Chest Radiography using Patient-Specific Digitally-Prepared Compensating Filters

Bruce H. Hasegawa; Shaikh Naimuddin; James T. Dobbins III; Charles A. Mistretta; Walter W. Peppler; Nicholas J. Hangiandreou; Jack T. Cusma; John C. McDermott; Bakki V. Kudva; Kenneth M. Melbve

doi:10.1117/12.949502

19 September 1985 Chest Radiography using Patient-Specific Digitally-Prepared Compensating Filters

Bruce H. Hasegawa, Shaikh Naimuddin, James T. Dobbins III, Charles A. Mistretta, Walter W. Peppler, Nicholas J. Hangiandreou, Jack T. Cusma, John C. McDermott, Bakki V. Kudva, Kenneth M. Melbve

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Proceedings Volume 0555, Medical Imaging and Instrumentation '85; (1985) https://doi.org/10.1117/12.949502
Event: Medical Imaging and Instrumentation '85, 1985, Boston, United States

Abstract

We have used a prototype digital beam attenuator (DBA) system to generate patient-specific digitally-prepared compensating filters for chest radiography of a human subject. The compensated radiographs demonstrate substantially more information in areas such as the mediastinum and upper abdomen which normally are underpenetrated in conventional chest radiographs. The compensated image was acquired with high contrast, high speed film-screen receptors improving the visibility of pulmonary parenchymal detail while minimizing patient radiation exposure. Currently we are limited by a two-hour preparation time and position the attenuator manually. We are developing a second generation DBA system featuring fast (15 second) fabrication times and automatic positioning of the attenuator. We expect that these features will relieve some of the misregistration errors present in our initial examination.

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Bruce H. Hasegawa, Shaikh Naimuddin, James T. Dobbins III, Charles A. Mistretta, Walter W. Peppler, Nicholas J. Hangiandreou, Jack T. Cusma, John C. McDermott, Bakki V. Kudva, and Kenneth M. Melbve "Chest Radiography using Patient-Specific Digitally-Prepared Compensating Filters", Proc. SPIE 0555, Medical Imaging and Instrumentation '85, (19 September 1985); https://doi.org/10.1117/12.949502

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KEYWORDS

Attenuators

Radiography

Chest

Chest imaging

Human subjects

X-rays

Receptors

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