Application of longitudinal magnification effect to magnification stereoscopic angiography: a new method of cerebral angiography. 1977

K Doi, and K Rossmann, and E E Duda

A new method of stereoscopic cerebral angiography has been developed which employs 2X radiographic magnification. In order to obtain the same depth perception in the object as with conventional contact stereoscopic angiography, one can made the x-ray exposures at two focal spot positions which are separated by only 1 inch (2.5 cm), whereas the contact technique requires a separation of 4 inches (10 cm). The smaller distance is possible because, with 2X magnification, the transverse detail in the object is magnified by a factor of two, but the longitudinal detail, which is related to the stereo effect, is magnified by a factor of four, due to the longitudinal magnification effect. The small focal spot separation results in advantages such as improved stereoscopic image detail, better image quality, and low radiation exposure to the patient.

UI MeSH Term Description Entries
D011858 Radiographic Magnification Use of optic and geometric techniques to enhance radiographic image quality and interpretation. It includes use of microfocal X-ray tubes and intensifying fluoroscopic screens. Magnification, Radiographic,Magnifications, Radiographic,Radiographic Magnifications
D002533 Cerebral Angiography Radiography of the vascular system of the brain after injection of a contrast medium. Angiography, Cerebral,Angiographies, Cerebral,Cerebral Angiographies

Related Publications

K Doi, and K Rossmann, and E E Duda
November 1987, Radiology,
K Doi, and K Rossmann, and E E Duda
June 1976, AJR. American journal of roentgenology,
K Doi, and K Rossmann, and E E Duda
July 1980, Radiology,
K Doi, and K Rossmann, and E E Duda
January 1981, Cardiovascular and interventional radiology,
K Doi, and K Rossmann, and E E Duda
January 1983, AJNR. American journal of neuroradiology,
K Doi, and K Rossmann, and E E Duda
September 1988, Neurologia medico-chirurgica,
K Doi, and K Rossmann, and E E Duda
January 1956, Acta radiologica,
K Doi, and K Rossmann, and E E Duda
June 1968, Radiology,
K Doi, and K Rossmann, and E E Duda
March 1982, Radiology,
Copied contents to your clipboard!