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排序方式: 共有690条查询结果,搜索用时 15 毫秒
11.
Michael T. Corwin MD Ramit Lamba MD John P. McGahan MD 《Journal of magnetic resonance imaging : JMRI》2013,37(4):993-998
Purpose:
To determine if excreted contrast is consistently visualized in the gallbladder and duodenum after a 30‐minute delay using gadoxetate disodium‐enhanced MRI in patients without hepatobiliary disease.Materials and Methods:
Twenty‐two patients without evidence of liver or biliary disease underwent gadoxetate disodium‐enhanced magnetic resonance imaging (MRI) from February 17, 2009 through October 3, 2011. The mean age was 45 years (range 25–72). T1‐weighted hepatobiliary phase images at 5, 10, 20, and 30 minutes after contrast injection were reviewed in consensus by two radiologists to determine the delay at which enhancement of the gallbladder and duodenum first occurred.Results:
Thirteen of 22 (59.1%) patients demonstrated duodenal filling by 20 minutes and 16/22 (72.7%) filled by 30 minutes. The mean time to duodenal enhancement was 19.9 minutes (range 11.4–30.2 min). Seventeen of 22 (77.3%) patients demonstrated gallbladder filling by 20 minutes and 21/22 (95.5%) filled by 30 minutes. The mean time to gallbladder enhancement was 16.5 minutes (range 4.4–30.2 min).Conclusion:
A significant number of normal patients do not show duodenal filling by 30 minutes, while the majority fill the gallbladder by 30 minutes using functional MR cholangiography (fMRC) with gadoxetate disodium. These findings will guide fMRC protocol design for patients with suspected acute cholecystitis and sphincter of Oddi dysfunction. J. Magn. Reson. Imaging 2013;37:993–998. © 2012 Wiley Periodicals, Inc. 相似文献12.
P. Funch-Jensen P. Diederich K. Kraglund 《Scandinavian journal of gastroenterology》2013,48(7):931-936
In seven patients operated on with cholecystectomy for simple gallstones, sphincter of Oddi manometry was performed during surgery. The sphincter was localized as a zone with elevated base-line pressure and phasic contractile activity. Mean value of the amplitude was 90 mm Hg; wave duration, 4 sec; frequency, 5/min; and base-line pressure, 10 mm Hg. No activity was seen in the antrum or duodenum. The plotting of peak-to-peak intervals in a histogram showed that these were evenly distributed around 6 sec or at integrated multiples of this value. This indicates that the sphincter of Oddi is paced. The origin of the pacing is not yet established. 相似文献
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Torahiko Takeda Hiroki Tohma Junichi Yoshida Gen Naritomi Hiroyuki Konomi Zhou-Lu Deng Naoko Kinukawa Masao Tanaka 《Journal of gastroenterology》1998,33(6):860-863
The relationship between sphincter of Oddi pressure and the morphological structure of the sphincter was studied in eight
dogs prepared with a duodenal cannula. Sphincter of Oddi manometry was performed in awake animals in three directions, ventral,
left dorsal, and right dorsal, using a catheter with three radial side holes for recording at one level. The pressure in the
ventral direction (26.6 ± 1.06 mmHg) (mean ± SEM) was significantly lower than that in the left and right dorsal directions
(30.6 ± 1.42 and 31.2 ± 1.23 mmHg, respectively). This functional manometric difference in the three directions correlated
closely with the morphological structure of the sphincter of Oddi; the sum of the thickness of the sphincter of Oddi muscle
and duodenal proper muscle was greater on the dorsal than on the ventral side. To our knowledge, this is the first report
of axial asymmetry in sphincter of Oddi pressure.
(Received May 27, 1997; accepted April 24, 1998) 相似文献
15.
