Recurrent symptomatic high-grade intracranial stenoses: safety and efficacy of undersized stents--initial experience.

Abstract:

PURPOSE:To prospectively evaluate the safety and efficacy of undersized stents used in patients with high-grade intracranial stenosis and recurrent ischemic symptoms who are undergoing medical treatment. MATERIALS AND METHODS:In 18 patients (13 men, five women; age range, 51-82 years), 20 high-grade (>70%) intracranial stenoses were selected for stent placement. All patients had transient ischemic symptoms or minor strokes while undergoing combined antithrombotic therapy with acetylsalicylic acid plus clopidogrel or anticoagulation therapy with warfarin or heparin plus acetylsalicylic acid. Technical success was defined as reaching the target lesion and deploying a stent, with a residual stenosis of less than 50%. The diameter of the stent was 0.5-mm smaller than the measured diameter of the normal adjacent vessel to avoid dissection and vessel rupture. Primary endpoints for safety evaluation were the combined incidence of death or major or minor stroke at 30 days; for efficacy evaluation, the primary endpoint was the incidence of any stroke in the treated vascular territory within the first 6 months. Statistical evaluation of the reduction of stenosis was performed. RESULTS:In 18 of 20 stenoses, a stent was placed and the degree of stenosis was reduced from a median of 82% (range, 72%-97%) to a median of 16% (5%-40%; P <.001). The technical success rate was 90%. One patient had a parenchymal hemorrhage in a preexisting infarct on the 2nd day. Thus, the 30-day combined stroke and death rate was 6%. No immediate complication, thromboembolism, dissection compromising blood flow, or vessel rupture occurred during these procedures. Within the first 6 months after intervention, no patient had new ischemic symptoms in the treated vascular territory. CONCLUSION:In selected patients with recurrent ischemic events due to high-grade intracranial stenosis, undersized stent placement holds promise as an effective and safe procedure.

journal_name

Radiology

journal_title

Radiology

authors

de Rochemont Rdu M,Turowski B,Buchkremer M,Sitzer M,Zanella FE,Berkefeld J

doi

10.1148/radiol.2311030183

subject

Has Abstract

pub_date

2004-04-01 00:00:00

pages

45-9

issue

1

eissn

0033-8419

issn

1527-1315

pii

231/1/45

journal_volume

231

pub_type

杂志文章
  • Characterization of prostate lesions as benign or malignant at multiparametric MR imaging: comparison of three scoring systems in patients treated with radical prostatectomy.

    abstract:PURPOSE:To compare the subjective Likert score to the Prostate Imaging Reporting and Data System (PIRADS) and morphology-location-signal intensity (MLS) scores for categorization of prostate lesions as benign or malignant at multiparametric magnetic resonance (MR) imaging. MATERIALS AND METHODS:Two hundred fifteen pat...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.14131584

    authors: Vaché T,Bratan F,Mège-Lechevallier F,Roche S,Rabilloud M,Rouvière O

    更新日期:2014-08-01 00:00:00

  • Can sonographers reliably identify anatomic features associated with Down syndrome in fetuses?

    abstract::To standardize femur measurement for the identification of fetuses at risk for Down syndrome, sonographers of varying professional experience and background measured the femurs of 20 Down syndrome fetuses and 709 normal control fetuses. A regression analysis performed to compare biparietal diameter to femur length on ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.173.2.2529580

    authors: Benacerraf BR,Cnann A,Gelman R,Laboda LA,Frigoletto FD Jr

    更新日期:1989-11-01 00:00:00

  • BRCA Mutation Carriers: Breast and Ovarian Cancer Screening Guidelines and Imaging Considerations.

    abstract::Patients who carry the BRCA1 and BRCA2 gene mutations have an underlying genetic predisposition for breast and ovarian cancers. These deleterious genetic mutations are the most common genes implicated in hereditary breast and ovarian cancers. This monograph summarizes the evidence behind current screening recommendati...

    journal_title:Radiology

    pub_type: 杂志文章,评审

    doi:10.1148/radiol.2019181814

    authors: Elezaby M,Lees B,Maturen KE,Barroilhet L,Wisinski KB,Schrager S,Wilke LG,Sadowski E

    更新日期:2019-06-01 00:00:00

  • Progression of renal artery fibromuscular dysplasia in 42 patients as seen on angiography.

    abstract::Forty-two hypertensive patients with fibromuscular dysplasia who had angiographic evidence of the development of new disease or of the progression of existing disease were studied. Renal arterial disease was classified as medial fibroplasia with aneurysms (12 patients), subadventitial fibroplasia (24 patients), or int...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.139.1.7208940

    authors: Goncharenko V,Gerlock AJ Jr,Shaff MI,Hollifield JW

    更新日期:1981-04-01 00:00:00

  • How I do it: evaluating renal masses.

