Abstract:
PURPOSE:To compare biliary tract depiction in living potential liver donors at conventional magnetic resonance (MR), mangafodipir trisodium-enhanced excretory MR, and multi-detector row computed tomographic (CT) cholangiography. MATERIALS AND METHODS:Eight living potential liver donors underwent iodipamide meglumine-enhanced CT cholangiography. Eight different potential liver donors then underwent conventional MR cholangiography and mangafodipir trisodium-enhanced excretory MR cholangiography. Two readers independently scored all first-, second-, and third-order biliary branches with a four-point scale from 0 (not seen) to 3 (excellent visualization). Interobserver agreement was calculated by using the weighted kappa statistic. Scores were compared between imaging modalities by using generalized estimating equations. Imaging findings of second-order biliary tract anatomy were compared with intraoperative findings for nine patients. RESULTS:Interobserver agreement for overall biliary tract visualization was good for CT, conventional MR, and excretory MR cholangiography (with weighted kappa values of 0.76, 0.66, and 0.79, respectively). The mean second-order biliary branch visualization scores for readers 1 and 2, respectively, were significantly higher at CT cholangiography (2.81 and 2.75) than at conventional MR (1.84 and 1.75, P <.001), excretory MR (2.00 and 2.06, P <.001), and combined conventional and excretory MR cholangiography (2.31 and 2.25, P <.01). At CT, conventional MR, and excretory MR cholangiography, respectively, second-order biliary branching anatomy was discernible in eight, five, and seven patients, with second-order biliary branch variants seen in three, two, and two patients. Surgical findings confirmed the pattern of second-order biliary branching seen at CT in five patients, that seen at conventional MR imaging in one patient, and that seen at excretory MR cholangiography in three patients. At surgery, one case of variant biliary anatomy was found to have been missed at CT cholangiography. CONCLUSION:In living potential liver donors, CT cholangiography enables significantly better biliary tract visualization than conventional or excretory MR cholangiography either alone or in combination.
journal_name
Radiologyjournal_title
Radiologyauthors
Yeh BM,Breiman RS,Taouli B,Qayyum A,Roberts JP,Coakley FVdoi
10.1148/radiol.2303021775subject
Has Abstractpub_date
2004-03-01 00:00:00pages
645-51issue
3eissn
0033-8419issn
1527-1315pii
230/3/645journal_volume
230pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::Detection of specific tumor sites was studied with scintigraphy and radiolabeled human IgM monoclonal antibodies (MoAbs). Ten patients with metastatic breast cancer received an infusion of one of three indium-111-labeled anti-breast carcinoma MoAbs. The time of infusion ranged from 30 minutes to 2 hours. Three patient...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.167.1.3347750
更新日期:1988-04-01 00:00:00
abstract:PURPOSE:To retrospectively determine if patients with a history of intraoperative bile duct injury or liver transplantation have an increased risk for arterial injury (AI) during percutaneous transhepatic cholangiography (PTC) and percutaneous transhepatic biliary drainage (PTBD) compared with the risk of AI establishe...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2473070529
更新日期:2008-06-01 00:00:00
abstract::Institutional review board approval, with waived consent, was obtained to develop a spine-labeling algorithm with retrospectively obtained deidentified HIPAA-compliant data. An automated magnetic resonance (MR) imaging technique to rapidly survey the entire spine and provide definitive numbering of disks and vertebrae...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2383050456
更新日期:2006-04-01 00:00:00
abstract:PURPOSE:To prospectively assess bone marrow (BM) angiogenesis in patients with acute myeloid leukemia (AML) by using iron oxide-enhanced magnetic resonance (MR) imaging. MATERIALS AND METHODS:The study was institutional ethics committee approved. Informed signed consent was obtained from each study participant. The re...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2421051355
更新日期:2007-01-01 00:00:00
abstract::Purpose To determine the degree of preoperative fatty degeneration within muscles, postoperative longitudinal changes in fatty degeneration, and differences in fatty degeneration between patients with full-thickness supraspinatus tears who do and those who do not experience a retear after surgery. Materials and Method...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2016151789
更新日期:2016-08-01 00:00:00
abstract:PURPOSE:To assess the clinical and radiographic findings of pulmonary infections diagnosed by using invasive means. MATERIALS AND METHODS:Fifty-nine episodes of pulmonary infection were diagnosed in 52 (7.2%) of a consecutive series of 725 adult bone marrow transplant recipients. Causative organisms, time of diagnoses...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.210.3.r99mr39699
