Four-channel multidetector CT in facial fractures: do we need 2 x 0.5 mm collimation?

Objective: Our aim was to optimize acquisition protocols and multiplanar reformation algorithms for the evaluation of facial fractures using multidetector CT (MDCT) and to determine whether 2 x 0.5 mm collimation is necessary.

Materials And Methods: A cadaveric head with artificial blunt facial trauma was examined using a four-channel MDCT scanner.

Scaphoid fractures: evaluation with high-spatial-resolution US initial results.

Purpose: To evaluate the diagnostic accuracy of high-spatial-resolution ultrasonography (US) in the diagnosis of scaphoid fractures.

Materials And Methods: In 72 hours after acute wrist trauma, 15 consecutive patients were examined for possible scaphoid fractures clinically and with conventional radiographs, including scaphoid views. Thereafter, high-spatial-resolution US was performed by two experienced radiologists blinded to the results of the previously performed investigations.

Comparable postoperative pulmonary atelectasis in patients given 30% or 80% oxygen during and 2 hours after colon resection.

Background: High concentrations of inspired oxygen are associated with pulmonary atelectasis but also provide recognized advantages. Consequently, the appropriate inspired oxygen concentration for general surgical use remains controversial. The authors tested the hypothesis that atelectasis and pulmonary dysfunction on the first postoperative day are comparable in patients given 30% or 80% perioperative oxygen.

[The technic of adrenal biopsy. Ultrasound versus CT as the guidance method].

Forty-seven needle biopsies of the adrenal glands have been performed under ultrasound or CT guidance. The aim was to clarify the best guidance method, the best approach, the choice of biopsy needle and possible complications. Analysis of the results provided the following answers: 1.

Percutaneous extraction of centrally embolized foreign bodies: a report of 16 cases.

Sixteen cases of centrally embolized foreign bodies are reported (eight catheter fragments, two guide wires, four pacemaker electrodes, one ventriculo-atrial shunt, one Port-A-Cath catheter). In all patients only the Dormia basket was used. Foreign body extraction was successful in all patients except one, in which removal of a pacemaker electrode from the myocardium failed.