    abstract::With modern computed tomography (CT) and magnetic resonance (MR) imaging equipment, the diagnosis of most renal masses is usually straightforward and accurate. The major question to be answered is whether the mass represents a surgical or nonsurgical lesion or, in some cases, if follow-up studies are necessary. This e...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2362040218

    authors: Israel GM,Bosniak MA

    更新日期:2005-08-01 00:00:00

  • Hepatocellular carcinoma: are combined CT during arterial portography and CT hepatic arteriography in addition to triple-phase helical CT all necessary for preoperative evaluation?

    abstract:PURPOSE:To determine whether the combination of CT during arterial portography (CTAP) and CT hepatic arteriography (CTHA) provides an added benefit to triple-phase helical CT (THCT) alone in the preoperative evaluation of hepatocellular carcinoma (HCC). MATERIALS AND METHODS:Fifty-two consecutive patients with patholo...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.215.2.r00ma30373

    authors: Jang HJ,Lim JH,Lee SJ,Park CK,Park HS,Do YS

    更新日期:2000-05-01 00:00:00

  • Pulmonary manifestations of blastomycosis. Radiological support of a new concept.

    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

    authors: Rabinowitz JG,Busch J,Buttram WR

    更新日期:1976-07-01 00:00:00

  • BI-RADS 3, 4, and 5 lesions: value of US in management--follow-up and outcome.

    abstract:PURPOSE:To evaluate the use, final outcome, and positive biopsy rate of American College of Radiology ultrasonographic (US) Breast Imaging Reporting and Data System (BI-RADS) categories 3, 4, and 5 recommended for breast masses. MATERIALS AND METHODS:At US, consecutive masses, palpable and nonpalpable, categorized as ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2483071786

    authors: Raza S,Chikarmane SA,Neilsen SS,Zorn LM,Birdwell RL

    更新日期:2008-09-01 00:00:00

  • A Deep Learning Model to Predict a Diagnosis of Alzheimer Disease by Using 18F-FDG PET of the Brain.

    abstract::Purpose To develop and validate a deep learning algorithm that predicts the final diagnosis of Alzheimer disease (AD), mild cognitive impairment, or neither at fluorine 18 (18F) fluorodeoxyglucose (FDG) PET of the brain and compare its performance to that of radiologic readers. Materials and Methods Prospective 18F-FD...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2018180958

    authors: Ding Y,Sohn JH,Kawczynski MG,Trivedi H,Harnish R,Jenkins NW,Lituiev D,Copeland TP,Aboian MS,Mari Aparici C,Behr SC,Flavell RR,Huang SY,Zalocusky KA,Nardo L,Seo Y,Hawkins RA,Hernandez Pampaloni M,Hadley D,Franc BL

    更新日期:2019-02-01 00:00:00

  • Imaging Publications in the COVID-19 Pandemic: Applying New Research Results to Clinical Practice.

    abstract:: Online supplemental material is available for this article. ...

    journal_title:Radiology

    pub_type: 杂志文章,评审

    doi:10.1148/radiol.2020201724

    authors: Eng J,Bluemke DA

    更新日期:2020-10-01 00:00:00

  • Stage T1 non-small cell lung cancer: preoperative mediastinal nodal staging with integrated FDG PET/CT--a prospective study.

    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

    authors: Kim BT,Lee KS,Shim SS,Choi JY,Kwon OJ,Kim H,Shim YM,Kim J,Kim S

    更新日期:2006-11-01 00:00:00

  • Intra-Animal Comparison between Three-dimensional Molecularly Targeted US and Three-dimensional Dynamic Contrast-enhanced US for Early Antiangiogenic Treatment Assessment in Colon Cancer.

    abstract::Purpose To perform an intra-animal comparison between (a) three-dimensional (3D) molecularly targeted ultrasonography (US) by using clinical-grade vascular endothelial growth factor receptor 2 (VEGFR2)-targeted microbubbles and (b) 3D dynamic contrast material-enhanced (DCE) US by using nontargeted microbubbles for as...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2016160032

    authors: Wang H,Lutz AM,Hristov D,Tian L,Willmann JK

    更新日期:2017-02-01 00:00:00

  • Klatskin tumors of the bile ducts: sonographic appearance.

    abstract::The authors present 3 cases of surgically proved Klatskin tumor diagnosed by ultrasound alone. Sonographic features of these tumors include (a) dilatation of the intrahepatic biliary ducts but not the extrahepatic duct, (b) non-union of the right and left hepatic ducts, and (c) small, solid masses at the hepatic hilus...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.148.3.6308710

    authors: Meyer DG,Weinstein BJ

    更新日期:1983-09-01 00:00:00

  • Evaluation of an emergency radiology quality assurance program at a level I trauma center: abdominal and pelvic CT studies.

