Radiology
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To determine retrospectively whether addition of gadolinium-enhanced T1-weighted magnetic resonance (MR) sequence to T2-weighted turbo spin-echo (SE) MR imaging is valuable for preoperative assessment of T stage and circumferential resection margin in patients with primary rectal cancer. ⋯ Gadolinium-enhanced MR sequences did not improve diagnostic accuracy for assessment of tumor penetration through rectal wall and tumor extension into mesorectal fascia.
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Comparative Study
Acute lung injury: effects of prone positioning on cephalocaudal distribution of lung inflation--CT assessment in dogs.
To quantify cephalocaudal gradient of lung inflation in acute lung injury in a dog model in prone versus supine position. ⋯ In acute lung injury, prone positioning induced more uniform distribution of gas and tissue along cephalocaudal axis by reducing cephalocaudal inflation gradient.