Abstract:
:The computed tomographic scans of 200 consecutive patients with Crohn disease were studied to determine the frequency and patterns of perirectal and perianal involvement. In 163 patients (82%) abnormalities in the perirectal-perianal region were demonstrated; findings included inflammation of fat planes (73%), bowel wall thickening (30%), fistulas or sinus tracts (22%), and abscesses (14%). Fistulas or sinus tracts occurred with equal frequency above or below the level of the anterior symphysis pubis. Abscesses, rectal thickening, and inflammatory infiltration of fat occurred more than twice as often above the symphysis pubis. However, 37% of patients had manifestations of Crohn disease below the symphysis pubis, emphasizing the importance of extending scanning sequences to the perineum.
journal_name
Radiologyjournal_title
Radiologyauthors
Yousem DM,Fishman EK,Jones Bdoi
10.1148/radiology.167.2.3357940subject
Has Abstractpub_date
1988-05-01 00:00:00pages
331-4issue
2eissn
0033-8419issn
1527-1315journal_volume
167pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::Magnetic resonance (MR) imaging of the thyroid was performed with a 1.5-T system and local receiver coil in 19 "healthy" subjects and 34 patients with various focal and diffuse thyroid disorders. The normal gland was typically homogeneous with increased intensity relative to that of muscle on images obtained with long...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.164.2.3602390
更新日期:1987-08-01 00:00:00
abstract:PURPOSE:To determine the appropriate radiologic criteria of metastatic retropharyngeal lymph nodes (RLNs) in patients with nasopharyngeal carcinoma (NPC). MATERIALS AND METHODS:After institutional review board approval and informed consent, 303 consecutive NPC patients treated with definitive radiation therapy were ex...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.10090289
更新日期:2010-05-01 00:00:00
abstract:PURPOSE:To measure serum calcium concentration with three different analytic methods after administration of gadoversetamide and three other gadolinium chelates in dogs. MATERIALS AND METHODS:Six dogs were injected with 0.1-, 0.3-, 1.0-, and 3.0-mmol/kg doses of gadoversetamide; 1.0-mmol/kg doses of gadodiamide, gadop...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2331031689
更新日期:2004-10-01 00:00:00
abstract:PURPOSE:To examine the performance and reproducibility of a commercially available computer-aided detection (CAD) system with a set of mammograms obtained in 100 patients who had undergone biopsy after positive findings at mammography. MATERIALS AND METHODS:One hundred positive mammographic examinations (four views ea...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2281020489
更新日期:2003-07-01 00:00:00
abstract::High-activity iodine-125 sources in plastic catheters were surgically placed in the cerebral white matter of healthy beagle dogs and later removed. Reference doses, calculated at a point 0.75 mm from the source, ranged from 10 to 40 Gy. Necrosis, vascular-related damage, and edema were quantified by computed tomograph...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.158.3.3945760
更新日期:1986-03-01 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 evaluate efficacy and safety of a hydrodynamic rheolytic thrombectomy device for rapid percutaneous treatment of acute thromboembolic occlusions of native lower-extremity arteries and bypass grafts. MATERIALS AND METHODS:In 50 patients, thrombectomy was performed with the rheolytic catheter at four centers....
