Abstract:
:The techniques and results of percutaneous transluminal angioplasty (TPA) of the renal arteries were evaluated in 20 hypertensive patients with 25 renal artery stenoses. Follow-up angiograms have been obtained in nine patients. Many patients had evidence of both essential and angiotensinogenic hypertension. Eleven patients had evidence of severe diffuse atherosclerotic disease, and nine patients had evidence of renal insufficiency. The mean systolic pressures before and after PTA were 203.80 and 150.30, respectively. The mean diastolic pressures before and after PTA were 117.45 and 85.95, respectively. Ten patients were cured. Six patients with long histories of hypertension and a recent increase in blood pressure were classified as having blood pressure easier to control with antihypertensive medication following PTA. Three patients failed to respond to PTA, and one patient was a technical failure. The advantages of this technique include avoidance of general anesthesia and a major surgical procedure, decreased cost, and a shortened hospital stay. The technique can be easily repeated if necessary, and future surgical intervention is not precluded if the method is unsuccessful.
journal_name
Radiologyjournal_title
Radiologyauthors
Tegtmeyer CJ,Dyer R,Teates CD,Ayers CR,Carey RM,Wellons HA Jr,Stanton LWdoi
10.1148/radiology.135.3.7384440subject
Has Abstractpub_date
1980-06-01 00:00:00pages
589-99issue
3eissn
0033-8419issn
1527-1315journal_volume
135pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::Eight patients with aneurysms of the right ventricular outflow tract patch following tetralogy of Fallot repair were found to have residual distal obstructions. The site of such an obstruction must be carefully documented preoperatively because failure to relieve significant distal obstruction may result in recurrent ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.167.1.3347710
更新日期:1988-04-01 00:00:00
abstract:PURPOSE:To investigate whether cerebral blood volume (CBV), peak height (PH), and percentage of signal intensity recovery (PSR) measurements derived from the results of T2-weighted dynamic susceptibility-weighted contrast material-enhanced (DSC) magnetic resonance (MR) imaging performed after external beam radiation th...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2532090007
更新日期:2009-11-01 00:00:00
abstract::Using a method combining the velocity of ultrasound and photon absorptiometry in the human radius in vivo, the authors measured the speed of sound in bone (U) and bone mineral content (BMC). From these measurements and a "simple" bone model, they then computed the bone mineral density, compact bone density, and modulu...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.138.3.7465850
更新日期:1981-03-01 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::Twelve primary fourth ventricle tumors and 22 medulloblastomas occupying mainly the fourth ventricle were analyzed, with emphasis on the differential diagnosis, vascularity, and some unusual findings. Though both types of tumor often have identical manifestations, the correct diagnosis can be made in most cases by car...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/128.2.393
更新日期:1978-08-01 00:00:00
abstract:PURPOSE:To develop and evaluate a method based on ultrashort echo-time radial magnetic resonance (MR) imaging to quantify bone water (BW) concentration as a new metric of bone quality in human cortical bone in vivo. MATERIALS AND METHODS:Human subject studies were institutional review board approved and HIPAA complian...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2482071995
更新日期:2008-09-01 00:00:00
abstract:PURPOSE:To describe and evaluate a method of tomosynthesis breast imaging with a full-field digital mammographic system. MATERIALS AND METHODS:In this tomosynthesis method, low-radiation-dose images were acquired as the x-ray source was moved in an arc above the stationary breast and digital detector. A step-and-expos...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.205.2.9356620
更新日期:1997-11-01 00:00:00
abstract::Multicenter, collaborative studies offer an effective way to meet the growing need for timely and generalizable clinical evaluations of imaging technologies. This article discusses issues of study design, statistical analysis, organization, and day-to-day group operation for collaborative prospective clinical evaluati...
journal_title:Radiology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1148/radiology.175.2.2183290
更新日期:1990-05-01 00:00:00
abstract:PURPOSE:To determine the effectiveness of magnetic resonance (MR) imaging in the diagnosis of anterolateral impingement of the ankle. MATERIALS AND METHODS:MR images were reviewed in 12 patients (12 ankles) with arthroscopically proved anterolateral impingement and in 19 control subjects (20 ankles) with diagnoses oth...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.207.2.9577480
更新日期:1998-05-01 00:00:00
abstract::This prospective study compares immediate and delayed patient discomfort in 177 patients following shoulder arthrography using intraarticular combinations of metrizamide, meglumine/sodium diatrizoate, meglumine diatrizoate, lidocaine, epinephrine, and air. Patients receiving conventional ionic monomeric positive contr...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.154.2.3966120
更新日期:1985-02-01 00:00:00
abstract::Although intrauterine hydronephrosis can be detected readily by ultrasound, follow-up ultrasound evaluation on the first day of life may show a falsely normal-appearing kidney. The authors present three infants in whom subsequent studies confirmed the presence of upper urinary tract obstruction. It is postulated that ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.152.2.6539930
更新日期:1984-08-01 00:00:00
abstract::In 2017, the Thyroid Imaging Reporting and Data System (TI-RADS) Committee of the American College of Radiology (ACR) published a white paper that presented a new risk-stratification system for classifying thyroid nodules on the basis of their appearance at ultrasonography (US). In ACR TI-RADS, points in five feature ...
