Abstract:
:Treatment of complex intracranial aneurysms by means of interventional neurovascular techniques is now being performed with a newly developed silicone detachable-microballoon device. The balloon is composed of unique silicone elastomers that are extremely soft and malleable. It therefore conforms to the blood vessel lumen or aneurysm wall and reduces the risk of rupture. It is affixed onto a 2.0-F catheter and can be either directed by flow or guided with the catheter. For aneurysms with a well-defined neck, the balloon is placed directly into the aneurysm, inflated with 2-hydroxyethyl methacrylate for permanent solidification, and detached. The aneurysm is thus excluded from the circulation, and the parent vessel is preserved. For aneurysms without a well-defined neck, test occlusion can be performed, followed by permanent balloon occlusion of the parent vessel. This balloon technique has been successfully used to treat aneurysms in both the anterior and posterior circulations, where standard neurosurgical techniques have failed, and in surgically inaccessible anatomic locations.
journal_name
Radiologyjournal_title
Radiologyauthors
Higashida RT,Halback VV,Dormandy B,Bell JD,Hieshima GBdoi
10.1148/radiology.174.3.2305050subject
Has Abstractpub_date
1990-03-01 00:00:00pages
687-91issue
3 Pt 1eissn
0033-8419issn
1527-1315journal_volume
174pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::Radiological abnormalities of the ribs are reported in 5 newborn infants with myotonic dystrophy. In all 5, the ribs appeared very thin, in contrast to the normal appearance of the rest of the skeleton. This slenderness, which is important for diagnosis and prognosis, seems to be caused by hypotonia of the intercostal...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/127.3.747
更新日期:1978-06-01 00:00:00
abstract:PURPOSE:To determine the incremental benefit of combined endorectal magnetic resonance (MR) imaging and MR spectroscopic imaging, as compared with endorectal MR imaging alone, for sextant localization of peripheral zone (PZ) prostate cancer. MATERIALS AND METHODS:This prospective multicenter study, conducted by the Am...
journal_title:Radiology
pub_type: 杂志文章,多中心研究
doi:10.1148/radiol.2511080409
更新日期:2009-04-01 00:00:00
abstract:PURPOSE:To analyze asymptomatic adnexal masses at positron emission tomography (PET) with fluorodeoxyglucose (FDG) in correlation with histopathologic findings and evaluate FDG PET for assessing malignancy in comparison with transvaginal B-mode and Doppler ultrasonography (US) and magnetic resonance (MR) imaging. MATE...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2233001850
更新日期:2002-06-01 00:00:00
abstract:PURPOSE:To retrospectively assess the apparent diffusion coefficient (ADC) for prediction of malignancy and prognosis of malignant astrocytic tumors. MATERIALS AND METHODS:The institutional review board approved this study and did not require patient informed consent. Findings from 37 consecutive patients (21 men, 16 ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2413051276
更新日期:2006-12-01 00:00:00
abstract::Fifty-five liver metastases in 21 patients were treated with interstitial laser photocoagulation (ILP). Tumors were irradiated with a neodymium yttrium aluminum garnet laser via optical fibers passed through 19-gauge needles inserted under ultrasound (US) guidance. Heating of the tumor was evident at real-time US as a...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.187.2.8475270
更新日期:1993-05-01 00:00:00
abstract::Percutaneous cholecystostomy was performed in 36 patients, of whom 22 patients with acute cholecystitis had decompression of the gallbladder and 14 patients with common duct obstruction had biliary decompression through the gallbladder. In almost all cases of acute cholecystitis, percutaneous cholecystostomy quickly c...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.152.2.6739800
更新日期:1984-08-01 00:00:00
abstract::Eighty-nine biliary strictures in 73 patients who had undergone percutaneous balloon dilatation were reviewed to determine long-term patency rates and clinical management problems. The majority of dilatations were performed in patients with anastomotic strictures (n = 44), iatrogenic strictures (n = 28), and stricture...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.160.1.3715030
更新日期:1986-07-01 00:00:00
abstract:PURPOSE:To review the ultrasonographic (US), computed tomographic (CT), and magnetic resonance (MR) imaging findings in 13 patients with telangiectatic focal nodular hyperplasia (FNH) and to compare imaging features with histopathologic results from resected specimens. MATERIALS AND METHODS:US, helical multiphasic CT,...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2282020040
更新日期:2003-08-01 00:00:00
abstract:PURPOSE:To compare prenatal ultrasonography (US) and magnetic resonance (MR) imaging for the diagnosis of fetal anomalies. MATERIALS AND METHODS:Images of 27 fetuses (28 diagnostic cases) with anomalies diagnosed at US were evaluated; in these fetuses, prenatal MR imaging was performed within 15 days of US. Prenatal U...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2322030504
更新日期:2004-08-01 00:00:00