更新日期:1999-03-01 00:00:00
abstract::Epidemiologic data were obtained to evaluate potential risks from exposure to the static and time-varying magnetic fields used in magnetic resonance (MR) imaging. A questionnaire sent to women workers in more than 90% of clinical MR facilities in the United States addressed menstrual-reproductive experiences, work act...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.187.2.8475280
更新日期:1993-05-01 00:00:00
abstract::The pulmonary manifestations of blastomycosis were observed in 51 patients and correlated with their location in the lungs and the clinical appearance of the patient. Blastomycosis is primarily an airbone infection that occurs in both acute and chronic forms and follows a specific pathway within the lungs. It must be ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/120.1.25
更新日期:1976-07-01 00:00:00
abstract:PURPOSE:To determine the feasibility and accuracy of a protocol for calculating whole-organ renal perfusion (renal blood flow [RBF]) and regional perfusion on the basis of biphasic computed tomography (CT), with concurrent dynamic contrast material-enhanced (DCE) CT perfusion serving as the reference standard. MATERIA...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2015142757
更新日期:2016-04-01 00:00:00
abstract::Two patients with large arteriovenous malformations (AVM) were successfully treated by transcatheter selective arterial embolization with Gelfoam. An extensive lumbar retroperitoneal acquired AVM was markedly reduced, eliminating any clinical evidence of a persistent left-to-right shunt. A large localized congenital A...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/15.3.609
更新日期:1975-06-01 00:00:00
abstract:PURPOSE:To assess methods of standard uptake ratio (SUR) calculation with 2-deoxy-2-[fluorine-18]fluoro-D-glucose (FDG) positron emission tomography (PET) in indeterminate focal pulmonary abnormalities. MATERIALS AND METHODS:One hundred ninety-seven adult patients with indeterminate pulmonary abnormalities had complet...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.202.2.9015070
更新日期:1997-02-01 00:00:00
abstract::Purpose To evaluate an objective computed tomographic (CT) criterion for distinguishing between part-solid (PS) and nonsolid (NS) lung nodules. Materials and Methods This study received institutional review board approval, and patients gave informed consent. Preoperative CT studies in all patients who underwent surger...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2017170044
更新日期:2018-01-01 00:00:00
abstract::An improved catheter for pulmonary arteriography via the antecubital approach is described. The catheter has been used successfully in 56 patients. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.163.1.3823450
更新日期:1987-04-01 00:00:00
abstract:PURPOSE:To compare various subjective, empiric, and pharmacokinetic methods for interpreting findings at dynamic magnetic resonance (MR) imaging of the breast. MATERIALS AND METHODS:Dynamic spiral breast MR imaging was performed in 52 women suspected of having or with known breast disease. Gadolinium-enhanced images w...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.209.2.9807580
更新日期:1998-11-01 00:00:00
abstract::Computed tomography has been utilized to guide a needle into central nervous system lesions as small as one centimeter in diameter. Direct puncture has drained many abscesses effectively, provided material for immediate Gram stain and subsequent culture, and permitted irrigation with appropriate antibioties, Multilocu...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/131.3.681
更新日期:1979-06-01 00:00:00
abstract:PURPOSE:To determine if a symptomatic accessory navicular bone, a normal variant, displays a pattern of altered signal intensity on magnetic resonance (MR) images indicative of an abnormality that could account for the patient's foot pain. MATERIALS AND METHODS:Both feet were imaged in seven patients with an accessory...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.195.3.7754020
更新日期:1995-06-01 00:00:00
abstract::A beam anomaly due to trimmer bars for a cobalt teletherapy machine and the possible consequences in clinical work are reported. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/128.3.807a
更新日期:1978-09-01 00:00:00
abstract:PURPOSE:To assess replacement of barium enema examination with colonoscopy in relation to age- and sex-related risk factors, place of service, physician specialty, and cost. MATERIALS AND METHODS:Between 1985 and 1992, 894,777 insurance claims for barium enema examination and lower gastrointestinal endoscopy were retr...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.195.3.7754010
更新日期:1995-06-01 00:00:00