Thomas A. Ruffolo Stuart Sherman Dr. Glen A. Lehman MD Robert H. Hawes 《Digestive diseases and sciences》1994,39(2):289-292
Theoretically, relative distal common bile duct obstruction due to sphincter of Oddi dysfunction may be a cause of poor gallbladder evacuation observed on quantitative cholescintigraphy. In this study, the relationship of sphincter of Oddi dysfunction to the gallbladder ejection fraction by quantitative cholescintigraphy was explored. Eighty-one patients with biliary-type pain and otherwise normal evaluations underwent quantitative cholescintigraphy, sphincter of Oddi manometry, and ERCP. Abnormalities of stimulated quantitative cholescintigraphy and/or sphincter of Oddi manometry were present in 70% of this study group. Manometric evidence of sphincter dysfunction was present in patients with similar frequency irrespective of the degree of gallbladder evacuation. In conclusion, abnormalities of quantitative cholescintigraphy and sphincter manometry appear to be independent factors, although frequent findings in this patient population. 相似文献
16.
Takashi Hanzawa Tadao Matsunaga Tomoyuki Koike Atsushi Kanno Atsushi Masamune Katsunori Iijima 《Minimally invasive therapy & allied technologies》2018,27(4):226-232
Introduction: Although measuring the pressure of the sphincter of Oddi and the bile duct is considered to be an important examination, called Sphincter of Oddi manometry (SOM), some complications related to the SOM device remain unsolved.Material and methods: To decrease adverse complications, we developed a 0.46?mm manometry and we performed some in vitro studies.Results: We successfully developed a 0.46?mm SOM. The diameter is the thinnest size used in endoscopic examinations. The results of in vitro studies show the suitability as SOM.Conclusion: This device will decrease the risks related to SOM examination. To confirm the safety and feasibility, further studies including in vivo studies will be needed. 相似文献
17.
Delhaye M Matos C Arvanitakis M Deviere J 《World journal of gastroenterology : WJG》2008,14(7):1027-1033
Acute recurrent pancreatitis is a clinical entity largely associated with pancreatic ductal obstruction. This latter includes congenital variants, of which pancreas divisum is the most frequent but also controversial, chronic pancreatitis, tumors of the pancreaticobiliary junction and sphincter of Oddi dysfunction. This review summarizes current knowledge about diagnostic work-up and therapy of these conditions. 相似文献
18.
Clifford Simmang M.D. Elisa H. Birnbaum M.D. Ira J. Kodner M.D. Robert D. Fry M.D. Dr. James W. Fleshman M.D. 《Diseases of the colon and rectum》1994,37(11):1065-1069
PURPOSE: This study was designed to determine whether advancing age affects outcome after anal sphincter reconstruction. METHOD: Anal sphincter reconstruction, performed on patients 55 years of age and older, was reviewed to determine if functional outcome was adversely affected by advancing age. A subgroup of patients was studied with anal manometry before and after repair and with pudendal nerve terminal motor latency (PNTML) before surgery. Results were compared with a younger group of patients. RESULTS: Between July 1986 and July 1991, 14 patients, ages ranging from 55 to 81, underwent anal sphincter reconstruction using an overlapping muscle repair. Ten patients were incontinent of solid stool and four of liquid stool. Improvement was seen in 13 of 14 patients: 7 (50 percent) complete control, 3 (21 percent) incontinent to flatus, and 4 (29 percent) incontinent to liquid stools (including the patient who failed to improve). Ten patients were studied with a continuous pull-out manometric technique and PNTML: one was not improved. There was minimum change in mean maximum resting pressure (35.0–37.9 mmHg). Mean maximum squeezing pressure increased from 66 to 75 mmHg overall. Patients with complete control had a mean maximum squeezing pressure of 81 mmHg compared with 60 mmHg in patients with residual incontinence. Mean anterior anal sphincter length increased from 2.92 cm to 331 cm. PNTML was normal (2.0±0.2) on one or both sides in all nine patients who improved (average, 2.1). The patient who failed to improve had abnormal nerve function bilaterally (2.4, 2.7). CONCLUSION: Anal sphincter reconstruction can be performed in elderly patients with improvements in the majority of patients. Total control can be achieved by restoring maximum squeezing pressure in a patient with normal pudendal nerve function.Poster presentation at the meeting of The American Society of Colon and Rectal Surgeons, San Francisco, California, June 7 to 12, 1992. 相似文献
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