    abstract:PURPOSE:To evaluate the use of a redundant system in improving quality of care in the trauma setting by examining a subset of our quality assurance program. MATERIALS AND METHODS:Five hundred thirty-one consecutive abdominal and pelvic CT reports obtained in patients with trauma at a level I trauma center from August ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2241011470

    authors: Yoon LS,Haims AH,Brink JA,Rabinovici R,Forman HP

    更新日期:2002-07-01 00:00:00

  • Collimator misalignment in high energy therapy machines.

    abstract::Measurements of the intensity distribution of a 60-Co beam revealed a significant field distortion caused by minor misalignment of the collimator assembly which was not detected by routine methods. Accurate monitoring of radiation intensity distribution and periodic visual inspection of collimators are suggested for ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/116.1.226

    authors: Zeman GH,Rao GU,Hazra TA

    更新日期:1975-07-01 00:00:00

  • Pulmonary Hypertension: A Nomogram Based on CT Pulmonary Angiographic Data for Prediction in Patients without Pulmonary Embolism.

    abstract:PURPOSE:To use cardiovascular data from computerized tomographic (CT) pulmonary angiography for facilitating the identification of pulmonary hypertension (PH) in patients without acute pulmonary embolism. MATERIALS AND METHODS:The institutional human research committee approved this retrospective study; informed conse...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.15141269

    authors: Aviram G,Shmueli H,Adam SZ,Bendet A,Ziv-Baran T,Steinvil A,Berliner AS,Nesher N,Ben-Gal Y,Topilsky Y

    更新日期:2015-10-01 00:00:00

  • Preoperative detection and localization of accessory pudendal artery with contrast-enhanced MR angiography.

    abstract:PURPOSE:To evaluate the diagnostic performance of contrast material-enhanced magnetic resonance (MR) angiography for preoperative detection and localization of accessory pudendal arteries (APAs) in patients with prostate cancer. MATERIALS AND METHODS:This prospective study was approved by the institutional review boar...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.11110934

    authors: Whang SY,Sung DJ,Lee SA,Park BJ,Kim MJ,Cho SB,Kim YH,Cheon J

    更新日期:2012-03-01 00:00:00

  • Gaucher disease: sonographic appearance of the spleen.

    abstract::Ultrasonographic (US) examinations of the upper abdomen were performed in 80 patients with Gaucher disease. Of the 49 patients that had not undergone splenectomy, 47 had splenic enlargement. Sixteen patients had multiple lesions in the spleen. Most patients had discrete hypoechoic lesions that corresponded pathologica...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.160.3.3526400

    authors: Hill SC,Reinig JW,Barranger JA,Fink J,Shawker TH

    更新日期:1986-09-01 00:00:00

  • Radiofrequency ablation as a substitute for surgery in elderly patients with nonresected breast cancer: pilot study with long-term outcomes.

    abstract:PURPOSE:To determine the efficacy and tolerance of ultrasonography (US)-guided percutaneous radiofrequency (RF) ablation with endocrine therapy in elderly patients with breast cancer who decline or are not candidates for surgery. MATERIALS AND METHODS:Internal ethics committee approval was obtained, and patients gave ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.12111303

    authors: Palussière J,Henriques C,Mauriac L,Asad-Syed M,Valentin F,Brouste V,Mathoulin-Pélissier S,Tunon de Lara C,Debled M

    更新日期:2012-08-01 00:00:00

  • Osteosarcoma: angiographic assessment of response to preoperative chemotherapy.

    abstract::Adjuvant chemotherapy prolongs the survival of patients with high-grade osteosarcoma. Preoperative chemotherapy allows identification of effective agents for adjuvant chemotherapy based on response of the primary tumor. Preoperative determination of tumor response has therapeutic implications, and angiography offers a...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.170.3.2916040

    authors: Carrasco CH,Charnsangavej C,Raymond AK,Richli WR,Wallace S,Chawla SP,Ayala AG,Murray JA,Benjamin RS

    更新日期:1989-03-01 00:00:00

  • Iliac arterial occlusive disease: cost-effectiveness analysis of stent placement versus percutaneous transluminal angioplasty. Dutch Iliac Stent Trial Study Group.

    abstract:PURPOSE:To evaluate the relative benefits and cost-effectiveness of treating iliac arterial occlusive disease with various interventions. MATERIALS AND METHODS:Cost-effectiveness was analyzed in a hypothetical cohort of patients with intermittent claudication caused by an iliac arterial stenosis. Primary stent placeme...

