bronchiectasis. How to perform upper GI study?
A) Do the exam in upright position with barium given by spoon
B) Use thick barium
C) Use Gastrografin
D) Refuse the study because it is not indicated
A) Do the exam in upright position with barium given by spoon
Brainstem infarction affects swallowing.
