CT arterio-portography in the assessment of hepatic metastasis


Question Number 1534

Question:
the following are true of CT arterio-portography in the assessment of hepatic metastasis

a) a prior ultrasound should be performed
b) is usually achieved by injection through the celiac artery
c) perfusion defects are common in the caudate lobe
d) a detected lesion is unlikely to be a hemangioma if it subsequently demonstrates sequential higher intensities on increasingly T2 weighted images
e) is superior to intra-operative ultrasound in characterising lesions less than 1cm in size


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