journal_title:Radiology
pub_type: 杂志文章,评审
doi:10.1148/radiol.2017171240
更新日期:2018-04-01 00:00:00
abstract::One hundred thirty patients with a diversity of knee joint injuries were evaluated with a high-resolution magnetic resonance (MR) imaging technique. The authors report the accuracy of this technique in the evaluation of 105 patients with suspected meniscal tears, 26 patients with suspected cruciate ligament tears, and...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.162.2.3797670
更新日期:1987-02-01 00:00:00
abstract::Portosystemic venous collaterals were studied with sonography in 40 patients with known portal hypertension. Eight patients had technically inadequate scans, while 32 had optimal scans. Sixty groups of venous collaterals were identified. At least one collateral pathway was seen in 28 patients, for a sensitivity of 88%...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.146.1.6849040
更新日期:1983-01-01 00:00:00
abstract:PURPOSE:To compare the usefulness of computed tomography (CT) and gadolinium-enhanced magnetic resonance (MR) imaging in the detection of neoplastic invasion of laryngeal cartilage. MATERIALS AND METHODS:In a prospective study, 53 patients with carcinoma of the larynx or piriform sinus underwent CT and MR imaging befo...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.194.3.7862960
更新日期:1995-03-01 00:00:00
abstract:PURPOSE:To determine if the intradecidual sign at sonography is effective in the diagnosis of early intrauterine pregnancy. MATERIALS AND METHODS:In 102 pregnant patients, transvaginal sonography revealed an intrauterine fluid collection without a yolk sac or embryo. Four observers (experienced sonologist, body imagin...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.204.3.9280240
更新日期:1997-09-01 00:00:00
abstract::While computed tomography (CT) is an accepted procedure for investigation of the inferior vena cava (IVC), little attention has been given to its use in IVC thrombosis secondary to proximal extension of thrombi within the lower venous system. Four cases are presented and several advantages of CT over standard contrast...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.140.2.7255720
更新日期:1981-08-01 00:00:00
abstract::At birth, premature infants of 25-29 weeks gestation, at high risk for development of neonatal respiratory distress syndrome (RDS), were given a single dose (90 mg) of calf lung surfactant extract (CLSE) by intratracheal instillation. The frequency and severity of RDS were assessed with use of a simple radiographic sc...
journal_title:Radiology
pub_type: 临床试验,杂志文章
doi:10.1148/radiology.165.1.3306780
更新日期:1987-10-01 00:00:00
abstract::Two cases of vertebral sarcoidosis in pediatric patients are presented. All such patients reported have been black, 13-15 years old, and have a history of back pain. Radiographs of the involved vertebrae show primarily lytic destruction with sclerotic borders in some of the lesions. Fungal infections, tuberculosis, py...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/121.1.153
更新日期:1976-10-01 00:00:00
abstract::A review was made of 219 transcatheter vessel occlusion procedures performed over a ten-year period for control of hemorrhage, tumor palliation, or blood supply redistribution prior to intra-arterial chemotherapy. Complete angiographic success was obtained in 85% of the procedures, with partial success in 8%; complete...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.147.1.6828710
更新日期:1983-04-01 00:00:00
abstract:PURPOSE:To determine if magnetic resonance (MR) imaging data can be used to create rigid models that are accurate representations of the right ventricular outflow tract (RVOT) and pulmonary trunk anatomy and if such models can be used to refine the selection of patients for percutaneous pulmonary valve implantation (PP...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2422051994
更新日期:2007-02-01 00:00:00
abstract::The pelvic area was prospectively examined with transabdominal and transperineal ultrasonography (US) in 22 patients referred for US evaluation for possible complications of cesarean section. The region of the uterine wound was seen with transabdominal US in all patients and with transperineal US in 20. The two in who...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.188.2.8327710
更新日期:1993-08-01 00:00:00
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
更新日期:2019-06-01 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::CT scans of 87 patients with subdural hematoma were compared to those of 393 patients with midline shift caused by other intracranial lesions with regard to attenuation changes in the lesion and the character of the ventricular deformity. Isoattenuating was exhibited by 25% of the subdural hematomas and 5% of the othe...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/130.1.149
更新日期:1979-01-01 00:00:00
abstract::Ultrasound (US) of the liver surface with a high-frequency, small-parts, short-focused probe has been proposed as a method of diagnosing cirrhosis. US of the liver was performed in 50 consecutive patients undergoing diagnostic liver biopsy to assess the clinical usefulness of this noninvasive procedure in diagnosing h...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.185.1.1523310
更新日期:1992-10-01 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:PURPOSE:To determine whether hepatosplenomegaly was a reproducible finding in seven neonates who were being treated with extracorporeal membrane oxygenation (ECMO) for respiratory failure. MATERIALS AND METHODS:The authors measured splenic and hepatic dimensions with ultrasound (US) at the time ECMO was initiated and ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.190.2.8284390
更新日期:1994-02-01 00:00:00
abstract:PURPOSE:To evaluate treatment of osteoid osteoma with computed tomography (CT)-guided percutaneous excision and immediate follow-up scintigraphy. MATERIALS AND METHODS:Sixteen consecutive adolescent and adult patients underwent CT-guided percutaneous excision of a nidus with 14-gauge biopsy cutting needles, with local...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.201.1.8816550
更新日期:1996-10-01 00:00:00
abstract::Incarcerated obturator hernia is an uncommon entity that on occasion may produce specific radiographic findings and clinical signs (Howship-Romberg sign) that permit diagnosis prior to celiotomy. A case is reported in which the diagnosis was suggested when pain in the thigh was elicited during the course of a barium e...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.172.1.2740520
更新日期:1989-07-01 00:00:00