journal_title:Radiology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1148/radiology.205.3.9393520
更新日期:1997-12-01 00:00:00
abstract::Pneumoperitoneum, pneumomediastinum, pneumopericardium and subcutaneous emphysema developed in a patient following simple dental extraction. Other causes of this unusual complication, such as pneumatosis cystoides intestinalis, insufflation of fallopian tubes, pulmonary-peritoneal fistula, post-partum knee-chest exerc...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/15.3.539
更新日期:1975-06-01 00:00:00
abstract::The purpose of this study was to assess the blooming artifacts in ex vivo coronary arteries at multidetector computed tomography (CT) and flat-panel-volume CT by comparing measured areas of calcified plaque with respect to the reference standard of histopathologic findings. Three ex vivo hearts were scanned with multi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2483072003
更新日期:2008-10-01 00:00:00
abstract::High molecular weight antigen (HMWA) is a tumor-associated proteoglycan of human malignant melanoma. I-131 labeled Fab fragments of these specific antibodies were used for preliminary feasibility studies for radioimmunodetection and therapy of human subjects who had inoperable metastatic melanoma. Ten patients receive...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.155.2.3983400
更新日期:1985-05-01 00:00:00
abstract::A case of blind pouch formation presenting as gastrointestinal bleeding 23 years following side-to-side small bowel anastomosis to relieve obstruction is reported. Although rare, blind pouches may occasionally be encountered. Familiarity with the clinical and radiographic features can aid in a prompt and precise preop...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/132.2.314
更新日期:1979-08-01 00:00:00
abstract:PURPOSE:To evaluate the effect of preprocedural prediction of the best tube angle obliquity for visualization of the uterine artery origin by using three-dimensional (3D)-reconstructed contrast material-enhanced magnetic resonance (MR) angiography on the radiation dose, fluoroscopy time, and contrast medium volume duri...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2513081751
更新日期:2009-06-01 00:00:00
abstract::Ten consecutive patients with biopsy-proved invasive cervical carcinoma underwent magnetic resonance (MR) imaging with both a standard body coil and with an endorectal surface coil. The endorectal coil provided a markedly improved signal-to-noise ratio, enabling the use of small fields of view; thus, the images had si...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.180.1.2052730
更新日期:1991-07-01 00:00:00
abstract::To determine whether gadodiamide injection can provide sufficient enhancement on both T1- and T2-weighted spin-echo magnetic resonance (MR) images of the heart and skeletal muscles, anesthetized rats were divided into five groups. Groups 1-3 received 0.1 (n = 9), 0.3 (n = 8), or 0.5 (n = 8) mmol/kg gadodiamide injecti...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.186.1.8416560
更新日期:1993-01-01 00:00:00
abstract:PURPOSE:To test whether magnetic resonance (MR) imaging enables accurate measurement of extraction fraction (EF) in swine with unilateral renal ischemia and to evaluate effects of renal arterial stenosis on EF and single-kidney glomerular filtration rate. MATERIALS AND METHODS:High-grade unilateral renal arterial sten...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2231010420
更新日期:2002-04-01 00:00:00
abstract:PURPOSE:To compare the magnetic resonance (MR) imaging findings of primary hepatocellular carcinoma (HCC) in cirrhotic versus noncirrhotic livers. MATERIALS AND METHODS:MR images in 36 patients with HCC (30 men and she women aged 42-84 years [mean age, 65 years]) were retrospectively reviewed. The number and size of h...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.210.1.r99ja1975
更新日期:1999-01-01 00:00:00
abstract::Presacral abscesses developed in two men (aged 59 and 76 years) after abdominoperineal resection. Computed tomography was performed to demonstrate the distance from the abscess to the perineum and the distance of the abscess anterior to the sacrum. Then, lateral and anteroposterior fluoroscopy was performed to guide t...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.190.2.8284420
更新日期:1994-02-01 00:00:00
abstract:PURPOSE:To determine whether perfusion-weighted and proton spectroscopic MR imaging can be used to differentiate high-grade primary gliomas and solitary metastases on the basis of differences in vascularity and metabolite levels in the peritumoral region. MATERIALS AND METHODS:Fifty-one patients with a solitary brain ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2223010558
更新日期:2002-03-01 00:00:00
abstract::The small digital computer is becoming ever more powerful, reliable, and inexpensive. Diagnostic radiology and the computer are becoming more intertwined. During the past decade, computed tomography (CT) has achieved outstanding success. CT and other digital image systems that are capable of computer manipulation, sto...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.145.2.7134470
更新日期:1982-11-01 00:00:00
abstract::Magnetic resonance imaging (MRI) of an angiographically confirmed pulmonary embolus was performed. The thrombus appeared as an intense intraluminal signal within the left descending pulmonary artery; this signal was absent on repeat examination after clot lysis. Because MR will not image flowing blood, it provides a p...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.153.2.6484180
更新日期:1984-11-01 00:00:00
abstract::The radiologic findings in three cases of meningovascular syphilis are presented. Angiography demonstrated varying degrees of narrowing and ectasia of the supraclinoid carotid, basilar, and proximal anterior and middle cerebral arteries, as well as distal branches. Computed tomography (CT) showed multifocal infarction...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.158.2.3941870
更新日期:1986-02-01 00:00:00
abstract:PURPOSE:To determine objectively the current standard of reporting for studies of computer-aided detection (CAD) for computed tomographic (CT) colonography by systematically reviewing published articles. MATERIALS AND METHODS:MEDLINE was searched to identify study articles meeting the inclusion criteria for describing...
