SPIRAL VERSUS CONVENTIONAL CT IN ROUTINE EXAMINATIONS OF THE NECK

Citation
J. Spreer et al., SPIRAL VERSUS CONVENTIONAL CT IN ROUTINE EXAMINATIONS OF THE NECK, Journal of computer assisted tomography, 19(6), 1995, pp. 905-910
Citations number
19
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Radiology,Nuclear Medicine & Medical Imaging
ISSN journal
0363-8715
Volume
19
Issue
6
Year of publication
1995
Pages
905 - 910
Database
ISI
SICI code
0363-8715(1995)19:6<905:SVCCIR>2.0.ZU;2-K
Abstract
Objective: Our goal was to optimize the efficiency of contrast materia l (CM) application in routine examinations of the neck by the use of s piral CT and slow power injection. Materials and Methods: Dynamic stud ies were performed in 14 patients to establish a set protocol for spir al CT examinations of the neck. Prospectively, 100 patients were exami ned either by use of the spiral technique with 100 ml CM (30 g iodine) injected in two phases or in conventional CT with 150 ml CM (45 g iod ine). Vascular and parenchymal enhancement was evaluated at three dist inct levels of the neck. Results: Despite the reduced CM volume in spi ral CT, vascular enhancement was significantly higher at all three lev els. Parenchymal enhancement was comparable in both groups. CM exploit ation in vascular opacification (ratio of mean enhancement to applied CM volume) was 0.87 in spiral CT compared with 0.43 in conventional CT . Conclusion: Spiral CT significantly increases the efficiency of CM a pplication and is well suited for routine examinations of the neck.