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1) Three-dimensional CT angiography (3D-CTA) for cerebral vascular has acquired highly reputation for its usefulness among radiologists and doctors. Three-dimensional CT angiography (3D-CAT) of cerebral vascular region is highly evaluated among radiologists and doctors. 2) Shape reappearance of vessels depends heavily on its contrast enhancement technique, different contrast enhancement among each individual, and scan technique. The shape reappearance of vessels depends greatly on the contrast enhancement technique, and scan technique. 3) From the experiments, it is concluded that better shape reaearance of cerebral vascular should be gained through the following scan and contrast enhancement technique The results showed that a better shape reappearance of the cerebral vascular region could be obtained through the following scan and contrast enhancement technique. 4) The dimensional variance of the CT value was abated after using compensation software. Dimensional variance of the CT value abated after using compensation software. 5) Using radiosurgery with CADPLAN system, we examined the difference of dose-volume distribution between 10MV and 4MV photon beams, and between non-coplanar and single plane techniques each other. We examined the difference in dose-volume distribution between 10MV and 4MV photon beams, between non-coplanar and single plane techniques in radiosurgery using the CADPLAN system. 6) As a result, we concluded that 3-D image becomes clear when Hunsfield Unit is over 300 HU. The result showed that 3-D images are clearer when the Hunsfield unit is over 300 HU. 7) We developed a new data filing system for the high-speed data transmission, easy operation, large capacity for storing the data, and its back-up. We developed a new data filing system for high-speed data transmission, which can be operated easily and has a large capacity for data storage, as well as s back-up system. 8) In addition, we constructed a comprehensive data base system of the patients, inclusive of their conventional or video images $B!A(J . We also constructed a comprehensive data base system for patients, which includes on-line conventional video images $B!A(J. 9) After measuring the weight and thickness of a cassette in order to make efficient work, we decided to make a pack from a vinyl resin, and inserted IP (Imaging Plate) into pack (hereafter described as IP pack). After measuring the weight and thickness of a cassette, in order to make the system more efficient, a pack was made from vinyl resin, and an imaging plate (IP) was inserted into pack (IP pack). 10) We compared IP pack with a cassette about our working time and workload, and discussed that. And besides, 20 radiological technologists in our hospital answered its evaluating questionnaire. The efficiency of the IP pack and cassettes were compared in terms of working time and work load. An evaluation questionnaire was also answered by 20 radiological technologists in our hospital. 11) As a result, by using the IP pack we have proved that our working time and workload reduced and portable rediography became efficient. The results showed that the IP pack effectively reduced working time and work load, thus making portable radiography more efficient. 12) All of them can be observed in any planes or from any directions. These 3-D images allow observation in any planes or from any directions. 13) A supplementary tool for taking a chest lateral view in FCR 7501 Image Reader (CR-IR) practically leaves some points to be desired: its shape like the letter `P', a difficult operation in the height-adjusting to each patient, and no fittings to fix in the direction of horizon. The supplementary tool used for taking a lateral view of the chest by a FCR 7501 Image Reader (CR-IR) requires some improvements. Its `P' shape makes height adjustment for each patient difficult, and it has no fittings to fix in a horizontal direction. 14) Which always made us feel uneasyness of patients' falling while taking a picture. When using this tool, there is risk of the patient falling the picture is being taken. 15) We could obtain good results that the apex of the lung was depicted more clerly on the X-ray films and the tortion of the patient's body also reduced greatly. The results of tests using our new tool showed that the apex of the lung could be depicted more clerly on X-ray films, and that tortion of the patient's body was also grealty reduced. 16) In the examination of the magnetic resonance angiography used for 2 dimensional time of flight method (2D-TOF MRA), it is said to be going to be overestimated the area of stenosis than actually. The two-dimensional time of flight method in magnetic resonance angiography (2D-TOF MRA) is said to overestimate the actual area of stenosis. 17) In a clinical case, the examination of 2D-TOF MRA indicated the higher rate of stenosis than the angiography, and there was no regularity of each case concerning the length of stenosis. In clinical cases, we found that the stenosis rate of 2D-TOF MRA was higher than that of angiography, and its length had no regularity in either. 18) If we make erroneous early diagnosis, collapse of the femoral head will frequently progress in a few years. An early misdiagnosis might lead to the collapse of the femoral head in a few years. 19) The management program was developed with the data base software (dBASE$B-7(J PLUS) in the department of radiology. We developed a management program using the data bese software (sBASE$B-7(J PLUS) in the department of radiology. 20) According to the chi-square test, there were significant for $B!D!D(J . The chi-square test showed that significant differences was $B!D!D(J .
21) (TPOAb positive was 9.8% and MCHA positive was 8.6%. TgAb positive was 7.3% and TGHA positive was 4.0%. $B!D!D(J . Only TGHA positive was 1.4% among both TGHA and MCHA positive subjects, while only TgAb was 17.8% among both TgAb and TPOAb positive subjects. Only TGHA positive accounted for 1.4% among the subjects of both TGHA and MCHA positive, while onlyTgAb positive occupied 17.8% of both TgAb and TPOAb positive. 22) Potential benifits and suitability of two image processing technique (SSD method, MIP method) on CNS studies were investigated. We investigated the potential benifits and suitability of two image processing techniques (SSD method and MIP method) on CNS studies.
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1.$B0e3XO@J8$N=q$-J}(J $BBh(J4$BHG(J $BEDCf7i(J $B0e3X=q1!(J 1991
2.$B$&$^$$1Q8l$G0e3XO@J8$r=q$/%3%D(J $B?"B<8&0l(J $B0e3X=q1!(J 1991
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$B!!;%KZ0e2JBg3X0e3XItIUB0IB1!J|
Pancreatic versus Hapatic Phase Enhancement of Tumor, Pancreas, and Vasular Structures
David S. K. Lu, MD. Suresh Vedantham, MD
(Radiology 1996; 199: 697-701)
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David F. Yankelevitz, MD et al.
(Radio Graphics 1996; 16: 1073-1084)
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