abstract::The authors performed sympathetic nerve blockades in seven patients with peripheral ischemia and possible autonomic dysfunction. Magnetic resonance (MR) imaging was used to guide needle placement, to monitor distribution of injected agents, and to measure increases in blood flow, which were as much as 10-fold. MR imag...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2231010751
更新日期:2002-05-01 00:00:00
abstract:PURPOSE:To study the vascular and biliary liver anatomy and its relevance to the creation of a transjugular intrahepatic portosystemic shunt (TIPS). MATERIALS AND METHODS:Acrylic casts of 25 normal human livers (necropsy specimens) were obtained. The anatomy of the hepatic veins, portal vein, hepatic artery, and bile ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.191.3.8184050
更新日期:1994-06-01 00:00:00
abstract::To determine the optimal coil and patient position for magnetic resonance imaging of patients with silicone breast implants, images obtained with body, circular surface, flexible, single shoulder, and dual shoulder coils in various numbers of patients were compared with regard to signal-to-noise ratio (S/N), decay of ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.187.1.8451430
更新日期:1993-04-01 00:00:00
abstract::Capabilities of computed tomography (CT) and magnetic resonance (MR) imaging in the diagnosis of cerebellopontine angle-petromastoid (CPA-PM) lesions were compared in 75 patients. CT and MR demonstrated 95.8% and 98.7% of the lesions, respectively. MR was often more helpful for characterization of neuromas, epidermoid...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.162.2.3492010
更新日期:1987-02-01 00:00:00
abstract::The authors present a gastric mucosal biopsy technique with use of a nasogastric catheter and biopsy forceps after double-contrast upper gastrointestinal fluoroscopy in patients with clinical symptoms of dyspepsia. In 51 patients (18 men and 33 women, aged 27-73 years [mean, 46 years]), 136 aggregates (specimens compo...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.191.1.8134590
更新日期:1994-04-01 00:00:00
abstract:PURPOSE:To evaluate the positive predictive values (PPVs) of Breast Imaging and Reporting Data Systems (BI-RADS) assessment categories for breast magnetic resonance (MR) imaging and to identify the BI-RADS MR imaging lesion features most predictive of cancer. MATERIALS AND METHODS:This institutional review board-appro...
journal_title:Radiology
pub_type: 杂志文章,多中心研究
doi:10.1148/radiol.12110619
更新日期:2012-07-01 00:00:00
abstract::Computed tomographic (CT) scans and magnetic resonance (MR) images obtained in 24 patients with cervical lymphadenopathy were retrospectively and blindly evaluated by two readers for the presence of central nodal necrosis (CNN) and extracapsular nodal spread (ENS). The CT studies were all enhanced, and the MR images w...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.182.3.1535890
更新日期:1992-03-01 00:00:00
abstract::Peripheral magnetic resonance (MR) angiography was performed in eight volunteers, with a temperature-controlled water blanket. After warming of the right foot, unobserved vessels became conspicuous in all patients: Average increase in signal intensity was nearly twofold in the major artery and vein depicted. A similar...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.198.3.8628890
更新日期:1996-03-01 00:00:00
abstract:PURPOSE:To test previously defined ultrasound (US) criteria for identification of partial-thickness tears of the rotator cuff. MATERIALS AND METHODS:Before shoulder arthroscopy, 52 patients with shoulder pain for more than 3 months were examined with a 7.5-MHz commercially available linear-array transducer and a stand...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.197.2.7480690
更新日期:1995-11-01 00:00:00
abstract::High-resolution, real-time ultrasonography (US) with graded compression was used to evaluate 90 patients with clinically suspected acute appendicitis. US visualization of a noncompressible appendix was the primary criterion for a diagnosis of acute appendicitis. The overall sensitivity was 89%, the specificity was 95%...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.163.1.3547490
更新日期:1987-04-01 00:00:00
abstract::Between 1978 and 1982, 1,200 patients underwent angiography following acute traumatic injury, and arterial injuries were detected in 182 cases (15.2%). Two-thirds of the cases were associated with penetrating trauma; half the injuries occurred in the pelvis or lower extremities. The most common and reliable sign of ar...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.161.1.3763860
更新日期:1986-10-01 00:00:00
abstract::Circular esophageal myotomy of the upper pouch in infants with esophageal atresia is an effective means of reducing anastomotic tension. This report describes two patients who developed marked postoperative dilatation of the proximal esophagus at the myotomy site. On radiographs, the dilated, air-filled esophagus simu...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.136.2.7403510
更新日期:1980-08-01 00:00:00
abstract:PURPOSE:To determine long-term results of the prospective Dutch Iliac Stent Trial. MATERIALS AND METHODS:The study protocol was approved by local institutional review boards. All patients gave written informed consent. Two hundred seventy-nine patients (201 men, 78 women; mean age, 58 years) with iliac artery disease ...
