LWBK1006-15 LWW-Govindan-Review December 7, 2011 19:5
Chapter 15•Advances in Diagnostics and Intervention 165Question 15.19. Regarding concepts of hepatic embolization, which is NOT true?
A. Coils provide an effective hepatic embolization technique.
B. The hepatic artery provides greater blood supply to hepatic tumors
than the portal vein.
C. Hypervascular lesions are more sensitive to ischemia than hypovas-
cular lesions.
D. For neuroendocrine tumors, therapy is often aimed at symptomatic
relief.
E. Postembolization symptoms are often self-limited.Question 15.20. Regarding transarterial chemoembolization for patients with hepatocel-
lular carcinoma, which of the following is NOT an absolute contraindi-
cation?
A. Child-Pugh C cirrhosis
B. Total bilirubin of 5 mg/dL
C. Mild encephalopathy
D. Poor performance status
E. radiofrequency ablation (RFA) AND alcohol injection ablation (PEI)
are usually reserved for larger tumors (>7cm)Question 15.21. Regarding the variety of imaging modalities, which is NOT true?
A. Bone magnetic resonance imaging (MRI) has essentially replaced
radiography for the evaluation of osseous lesions.
B. Sonography may be used for the evaluation of chest lesions.
C. Multidetector computed tomography (MDCT) has resulted in
improved temporal resolution in cross-sectional imaging.
D. MRI has the advantage of functional analysis.
E. Both MDCT and MRI allow for high-quality multiplanar imaging.Question 15.22. Regarding nuclear medicine studies, which is TRUE?
A. Increased number of images results in increased radiation dose.
B. Bone scintigraphy is a good screening for bone metastases from
prostate cancer when the prostate-specific antigen (PSA) is less than 5.
C. Sentinel node mapping is of no value in the staging of melanoma.
D. Positron emission tomography (PET)/CT relies on spiral CT for its
attenuation correction.
E. Single-photon emission computed tomography relies on injection of
fluorodeoxyglucose (FDG) for diagnosis.