abstract:PURPOSE:To evaluate the effect of in utero exposure to a single dose of water-soluble intravenous iodinated contrast medium on thyroid function at birth. MATERIALS AND METHODS:This study was approved by the institutional review board, with waiver of consent, and was HIPAA compliant. Maternal and newborn records were r...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.10100163
更新日期:2010-09-01 00:00:00
abstract:PURPOSE:To evaluate magnetic resonance (MR) hydrometry, a method of quantifying fluid amounts by using MR imaging, for assessing the exocrine function of the pancreas after stimulation with secretin. MATERIALS AND METHODS:Images were obtained with a single-shot turbo spin-echo sequence by using a 1.0-T magnet with a q...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.218.1.r01ja2061
更新日期:2001-01-01 00:00:00
abstract::Seven patients with lung tumors underwent percutaneous implantation of iodine-125 sources into the tumor. Needle placement and seed implantation were effected with biplane fluoroscopy and a computer planning model based on computed tomography. No complications were encountered. Five of the seven patients underwent the...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.164.3.3615870
更新日期:1987-09-01 00:00:00
abstract::Sports-related muscle pain is frequent in both trained and untrained persons; however, its severity and significance may be difficult to assess clinically. The authors used magnetic resonance (MR) imaging to evaluate acute strains and delayed-onset muscle soreness in sedentary subjects and postmarathon myalgia in trai...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.172.3.2772190
更新日期:1989-09-01 00:00:00
abstract:PURPOSE:To measure scanner and patient variation in computed tomographic (CT) numbers for electron-beam CT and to determine the ability of calibration phantoms to reduce variability in calcium quantitation. MATERIALS AND METHODS:Two calibration phantoms were imaged to ensure longitudinal homogeneity and to determine t...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.196.1.7784560
更新日期:1995-07-01 00:00:00
abstract:PURPOSE:To evaluate imaging utilization trends in patients with acute pancreatitis (AP) and to assess independent predictors of radiology usage in relation to patient outcomes. MATERIALS AND METHODS:Institutional review board approval was obtained for this HIPAA-compliant study; written informed consent was waived. AP...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.10100320
更新日期:2011-01-01 00:00:00
abstract:PURPOSE:To evaluate magnetic resonance (MR) imaging-guided laser-induced thermotherapy (LITT) of liver metastases. MATERIALS AND METHODS:In a phase II study, 20 patients with 33 metastases from colorectal carcinoma (75%) or other primary tumors (25%) underwent LITT. MR thermometry performed with fast low-angle shot se...
journal_title:Radiology
pub_type: 临床试验,杂志文章
doi:10.1148/radiology.196.1.7540310
更新日期:1995-07-01 00:00:00
abstract:PURPOSE:To evaluate the long-term effectiveness of percutaneous treatment of liver hydatid cysts. MATERIALS AND METHODS:Thirty-one patients (19 female patients and 12 male patients; age range, 8-78 years; mean age, 41 years) with 57 liver hydatid cysts underwent percutaneous treatment. The cysts were treated with hype...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.198.1.8539390
更新日期:1996-01-01 00:00:00
abstract:PURPOSE:To determine whether changes at diffusion-tensor magnetic resonance (MR) imaging were present in children with intractable epilepsy and focal cortical dysplasia (FCD) in (a) subcortical white matter subjacent to MR imaging-visible areas of FCD, (b) subcortical white matter beyond the MR imaging-visible abnormal...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2511081092
更新日期:2009-04-01 00:00:00
abstract:PURPOSE:To evaluate the data acquired over 2 1/2 years regarding the use of mechanical thrombolysis as the routine, preferred treatment for thrombosed access grafts in a large patient population undergoing hemodialysis. MATERIALS AND METHODS:Mechanical thrombolysis was performed in 1,176 cases. Data were collected on ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.200.3.8756920
更新日期:1996-09-01 00:00:00
abstract::The ridge pattern of the external ear was evaluated in 50 normal subjects during the second half of pregnancy. Definition was found to progress with gestational age, with a fully defined pattern implying maturity beyond 33 weeks. The external ear was edematous in patients with severe fetal hydrops. Anomalous shape or ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.147.3.6844620
更新日期:1983-06-01 00:00:00
abstract:PURPOSE:To define the beneficial and detrimental effects of adding exercise to direct magnetic resonance (MR) shoulder arthrography. MATERIALS AND METHODS:Direct, intraarticular, gadolinium arthrography of the shoulder was performed in 41 patients, who underwent 1.5-T MR imaging before and after 1 minute of arm swingi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.215.2.r00ma14491
更新日期:2000-05-01 00:00:00