Exposure equalization radiography of the chest: clinical comparison of slit and raster scanning techniques

Scanning equalization radiography (SER) is an improved method of chest imaging. The reason for this improvement is due to the fact that SER optimized film exposure producing more subject contrast and better visualization of anatomic detail. This new system has produced improved diagnostic accuracy on a wide variety of cases by all the tested radiologists. Also, there were fewer false positive errors by each of the radiologists. We found that this improvement in image quality and decrease in diagnostic errors was not related to the image complexity (# of abnormalities /radiograph). Also 11 of the radiologists, regardless of their diagnostic skills had a marked preference for the SER images over the conventional.

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“…The physical principles (1,2) and initial clinical testing (3) of this system have been previously reported.…”

Section: Introductionmentioning

confidence: 99%

Efficacy Of SER In Chest Diagnosis

Wandtke

Plewes

1985

SPIE Proceedings

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Dosimetric characteristics of a digital slot x-ray system giving reduced patient doses

Stavitskii¹,

Mishkinis²,

Volobuev³

et al. 1989

Biomed Eng

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Digital videofluorography for direct digital spot filming of gastrointestinal studies

Steiner

Müeller

Hahn

et al. 1989

Gastrointest Radiol

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Digital videofluorography (DVF) refers to a new computer-aided televised fluoroscopy technique that uses short (10-20 ms) intense pulses of radiation to produce a motion-free latent image, which is then transferred into digital storage. Because gastrointestinal imaging has lagged behind other body systems in the evaluation of digital acquisition, we investigated the potential utility of this technique for direct digital fluoroscopic spot filming of gastrointestinal examinations. In order to assess the level of clinical image quality achieved by this technique, we conducted an observer performance comparison study of digitally acquired and conventional analog 100 mm spot films. Sequentially acquired spot films and digital radiographs of 111 anatomic regions in 60 patients undergoing routine barium and cholangiographic examinations were compared. Evaluation was made of on-line interactive performance as well as side-by-side analysis of digital and analog hard copy images. Parameters evaluated include detection of normal and pathologic features, image contrast, image resolution, and image sharpness. Direct digital and analog spot films were of comparable diagnostic quality in all parameters studied. Added benefits of the digital mode included postprocessing to enhance detail in regions of low contrast and accommodation of a large field of view (14 inch) image intensifier format.

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Exposure equalization radiography of the chest: clinical comparison of slit and raster scanning techniques

Cited by 5 publications

References 12 publications

Efficacy Of SER In Chest Diagnosis

Efficacy Of SER In Chest Diagnosis

Dosimetric characteristics of a digital slot x-ray system giving reduced patient doses

Digital videofluorography for direct digital spot filming of gastrointestinal studies

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