当前位置： SCI文献检索 > EUROPEAN JOURNAL OF RADIOLOGY期刊下所有文献 > Real-time interactive virtual endoscopy of the tracheo-bronchial system: influence of CT imaging protocols and observer ability.

Real-time interactive virtual endoscopy of the tracheo-bronchial system: influence of CT imaging protocols and observer ability.

Abstract：

OBJECTIVE:To evaluate the influence of different spiral CT examination protocols suitable for clinical use on image quality and to assess the observer dependence in interactive real-time virtual bronchoscopy. METHODS AND PATIENTS:Real-time perspective volume rendering of the airways in twenty normal patients based on four different spiral CT examination protocols was evaluated by four observers in regard to the order of depictable bronchi. RESULTS:Best results were obtained using an examination protocol with a small beam collimation and a maximum pitch. Depending on the observer's ability to control the fly path and the orientation of the bronchi with respect to the slice plane up to sixth order bronchi could be depicted. Inter-observer variability was up to two branching orders. CONCLUSION:The performance of virtual bronchoscopy strongly depends on the applied CT examination protocol and the observers experience with perspective volume rendering. Both of which have to be taken into account when virtual bronchoscopy is compared with fiberoptic bronchoscopy.

journal_name

Eur J Radiol

journal_title

European journal of radiology

authors

Neumann K,Winterer J,Kimmig M,Burger D,Einert A,Allmann KH,Hauer M,Langer M

doi

10.1016/s0720-048x(99)00088-1

keywords:

subject

Has Abstract

pub_date

2000-01-01 00:00:00

pages

50-4

issue

1

eissn

0720-048X

issn

1872-7727

pii

S0720-048X(99)00088-1

journal_volume

33

pub_type

杂志文章

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