    journal_title:Radiology

    pub_type: 杂志文章,meta分析

    doi:10.1148/radiology.208.3.9722840

    authors: Bosch JL,Tetteroo E,Mali WP,Hunink MG

    更新日期:1998-09-01 00:00:00

  • Method for measuring three-dimensional motion with tagged MR imaging.

    abstract::Recent methods of magnetic resonance imaging involve the placement of a grid of planes of saturation over the imaging plane; distortion of the grid corresponds to tissue displacement in two dimensions. An extension to this method that allows measurement of motion in the third dimension involves a second acquisition th...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.181.2.1924810

    authors: Pipe JG,Boes JL,Chenevert TL

    更新日期:1991-11-01 00:00:00

  • Evaluation of a 10-minute comprehensive MR imaging examination of the upper abdomen.

    abstract:PURPOSE:To determine whether a 10-minute magnetic resonance (MR) imaging examination of the upper abdomen provides sufficiently comprehensive information to replace a longer MR protocol. MATERIALS AND METHODS:Images obtained with selected breathing-independent and breath hold MR sequences, with 2 minutes of total acqu...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.211.1.r99ap32189

    authors: Semelka RC,Balci NC,Op de Beeck B,Reinhold C

    更新日期:1999-04-01 00:00:00

  • Lumbar myelography with iohexol and metrizamide: a comparative multicenter prospective study.

    abstract::Diagnostic quality of radiographs and adverse reactions associated with the use of metrizamide and iohexol as contrast agents in lumbar myelography were compared in a prospective randomized double blind study in 350 patients at seven centers. The contrast media were administered in comparable volumes at a concentratio...

    journal_title:Radiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1148/radiology.151.3.6371890

    authors: Kieffer SA,Binet EF,Davis DO,Gabrielsen TO,Kido DK,Latchaw RE,Turski PA,Shaw DD

    更新日期:1984-06-01 00:00:00

  • Urinary tract after abdomino-perineal resection.

    abstract::Uroradiological examinations on 33 patients subjected to abdomino-perineal resection were analyzed. The most common finding was medial displacement of both ureters, with the right one frequently crossing the midline. Bladder deformity, sometimes severe, was present in all patients. Localized ureteral narrowing due to ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/128.2.345

    authors: Barbaric ZL,Wolfe DE,Segal AJ

    更新日期:1978-08-01 00:00:00

  • Acute appendicitis: high-resolution real-time US findings.

    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

    authors: Jeffrey RB Jr,Laing FC,Lewis FR

    更新日期:1987-04-01 00:00:00

  • Stereotactic core biopsy breast and blood cell by-products: a source of material for molecular genetics research--initial experience.

    abstract::Stereotactic core biopsy washings and blood drop samples, routinely discarded by-products, provide satisfactory fresh cellular material for flow cytometry and molecular genetics microsatellite polymerase chain reaction (PCR) analysis for detection of loss of DNA alleles (loss of heterozygosity). Cytokeratin-positive (...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.218.3.r01mr11881

    authors: Stomper PC,Stewart CC,Stoler DL

    更新日期:2001-03-01 00:00:00

  • Contrast medium accumulation and washout in canine brain tumors and irradiated normal brain: a CT study of kinetics.

    abstract::Kinetics of an iodinated contrast medium were evaluated quantitatively as a function of time up to one hour after intravenous infusion in the brains of dogs with experimentally induced radiation damage and dogs with spontaneous brain tumor. Radiation damage was characterized by an increase in iodine accumulation soon ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.151.1.6701300

    authors: Fike JR,Cann CE

    更新日期:1984-04-01 00:00:00

  • Volume-based parameters measured by using FDG PET/CT in patients with stage I NSCLC treated with stereotactic body radiation therapy: prognostic value.

    abstract:PURPOSE:To evaluate the prognostic importance and predictive performance of volume-based parameters of fluorine 18 fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) in patients with stage I non-small cell lung cancer (NSCLC) after stereotactic body radiation therapy (SBRT). MATERIALS...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.13130652

    authors: Satoh Y,Onishi H,Nambu A,Araki T

    更新日期:2014-01-01 00:00:00

  • US Time-Harmonic Elastography for the Early Detection of Glomerulonephritis.

    abstract::Background Glomerulonephritis refers to renal diseases characterized by glomerular and tubulointerstitial fibrosis. Multifrequency US time-harmonic elastography enables the noninvasive quantification of tissue elasticity. Purpose To assess the diagnostic performance of US time-harmonic elastography for the early detec...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2019182574

    authors: Grossmann M,Tzschätzsch H,Lang ST,Guo J,Bruns A,Dürr M,Hoyer BF,Grittner U,Lerchbaumer M,Nguyen Trong M,Schultz M,Hamm B,Braun J,Sack I,Marticorena Garcia SR

    更新日期:2019-09-01 00:00:00