Abstract:
:Radiologically guided balloon catheters were used to dilate 94 gastrointestinal strictures in 92 patients over a 6-year period. Fifty strictures were esophageal and 44 nonesophageal (22 gastroenterostomies, 11 antral-pyloric strictures, four colorectal strictures, four enteroenterostomies, and three miscellaneous strictures). Factors influencing the success of stricture intubation included patient age, stricture location (esophageal vs. nonesophageal and proximal vs. distal esophageal), and association with a surgical anastomosis. Malignancy was associated with greater postdilation irregularity and a smaller increase in stricture diameter, as measured radiographically. Procedural failures occurred in 8% of cases (2% of esophageal and 30% of nonesophageal lesions). Two small, asymptomatic mucosal tears were seen after dilation (one esophageal and one colonic); no other procedural complications occurred. Following successful dilation, 16 patients (17%; six with esophageal and ten with non-esophageal strictures) had recurrence of symptoms during short-term (30-day) follow-up.
journal_name
Radiologyjournal_title
Radiologyauthors
McLean GK,Cooper GS,Hartz WH,Burke DR,Meranze SGdoi
10.1148/radiology.165.1.3628790subject
Has Abstractpub_date
1987-10-01 00:00:00pages
35-40issue
1eissn
0033-8419issn
1527-1315journal_volume
165pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::The capability of ultrasonography and computed tomographic body scanning to demonstrate the status of the biliary tract was studied prospectively in 23 jaundiced patients. Ultrasonography correctly indicated the presence or absence of obstruction in 21 of the 23 patients and CT scanning in 20. Both procedures correctl...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/129.3.731
更新日期:1978-12-01 00:00:00
abstract:PURPOSE:To quantify inter- and intrascanner conformity in computed tomographic (CT) densitometry of the lungs. MATERIALS AND METHODS:With six scanners from four manufacturers, a lung densitometry protocol with several variations was applied for performance comparison. Phantoms included water, air, and a humanoid thora...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.197.3.7480750
更新日期:1995-12-01 00:00:00
abstract:PURPOSE:To retrospectively evaluate the sensitivity and specificity of 64-detector computed tomography (CT) in the portal venous phase by using transverse images and both multiplanar and minimum intensity reformations for the detection of biliary duct narrowing and choledocholithiasis, with magnetic resonance cholangio...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2472070473
更新日期:2008-05-01 00:00:00
abstract:PURPOSE:To collect up-to-date data in healthy children to create a digital hand atlas (DHA) that can be used to evaluate, on the basis of the Greulich and Pyle atlas method, racial differences in skeletal growth patterns of Asian, African American, white, and Hispanic children in the United States. MATERIALS AND METHO...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2493080468
更新日期:2009-01-01 00:00:00
abstract::Background Previous studies have suggested that texture analysis is a promising tool in the diagnosis, characterization, and assessment of treatment response in various cancer types. Therefore, application of texture analysis may be helpful for early prediction of pathologic response in breast cancer. Purpose To inves...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2019182718
更新日期:2020-01-01 00:00:00
abstract::Bronchial webs are rare lesions which often go unrecognized. The authors describe a patient who presented with right-lower-lobe bronchiectasis and at-electasis secondary to a web in the right-lower-lobe bronchus. This is the first known instance where such a lesion has been demonstrated by bronchography. The etiology ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/121.3.526
更新日期:1976-12-01 00:00:00
abstract:PURPOSE:To compare the diagnostic accuracy of two-dimensional (2D) full-field digital mammography with that of two-view (mediolateral and craniocaudal) and single-view (mediolateral oblique) tomosynthesis in an observer study involving two institutions. MATERIALS AND METHODS:Ethical committee approval was obtained. Al...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.11103514
更新日期:2012-03-01 00:00:00
abstract::In nine neonates, spontaneous regression of a multicystic dysplastic kidney (MCDK) was witnessed by means of repeated ultrasound (US) examinations. In three of these patients, the diagnosis was made in utero. Follow-up examinations at the ages of 3, 5, and 32 weeks post-partum showed what would have been called unilat...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.161.1.3532180
更新日期:1986-10-01 00:00:00
abstract::A patent umbilical vein was demonstrated via ultrasound in a patient with portal hypertension. Ultrasonographic differential diagnosis of intra- and juxta-hepatic veins is given, with emphasis on real time ultrasonography. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/120.1.159
更新日期:1976-07-01 00:00:00
abstract:PURPOSE:To compare the antiquated x-ray system of Hoffmans and van Kleef (circa 1896) with modern x-ray equipment in terms of radiation dose, x-ray beam properties, image quality, and electrical parameters. MATERIALS AND METHODS:The antiquated x-ray system consisted of a Ruhmkorff inductor, battery, and Crookes tube. ...
