Results 241 to 250 of about 147,023 (292)
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Computerized tomography colonography
Expert Review of Anticancer Therapy, 2004First introduced a decade ago, computerized tomography (CT) colonography (virtual colonoscopy) is emerging as an important radiologic investigation for colorectal neoplasia, with diagnostic performance likely exceeding barium enema and comparable with optical colonoscopy.
David, Burling +2 more
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Computerized tomography and encephalography
Neuroradiology, 1977This preliminary paper compares encephalography and computed tomography as regards the duration of the examinations, the technical difficulties and their diagnostic values. Some examples are reported to demonstrate the complementary importance of the two techniques.
G, Ruggiero, L, Sabattini, G, Nuzzo
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Computerized Tomography of the Head
Archives of Otolaryngology - Head and Neck Surgery, 1976To the Editor .—Messina's article on computerized tomography (CT) of the head, which appeared in the September issue of theArchives(102:566-567, 1976) was interesting, but I must disagree with some of his comments and conclusions regarding the use of this examination in diagnosis of acoustic neuromas or cerebellopontine angle lesions.
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Computerized Cranial Tomography
JAMA: The Journal of the American Medical Association, 1977To the Editor.— Fineberg and his associates (238:224-227,1977) consider 19% an upper limit estimate of the marginal contribution of computerized cranial tomography (CCT) to changes in therapeutic plans during routine clinical practice at a teaching hospital.
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International Journal of Cardiac Imaging, 1987
Ultrafast (Cine) CT scanning provides cross-sectional millisecond tomography, and therefore combines digital imaging and high resolution without the need for either cardiac catheterization or any form of ECG gating. Fifty millisecond multilevel scanning at rates of 17 scans per second allows quantitation of left ventricular (LV) function at each ...
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Ultrafast (Cine) CT scanning provides cross-sectional millisecond tomography, and therefore combines digital imaging and high resolution without the need for either cardiac catheterization or any form of ECG gating. Fifty millisecond multilevel scanning at rates of 17 scans per second allows quantitation of left ventricular (LV) function at each ...
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Archives of Pediatrics & Adolescent Medicine, 1976
Computerized axial tomography (CAT), a new method for obtaining tomographic images, is a major advance in diagnostic radiology. Unlike conventional tomographic systems that use film both for the storage and display of transmitted x-rays, CAT makes use of sensitive scintillation detectors to detect x-rays that pass through a body section, and a digital ...
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Computerized axial tomography (CAT), a new method for obtaining tomographic images, is a major advance in diagnostic radiology. Unlike conventional tomographic systems that use film both for the storage and display of transmitted x-rays, CAT makes use of sensitive scintillation detectors to detect x-rays that pass through a body section, and a digital ...
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Computerized tomography in ovarian cancer
Gynecologic Oncology, 1983Sixteen women suffering from ovarian cancer were staged by clinical and pathological means and concomitantly scanned by computed tomographic means. Computed tomography (CT) was found accurate in nine patients. The staging of the disease was upgraded in three patients following the CT examination.
A, Solomon +4 more
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Computerized tomography in Multiple Sclerosis
Journal of Computer Assisted Tomography, 1980Forty-three patients with multiple sclerosis (MS) were examined clinically and with computerized tomography (CT). A total of 80 focal cerebral lesions were predicted by clinical neurologic examination. The CT scans showed foci corresponding to 31 (39%) of the clinically predicted 80 lesions.
T, Reisner, E, Maida
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Resolution in Computerized Tomography
1987In computerized tomography one reconstructs a function in ℝ2 from a finite set of line integrals. The arrangement of the lines is referred to as scanning geometry. In the present paper we shall investigate the possible resolution of various scanning geometries. We say that a scanning geometry has resolution d if functions containing no details of size ≦
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Aliasing artifacts in computerized tomography
Applied Optics, 1979Streaking artifacts in tomographic images reconstructed by the filtered-backprojection algorithm are caused by aliasing errors in the projection data. To show this a computer simulation study was performed in which the transforms of undersampled projections were subtracted from the corresponding transforms when the projection data were taken with a ...
C R, Crawford, A C, Kak
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