Strotzer, Michael and Gmeinwieser, J. and Volk, M. and Fruend, R. and Feuerbach, S. (1999) Digital flat-panel X-ray technology based on cesium iodide and amorphous silicon: experimental studies and preliminary clinical results. ROFO-FORTSCHRITTE AUF DEM GEBIET DER RONTGENSTRAHLEN UND DER BILDGEBENDEN VERFAHREN, 170 (1). pp. 66-72. ISSN 0936-6652,
Full text not available from this repository. (Request a copy)Abstract
Purpose: Experimental and clinical evaluation of a digital flat-panel X-ray system based on cesium iodide (CsI) and amorphous silicon (a-Si). Methods: Performance of a prototype detector was compared with conventional screen-film radiography (SFR) using several phantom studies. Foreign bodies, fractures, osteolyses, and pulmonary lesions were analyzed. Additionally, 120 patients were studied prospectively, resulting in 400 comparative X-ray studies. The fiat-panel detector was exposed with standard dose and with a dose reduction of up to 75%. Detector size was 15 x 15 cm, pixel matrix was 1 x Ik with a pixel size of 143 mu m. Modulation-transfer function was determined to be 18% at the maximum spatial resolution of 3.5 Ip/mm. Results: The diagnostic results achieved with the digital detector were similar to those of conventional SFR; even at reduced radiation exposure. A potential for dose reduction was observed: 50% with respect to osteoarthrosis and fractures, end 75% for determining bony alignment. Discussion: This new technology can be used in thoracic and skeletal radiography. A significant dose reduction is possible, depending on the suspected disease.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SCREEN-FILM RADIOGRAPHY; SPATIAL-RESOLUTION REQUIREMENTS; COMPUTED RADIOGRAPHY; SKELETAL RADIOGRAPHY; DOSE REDUCTION; DETECTOR; CHEST; ROC; PERFORMANCE; FRACTURES; radiography, digital; radiography, technology; amorphous silicon |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Röntgendiagnostik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 06 Dec 2022 06:59 |
| Last Modified: | 06 Dec 2022 06:59 |
| URI: | https://pred.uni-regensburg.de/id/eprint/48735 |
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