journal_title:Radiology
pub_type: 历史文章,杂志文章
doi:10.1148/radiol.11101899
更新日期:2011-05-01 00:00:00
abstract::Purpose To compare the capability of pulmonary thin-section magnetic resonance (MR) imaging with ultrashort echo time (UTE) with that of standard- and reduced-dose thin-section computed tomography (CT) in nodule detection and evaluation of nodule type. Materials and Methods The institutional review board approved this...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2017161037
更新日期:2017-08-01 00:00:00
abstract:PURPOSE:To investigate the histopathologic anatomy of calcium pyrophosphate dihydrate (CPPD) crystal deposition in and around the atlantoaxial joint and the association between CPPD crystal deposition and subchondral cysts, erosions, and fracture involving the odontoid process of the axis. MATERIALS AND METHODS:One ad...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.216.1.r00jl36213
更新日期:2000-07-01 00:00:00
abstract:PURPOSE:To compare image resolution from iterative reconstruction with resolution from filtered back projection for low-contrast objects on phantom computed tomographic (CT) images across vendors and exposure levels. MATERIALS AND METHODS:Randomized repeat scans of an American College of Radiology CT accreditation pha...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2015141260
更新日期:2015-10-01 00:00:00
abstract:PURPOSE:To characterize the imaging features of desmoplastic small round cell tumor of the abdomen and correlate them with the histopathologic findings. MATERIALS AND METHODS:Eleven of 14 patients with desmoplastic small round cell tumor had primary abdominal involvement. In nine of these patients (mean age, 20 years)...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.210.3.r99mr42633
更新日期:1999-03-01 00:00:00
abstract:PURPOSE:To establish a protocol for credentialed pediatric radiology nurses, with radiologist supervision, to administer ketamine to induce sedation and analgesia during interventional radiologic procedures. MATERIALS AND METHODS:This study was conducted in two phases. The goal of the first phase was to develop a seda...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2252011786
更新日期:2002-11-01 00:00:00
abstract::Serial proton nuclear magnetic resonance (NMR) images of distal upper extremities were obtained in four healthy volunteers and four patients with giant cell tumor of the distal radius. The steady-state-free-precession (SSFP) data collection technique and an 8-cm bore superconducting magnet (1.44 tesla) were used. All ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.144.3.7100470
更新日期:1982-08-01 00:00:00
abstract:PURPOSE:To determine if local application of L-arginine, r-hirudin, or molsidomine significantly reduces restenosis after balloon angioplasty in stenotic rabbit iliac arteries. MATERIALS AND METHODS:Thirty-one male cholesterol-fed New Zealand white rabbits underwent balloon dilation of both common iliac arteries to in...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.219.3.r01jn27716
更新日期:2001-06-01 00:00:00
abstract:PURPOSE:To describe the diaphragm muscle slip sign, a previously unreported finding of pneumoperitoneum on plain radiographs. MATERIALS AND METHODS:Diaphragmatic muscle slips were observed on supine plain abdominal (n = 6) or recumbent frontal chest (n = 3) radiographs in nine patients. Computed tomographic (CT) confi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.203.2.9114100
更新日期:1997-05-01 00:00:00
abstract::Magnetic resonance (MR) images of the neck were obtained in 24 patients using a specially designed radio-frequency coil, standard and high-resolution imaging techniques, and a variety of spin echo and inversion recovery pulse sequences. Cervical vascular structures were more easily identified with MR than with CT beca...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.150.2.6691100
更新日期:1984-02-01 00:00:00
abstract::Current management of osteoarthritis (OA) is primarily focused on symptom control. Intra-articular corticosteroid (IACS) injections are often used for pain management of hip and knee OA in patients who have not responded to oral or topical analgesics. Recent case series suggested that negative structural outcomes incl...
