Digital radiography versus conventional radiography in chest imaging:: Diagnostic performance of a large-area silicon flat-panel detector in a clinical CT-controlled study

被引:63
作者
Garmer, M
Hennigs, SP
Jäger, HJ
Schrick, F
van de Loo, T
Jacobs, A
Hanusch, A
Christmann, A
Mathias, K
机构
[1] Staedt Klin Dortmund, Dept Clin Radiol, D-44137 Dortmund, Germany
[2] Univ Dortmund, Ctr Comp, D-44221 Dortmund, Germany
[3] Univ Dortmund, Dept Stat, D-44221 Dortmund, Germany
关键词
D O I
10.2214/ajr.174.1.1740075
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
OBJECTIVE. The objective of this study was to compare the diagnostic performance of a digital large-area silicon flat-panel detector with that of a conventional screen-film system in clinical chest imaging using abnormal findings documented by CT as the reference standard. SUBJECTS AND METHODS. Eighty patients (46 men and 34 women; age range, (91 years; mean age, 63 years) who underwent CT of the chest were examined with the new digital radiography system, which is based on a 43 x 43 cm silicon flat-panel detector, and with a conventional screen-film system, which is used routinely in clinical practice. Posteroanterior and lateral radiographs were obtained. Four radiologists analyzed the digital and conventional images separately for chest abnormalities and rated the images using a five-level scale of confidence; CT was used as the reference standard. Diagnostic value was assessed using receiver operating characteristic curves for each abnormality. RESULTS. No significant differences were found between the area under the receiver operating characteristic curve of the digital and that of the conventional radiography method for almost all investigated criteria. The only exception was mediastinal abnormalities, for which the digital method provided better results than the conventional method (p < 0.05). CONCLUSION. The diagnostic performance of the new large-area silicon flat-panel detector is equivalent or superior to that of the conventional screen-film system for clinical chest imaging and can replace conventional radiography systems. This new technology offers transmission and storage possibilities inherent to digital radiology that would facilitate daily practice and reduce the initial high costs in the long-term.
引用
收藏
页码:75 / 80
页数:6
相关论文
共 29 条
[1]   Chest radiographic image quality: Comparison of asymmetric screen-film, digital storage phosphor, and digital selenium drum systems - Preliminary study [J].
Beute, GH ;
Flynn, MJ ;
Eyler, WR ;
Samei, E ;
Spizarny, DL ;
Zylak, CJ .
RADIOGRAPHICS, 1998, 18 (03) :745-754
[2]   DETECTION OF BULLOUS LUNG-DISEASE - CONVENTIONAL RADIOGRAPHY VS DIGITAL STORAGE PHOSPHOR RADIOGRAPHY [J].
BUCKLEY, KM ;
SCHAEFER, CM ;
GREENE, R ;
AGATSTON, S ;
FAY, J ;
LLEWELLYN, HJ ;
MROSE, HE ;
RUBENS, JR .
AMERICAN JOURNAL OF ROENTGENOLOGY, 1991, 156 (03) :467-470
[3]  
BUSCH HP, 1992, EUR RADIOL, V2, P335
[4]   Principles of digital radiography with large-area, electronically readable detectors: A review of the basics [J].
Chotas, HG ;
Dobbins, JT ;
Ravin, CE .
RADIOLOGY, 1999, 210 (03) :595-599
[5]   DIGITAL CHEST RADIOGRAPHY - COMPARISON OF UNPROCESSED AND PROCESSED IMAGES IN THE DETECTION OF SOLITARY PULMONARY NODULES [J].
CORREA, J ;
SOUTO, M ;
TAHOCES, PG ;
MALAGARI, KS ;
TUCKER, DM ;
LARKIN, JJ ;
KUHLMAN, J ;
BARNES, GT ;
ZERHOUNI, EA ;
FRASER, RG ;
VIDAL, JJ .
RADIOLOGY, 1995, 195 (01) :253-258
[6]   COMPARING THE AREAS UNDER 2 OR MORE CORRELATED RECEIVER OPERATING CHARACTERISTIC CURVES - A NONPARAMETRIC APPROACH [J].
DELONG, ER ;
DELONG, DM ;
CLARKEPEARSON, DI .
BIOMETRICS, 1988, 44 (03) :837-845
[7]   SELENIUM-BASED DIGITAL RADIOGRAPHY OF THE CHEST - RADIOLOGISTS PREFERENCE COMPARED WITH FILM-SCREEN RADIOGRAPHS [J].
FLOYD, CE ;
BAKER, JA ;
CHOTAS, HG ;
DELONG, DM ;
RAVIN, CE .
AMERICAN JOURNAL OF ROENTGENOLOGY, 1995, 165 (06) :1353-1358
[8]  
GLAZER HS, 1994, RADIOL CLIN N AM, V32, P711
[9]   DIGITAL CHEST IMAGING WITH A SELENIUM DETECTOR - COMPARISON WITH CONVENTIONAL RADIOGRAPHY FOR VISUALIZATION OF SPECIFIC ANATOMIC REGIONS OF THE CHEST [J].
HEESEWIJK, HPM ;
NEITZEL, U ;
VANDERGRAAF, Y ;
DEVALOIS, JC ;
FELDBERG, MAM .
AMERICAN JOURNAL OF ROENTGENOLOGY, 1995, 165 (03) :535-540
[10]   Subtle pulmonary disease: Detection with computed radiography versus conventional chest radiography [J].
Ishigaki, T ;
Endo, T ;
Ikeda, M ;
Kono, M ;
Yoshida, S ;
Ikezoe, J ;
Murata, K ;
Matsumoto, M .
RADIOLOGY, 1996, 201 (01) :51-60