journal_title:Radiology
pub_type: 杂志文章,随机对照试验
doi:10.1148/radiol.2382041053
更新日期:2006-02-01 00:00:00
abstract:PURPOSE:To evaluate the potential of anti-human epidermal growth factor receptor (HER)1- and anti-HER2-targeted radiolabeled antibodies and magnetic resonance (MR) imaging for imaging of orthotopic malignant pleural mesothelioma (MPM) in mouse models. MATERIALS AND METHODS:Animal studies with 165 mice were performed i...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.12121021
更新日期:2013-04-01 00:00:00
abstract::Three children with marrow-packing disorders demonstrated exaggerated anterior vertebral notches with poorly defined cortical margins. One child had thalassemia major, another had Gaucher disease, and a third had metastatic neuroblastoma. A discussion of each case and the etiology of the notches is presented. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/131.2.367
更新日期:1979-05-01 00:00:00
abstract::Embolization of metallic mercury is extremely rare. The literature has consisted primarily of scattered case reports. Two cases of patients with mercury embolization are presented. The differential diagnosis of the chest radiograph is discussed. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.137.2.7433660
更新日期:1980-11-01 00:00:00
abstract:PURPOSE:To evaluate the reliability of ultrasonographic (US) elastography of the supraspinatus (SSP) muscle, define normal shear-wave velocity (SWV) values, and correlate findings with tendon integrity and muscle quality. MATERIALS AND METHODS:The study was approved by the local ethics committee, and written informed ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2015150908
更新日期:2016-02-01 00:00:00
abstract:PURPOSE:To characterize the magnetic resonance (MR) imaging response of brain metastases after gamma knife stereotactic radiosurgery and determine whether imaging features and tumor response rates correlate with local tumor control and survival. MATERIALS AND METHODS:Serial MR examinations were performed in 48 patient...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.211.3.r99jn48807
更新日期:1999-06-01 00:00:00
abstract:PURPOSE:To prospectively determine whether dynamic contrast material-enhanced (DCE) magnetic resonance (MR) quantitative parameters correlate with fibrosis and microvascular density (MVD) in malignant and benign solid pancreatic focal lesions and nontumoral pancreatic tissue. MATERIALS AND METHODS:The institutional re...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.11103515
更新日期:2011-11-01 00:00:00
abstract::A survey was carried out in 40 patients with cystic fibrosis to determine how many of them showed evidence of pulmonary hypertrophic osteoarthropathy (PHOA) and whether pulmonary function abnormalities, sputum cultures, or a history of joint or bone symptoms could be used to aid in its diagnosis. This survey indicates...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.135.3.7384450
更新日期:1980-06-01 00:00:00
abstract:PURPOSE:To retrospectively determine the incidence of nephrogenic systemic fibrosis (NSF) in a large academic medical center after the adoption of restrictive gadolinium-based contrast agent (GBCA) administration guidelines. MATERIALS AND METHODS:For this retrospective HIPAA-compliant study, institutional review board...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.11102340
更新日期:2011-07-01 00:00:00