DETECTION OF CENTRAL VENOUS CATHETERS WHEN USING STORAGE PHOSPHOR RADIOGRAPHY IN INTENSIVE-CARE RADIOLOGY

被引：10

作者：

GALANSKI, M ^{[1
]}

PROKOP, M ^{[1
]}

THORNS, E ^{[1
]}

OESTMANN, JW ^{[1
]}

REICHELT, S ^{[1
]}

HAUBITZ, B ^{[1
]}

MILBRADT, H ^{[1
]}

GRASER, A ^{[1
]}

VERNER, L ^{[1
]}

SCHAEFER, C ^{[1
]}

机构：

[1] MED HSCH HANNOVER, ANASTHESIOL ABT 1, W-3000 HANNOVER 61, GERMANY

来源：

FORTSCHRITTE AUF DEM GEBIETE DER RONTGENSTRAHLEN UND DER NEUEN BILDGEBENDEN VERFAHREN | 1992年 / 156卷 / 01期

关键词：

STORAGE PHOSPHOR RADIOGRAPHY; INTENSIVE CARE RADIOLOGY; IV CATHETERS; ROC STUDY;

D O I：

10.1055/s-2008-1032838

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

The aim of the following study was to assess the impact of dose alterations on the detection of catheters. We compared the performance of well-exposed conventional and digital portable chest radiographs in the detection of thin catheters and tested the influences of dose alterations. Portable chest radiographs of 20 patients were obtained with conventional film/screen (FR) and with storage phosphors at 50 % (SR(I), 100 % (SR(N), and 250 % (SR(II) of the conventionally required exposure dose. The region of the mediastinum was subdivided into an average of 18 fields, 50 % of which were superimposed with thin catheter segments. ROC analysis of 11600 observations by 8 readers found only SR(H) equivalent to FR in catheter visualisation. Performance decreased significantly with SR(N) and SR(L). Detection of low contrast catheters was found to be significantly decreased in storage phosphor radiographs obtained with standard exposure dose. A dose reduction is not feasible with current equipment if performance equivalent to conventional radiography is to be achieved.

引用

页码：68 / 72

页数：5

共 11 条

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