喉部螺旋CT：与传统CT扫描的对比研究

Helical CT of the larynx: a comparative study with conventional CT scan.

作者信息

Robert Y, Rocourt N, Chevalier D, Duhamel A, Carcasset S, Lemaitre L

机构信息

Service de Radiologie Ouest, Hopital Claude Huriez Chu Lille, France.

出版信息

Clin Radiol. 1996 Dec;51(12):882-5. doi: 10.1016/s0009-9260(96)80088-2.

DOI:10.1016/s0009-9260(96)80088-2

PMID:8972656

Abstract

AIM

To compare helical and conventional CT scans of the larynx.

PATIENTS AND METHODS

Thirty-three patients underwent helical and conventional CT studies of the neck and the larynx using 3 mm section collimation for both studies and a table feed of 4 mm/sec for helical CT. Helical scans were reconstructed at 2 mm increments. Two independent observers rated the visibility of the laryngeal structures from 1 (poor and non diagnostic) to 5 (excellent and diagnostic), and motion artifacts from 1 (> or = 10 degraded scans) to 5 (no motion artifacts).

RESULTS

The motion artifacts score was significantly better for helical CT. No significant difference was observed for the laryngeal structures score between helical and conventional CT studies. The interobserver kappa mean value was 0.756 and 0.68 for helical and conventional CT, respectively.

CONCLUSION

Helical CT can be routinely performed and replace conventional CT study for the evaluation of laryngeal diseases.

摘要

目的

比较喉部的螺旋CT扫描和传统CT扫描。

患者与方法

33例患者接受了颈部和喉部的螺旋CT及传统CT检查，两项检查均采用3mm层厚准直，螺旋CT的床速为4mm/秒。螺旋扫描以2mm增量重建。两名独立观察者对喉部结构的可视性从1分（差且无诊断价值）至5分（优且有诊断价值）进行评分，对运动伪影从1分（≥10次扫描图像质量下降）至5分（无运动伪影）进行评分。