@article{oai:nagoya.repo.nii.ac.jp:00016575,
 author = {TAKEUCHI, AKIRA},
 issue = {3-4},
 journal = {Nagoya Journal of Medical Science},
 month = {Mar},
 note = {In order to take an axial transverse tomogram having few obstructive shadows, the phantom and human experiment were perfomed and studied. Thorax cage phantom composed of ribs made of lead wire was laid on the table of axial transverse tomograph of horizontal type and the axial trans- verse tomograms were taken with the central X-ray of caudalocranial or crania- caudal direction with the range of rotation of 180°, rotating from the right, front and left side of the body. Obstructive shadow arose mostly when projected caudalocranial direction of central X-ray, while fairly few when taken with craniocaudal direction. With exposure of full rotation of 360°, the obstructive shadow was more faint than the above two. This was confirmed also with the human experiment.},
 pages = {509--516},
 title = {Obstructive Shadow of Ribs Imaged on the Axial Transverse Tomogram of the Chest},
 volume = {31},
 year = {1969}
}