WebA triple-phase protocol that included an early arterial phase, a late arterial phase, and a portal venous phase was performed. Images were analyzed separately by three radiologists to document the presence and number of HCC nodules. WebDec 7, 2024 · Screening is typically performed using ultrasonography (US), with or without serum alpha-fetoprotein (AFP) measurement, generally every 6 months. AFP is elevated …
Triple-phase MDCT of liver: Scan protocol modification to obtain ...
Webperforming a multiphase study such as a triple-phase liver or pancreas protocol, instruct the patient to try to take the same sized breath with each scanning phase. With 16 slice scanners and above, quite shallow breathing may be best approach. ORAL CONTRAST Positive oral contrast is usually dilute iodinated contrast or barium (1 - 3% ... Webb. Slices extend from dome of liver to inferior aspects of liver and pancreas c. Goal parameters i. Slab slices <= 3 mm 7. Axial T1 VIBE post-contrast x3 (late arterial, portal venous, equilibrium phases) a. Breath holds b. Slices extend from dome of liver to inferior aspects of liver and pancreas c. Goal parameters i. Slab slices <= 3 mm ii. specificity vs sensitivity covid test
CT Protocol Cheat Sheet UW Emergency Radiology - University of …
WebMODIFIED PROTOCOL: • Weight based contrast dose (1.7 mL/kg) • Faster injection rate (5 mL/s) • Late arterial phase (20 s) Results: Modified Protocol CLINICAL PARAMETERS OLD PROTOCOL MODIFIED PROTOCOL p value Number of Patientsn = 49 n = 31 Mean age in years (range)62.5 ±9 (37-86) 62.9 ±7 (51-82) 0.85 Gender Male (%) Female (%) The triple-phase liver CT protocol is a useful examination in the assessment of focal liver lesions, hypervascular liver metastases and endocrine tumors. It involves a dedicated late arterial phase , portal venous phase and delayed phase acquisition. See more For some departments and/or radiologists, a triple-phase may instead be used to refer to an initial non-contrast phase followed by a late arterial and portal venous phases. See more Suspected liver lesions such as hepatocellular carcinoma, focal nodular hyperplasia, adenoma, and hemangioma. Differentiating liver lesions on non-contrast studies is … See more specificity used in a sentence