journal_title:Radiology
pub_type: 杂志文章,评审
doi:10.1148/radiol.2020200771
更新日期:2020-12-01 00:00:00
abstract::To improve the efficiency of magnetic resonance imaging of the total spine, the authors developed a coil holder and marker system to accurately localize the level of the spine imaged. The patient's external auditory canal and the alignment light on the imager are lined up with marks on the coil holder. The spine is th...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.172.3.2772200
更新日期:1989-09-01 00:00:00
abstract::Studies of pylmonary clearance of tantalum dust labeled with 182Ta in dogs have been extended to as far as 816 days postexposure in order to substantiate earlier pulmonary retention data, examine lymphatic uptake, and seek long-term pathological changes. Exposure to 5-mug and 10-mug powders was compared with the resul...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/121.2.415
更新日期:1976-11-01 00:00:00
abstract::In this second part of the report, the authors discuss the advantages and disadvantages of several embolization agents. These include Gelfoam, silicone spheres, polyvinyl alcohol foam (PVA), isobutyl-2-cyanoacrylate (IBCA), silicone fluid mixtures, and tantalum powder. The techniques employed and conditions under whic...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/132.3.631
更新日期:1979-09-01 00:00:00
abstract::Two cases demonstrated that intravenously injected contrast medium entered cystic lesions. It appears that both vascular opacification and transgression of the blood-brain barrier play major roles in contrast enhancement. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/120.2.345
更新日期:1976-08-01 00:00:00
abstract::For measurement of poststenotic jet velocities with magnetic resonance (MR) imaging, the authors reduced the echo time (TE) of the field even-echo rephasing (FEER) velocity mapping sequence from 14.0 to 3.6 msec, so minimizing the problem of MR signal loss from turbulent fluid. In vitro use of rotating disk and stenot...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.178.1.1984310
更新日期:1991-01-01 00:00:00
abstract:PURPOSE:To approximate the functional relationship between invasively measured mean pulmonary arterial pressure (mPAP) and the phase-contrast magnetic resonance (MR) imaging-derived duration of vortical blood flow along the main pulmonary artery and to analyze its applicability for noninvasive diagnosis of pulmonary hy...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.14140849
更新日期:2015-04-01 00:00:00
abstract:PURPOSE:To clarify the angiographic findings of the posterior circulation in patients with moyamoya disease. MATERIALS AND METHODS:Seventy-six patients with idiopathic moyamoya disease were studied with conventional angiography. The angiographic findings were reviewed for steno-occlusive lesions, collateral vessels, a...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.197.1.7568830
更新日期:1995-10-01 00:00:00
abstract:PURPOSE:To study the frequency, timing, and associations of thoracic metastases in advanced (stage III and IV) high-grade serous ovarian cancer (HGSC) to help optimize the use of cross-sectional chest imaging. MATERIALS AND METHODS:This institutional review board-approved retrospective study with waived informed conse...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2015142467
更新日期:2015-12-01 00:00:00
abstract::Perfusion computed tomography (CT) is a relatively new technique that allows rapid qualitative and quantitative evaluation of cerebral perfusion by generating maps of cerebral blood flow (CBF), cerebral blood volume (CBV), and mean transit time (MTT). The technique is based on the central volume principle (CBF = CBV/M...
journal_title:Radiology
pub_type: 杂志文章,评审
doi:10.1148/radiol.2313021488
更新日期:2004-06-01 00:00:00
abstract:PURPOSE:To determine if percutaneously applied radio frequency (RF) combined with percutaneous ethanol instillation (PEI) can increase the extent of ablation in rat breast tumors. MATERIALS AND METHODS:R3230 mammary adenocarcinoma was implanted bilaterally in the mammary fat pads of 18 female rats. The tumor nodules m...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.217.3.r00dc27827
更新日期:2000-12-01 00:00:00