Temporal Subtraction Technique for Detection of Subtle Anomalies on Temporally Sequential Bone-subtracted Chest Radiographs by Energy Subtraction
نویسندگان
چکیده
منابع مشابه
[Development of temporal subtraction method for chest radiographs by using pixel matching technique].
A temporal subtraction image, which is obtained by subtraction of a previous image from a current one, can enhance interval changes on a chest radiograph by removal of most normal structures. However, subtraction artifacts, which tend to reduce its effectiveness in the detection of interval changes, were still included in the conventional method. In this study, we have developed a pixel matchin...
متن کاملTemporal subtraction of chest radiographs compensating pose differences
Temporal subtraction techniques using 2D image registration improve the detectability of interval changes from chest radiographs. Although such methods are well known for some time they are not widely used in radiologic practice. The reason are strong pose differences between these follow-up acquisitions with a time interval of months to years in between. Such strong perspective differences occ...
متن کاملTemporal subtraction for detection of solitary pulmonary nodules on chest radiographs: evaluation of a commercially available computer-aided diagnosis system.
PURPOSE To evaluate the usefulness of a commercially available computer-aided diagnosis (CAD) system that incorporates temporal subtraction for the detection of solitary pulmonary nodules on chest radiographs by readers with different levels of experience. MATERIALS AND METHODS Sixty pairs of chest radiographs in 30 patients with newly detected solitary pulmonary nodules and 30 normal cases, ...
متن کاملComparison of dual-energy subtraction and electronic bone suppression combined with computer-aided detection on chest radiographs: effect on human observers' performance in nodule detection.
OBJECTIVE The objective of our study was to compare the effect of dual-energy subtraction and bone suppression software alone and in combination with computer-aided detection (CAD) on the performance of human observers in lung nodule detection. MATERIALS AND METHODS One hundred one patients with from one to five lung nodules measuring 5-29 mm and 42 subjects with no nodules were retrospective...
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T he most important physical parameter limiting the diagnostic performance achieved with radiographic images is the signal-to-noise ratio (SNR). In most dental applications, the normal anatomical structures contribute to a background pattern in the image that is limiting the SNR attainable. Hence, the projection direction of radiographs is a fundamental determinant of the SNR. The acquisition o...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 2000
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00001356842