Helical CT of the upper airway: normal and abnormal findings on three-dimensional reconstructed images.

Abstract

Imaging

Mucosal Morbidity in Patients With Epidermolysis Bullosa Acquisita

“…The CT scans were done helically (High-Speed Advantage; General Electric Medical Systems, Milwaukee, Wis) during slow inspiration or expiration using a 3-or a 5-mm-section thickness and a helical pitch of 1.0 or 1.3. [23][24][25] The CT scans were processed using a surface-rendering technique (virtual endoscopy) that sculpts away all soft tissues of the neck and produces a 3-dimensional model of the airway contour. 26 Data were displayed on a specialized computer workstation (Indigo 2 Maximum Impact; Silicon Graphics, Mountain View, Calif) capable of interactive manipulation and "fly-through visualization" (ie, simulated endoscopy) of the 3-dimensional models.…”

Diagnostic potential of virtual bronchoscopy: advantages in comparison with axial CT slices, MPR and mIP?

“…Spiral CT provides cross-sectional images with assessment of the size and localization of a tumor [5,7,8] and enables visualization of peribronchiolar morphologic information not available by bronchoscopy [9,10]. Spiral CT allows obtainment of volumetric data during a single breath-hold scanning and the procedure is well tolerated by patients [5,11,12,13,14,15,16,17,18]. Recent studies have shown the feasibility of 3D surface rendering of the tracheobronchial tree and the advantages of using multiplanar reconstructions [12,19].…”

3-Dimensional Computerized Tomography in Follow-up of Patients with Urinary Diversion

“…Besides these positive values, to demonstrate the postoperative anatomy perfectly with these techniques is not always easy. In last years, CT technology advanced tremendously and 3D-CT has gained popularity and wide acceptance in many disciplines including also urology [4][5][6][7]. Spiral CT, allows the source and detectors to radiate continuously in a single direction while X-ray exposure are obtained.…”

“…Although, these techniques give knowledge to the clinician about pathologic conditions and functional quality of the pouch, they may not show the postoperative surgical anatomy perfectly. In last years 3-dimensional computerized tomography (3D-CT) gained a wide acceptance and have been used in many disciplines including urology [4][5][6][7]. In urology, 3D-CT has been commonly used for renal imaging in order to understand the preoperative anatomy better, especially, in partial nephrectomy candidates and renal vascular disease [8,9].…”