[Volumetric dynamic computed tomography angiography in the topical diagnosis of sporadic insulinomas].

The authors analyzed the data of contrast-enhanced multislice spiral computed tomography (MSCT) angiography versus those of volumetric dynamic computed tomography, percutaneous and endoscopic ultrasonography, selective angiography, and arterial stimulation blood sampling in the diagnosis of sporadic insulinomas depending on the size and site of the tumor. Forty-five patients (25 women and 20 men) aged 20 to 55 years (mean age, 43.4 +/- 2.8 years) with characteristic clinical symptoms and Whipple's triad, were examined. These were found to have 45 sporadic insulinomas that were located in the head and isthmus (n = 13 (28.9%)), body (n = 19 (42.2%)), and tail (n = 13 (28.9%)). The insulinomas measured 4.0 to 10.0 mm (mean size, 6.5 +/- 2.1 mm) (n = 9), 11.0 to 20.0 mm (mean size, 13.2 +/- 2.5 mm) (n = 23), and 21.0 to 25.0 mm (mean size, 22.6 +/- 2.8 mm) (n = 13). Volumetric dynamic CT angiography increases detection rates for tumors less than 1.0 cm in size to 77.8%. It enabled insulinomas to be localized in 82.2% of cases.

[Multispiral computed tomography in diagnosis of remote complications following surgical interventions in obliterating diseases of lower limb arteries].

Multispiral computed tomography opened new horizons in diagnosis of vascular pathology. The study was aimed at evaluating the significance of MSCT in diagnosis of complications following major and minor surgical interventions for obliterating diseases of the lower-limb arteries, using the findings of the intraoperative revision as a reference method. Each of the 68 examined patients underwent MSCT (4-spiral unit) and duplex scanning. The obtained findings suggest a high informative value of MSCT, hence making it possible to recommend it for use as an alternative means of the routinely used roentgen-contrast angiography.