journal_title:Radiology
pub_type: 杂志文章,meta分析,评审
doi:10.1148/radiol.2461070121
更新日期:2008-02-01 00:00:00
abstract:PURPOSE:To evaluate, by using computer image analysis, the mammographic density patterns of women with germ-line mutations in BRCA1 and BRCA2 genes in comparison with those of women at low risk of developing breast cancer. MATERIALS AND METHODS:Mammograms from 30 carriers of BRCA1 and BRCA2 mutations and from 142 low-...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2252010845
更新日期:2002-11-01 00:00:00
abstract:PURPOSE:To quantitatively characterize early emphysematous changes in the lung microstructure of current and former smokers with noninvasive helium 3 ((3)He) lung morphometry and to compare these results with the clinical standards, pulmonary function testing (PFT) and low-dose computed tomography (CT). MATERIALS AND ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.11102226
更新日期:2011-09-01 00:00:00
abstract:PURPOSE:To retrospectively evaluate the immediate and long-term clinical results, as well as the angiographic results, of occlusion of middle cerebral artery (MCA) berry aneurysms with coils. MATERIALS AND METHODS:This retrospective study had institutional review board approval, and informed consent was obtained. One ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2372041015
更新日期:2005-11-01 00:00:00
abstract::Retrospective analysis of 139 ventilation-perfusion (V/Q) lung scans obtained for suspected pulmonary embolism (PE) was undertaken, using the Biello criteria for interpretation. All scans were correlated with chest radiographs obtained within 24 hours and with pulmonary angiograms obtained within 72 hours of the V/Q s...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.159.2.3961170
更新日期:1986-05-01 00:00:00
abstract:PURPOSE:To test the hypothesis that American College of Radiology Breast Imaging Reporting and Data System (BI-RADS) categories for breast density reported by radiologists are lower when digital mammography is used than those reported when film-screen (FS) mammography is used. MATERIALS AND METHODS:This study was inst...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.12120221
更新日期:2013-03-01 00:00:00
abstract::Clinical, radiographic, and radionuclide angiographic findings of three cases of jugular glomic tumor associated with hearing loss are discussed. In one case computed tomographic findings are discussed. It is concluded that radioisotopic techniques may be useful in diagnosis and follow-up of this tumor. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/121.3.673
更新日期:1976-12-01 00:00:00
abstract:PURPOSE:To prospectively evaluate the sensitivity and specificity of integrated fluorine 18 fluorodeoxyglucose (FDG) positron emission tomography (PET) and computed tomography (CT) (PET/CT) for the preoperative diagnosis of mediastinal nodal metastasis in stage T1 non-small cell lung cancer (NSCLC), with surgical and h...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2412051173
更新日期:2006-11-01 00:00:00
abstract:PURPOSE:To validate coronary sinus flow measurements for quantification of global left ventricular (LV) perfusion by means of velocity-encoded cine (VEC) magnetic resonance (MR) imaging and flow probes. MATERIALS AND METHODS:Measurements of coronary sinus flow were performed in seven dogs by using VEC MR imaging at ba...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.217.2.r00nv10487
更新日期:2000-11-01 00:00:00