Valve and great vessel stenosis: assessment with MR jet velocity mapping.

abstract：:While invasive imaging techniques, especially selective conventional coronary angiography, will remain vital to planning and guiding catheter-based and surgical treatment of significantly stenotic coronary lesions, the comprehensive and serial assessment of asymptomatic or minimally symptomatic stages of coronary arte...

journal_title：Radiology

authors： Schoenhagen P,Halliburton SS,Stillman AE,Kuzmiak SA,Nissen SE,Tuzcu EM,White RD

更新日期：2004-07-01 00:00:00

abstract：:Sixteen patients with cirrhosis of the liver underwent cranial magnetic resonance (MR) imaging and transarterial portography to evaluate the relationship between basal ganglia lesions and portal-systemic collateral vessels. No neuropsychiatric disturbance was observed in any of the patients at the time of the MR exami...

journal_title：Radiology

authors： Inoue E,Hori S,Narumi Y,Fujita M,Kuriyama K,Kadota T,Kuroda C

更新日期：1991-05-01 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

authors： Amin Z,Donald JJ,Masters A,Kant R,Steger AC,Bown SG,Lees WR

更新日期：1993-05-01 00:00:00

abstract：PURPOSE:To evaluate the magnetic resonance (MR) imaging features of the developing femur in fetal pig specimens. MATERIALS AND METHODS:MR images of 15 fetal pig femurs, which were categorized into three groups of specimens representing each third of the gestational period, were used to compare increasing femoral lengt...

journal_title：Radiology

authors： Connolly SA,Jaramillo D,Hong JK,Shapiro F

更新日期：2004-11-01 00:00:00

abstract：:Using a dose fractionation scheme patterned after the current regimen for treatment of disseminated non-Hodgkin lymphoma, the authors studied the effects of irradiation on progenitor and effector cells for hematopoiesis in five-month-old BC3F1 mice. Fractions of 20 or 50 rad (0.2 or 0.5 Gy) total body irradiation were...

journal_title：Radiology

authors： Melamed JS,Chen MG,Brown JW,Katagiri CA

更新日期：1980-02-01 00:00:00

abstract：:Postoperative irradiation reduces the local recurrence rate for malignant salivary gland tumors. Less extensive surgery followed by immediate radiotherapy is possible without decreasing local control; moreover, cosmetic appearance and physiological function are preserved. Local tumor control was achieved in 16 out of ...

journal_title：Radiology

authors： Chung CT,Sagerman RH,Ryoo MC,King GA,Yu WS,Dalal PS

更新日期：1982-10-01 00:00:00

abstract：:Radiologic evaluation of frontal sinus fractures is instrumental in determining the need for surgery. Computed tomography (CT) is an excellent modality for evaluation of frontal sinus trauma, particularly for anterior and posterior wall fractures. However, fractures of the nasofrontal duct are more difficult to deline...

journal_title：Radiology

authors： Harris L,Marano GD,McCorkle D

更新日期：1987-10-01 00:00:00

abstract：PURPOSE:To evaluate the potential of quantitative susceptibility (QS) and R2* mapping as surrogate biomarkers of clinically relevant, age-adjusted demyelination and iron deposition in multiple sclerosis (MS). MATERIALS AND METHODS:All study participants gave written informed consent, and the study was approved by the ...

journal_title：Radiology

authors： Rudko DA,Solovey I,Gati JS,Kremenchutzky M,Menon RS

更新日期：2014-09-01 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

authors： Pickhardt PJ,Fisher AJ,Balfe DM,Dehner LP,Huettner PC

更新日期：1999-03-01 00:00:00

abstract：:Renal uptake of 99mTc-sulfur colloid during liver and spleen imaging was observed in 4 patients; all had moderate to severe congestive heart failure. Four similar patients with this association have been reported. Although the exact mechanism of colloid uptake by the kidneys is not known, an association with congestiv...

journal_title：Radiology

authors： Klingensmith WC 3rd,Datu JA,Burdick DC

更新日期：1978-04-01 00:00:00

abstract：PURPOSE:To investigate if magnetic resonance (MR) enteroclysis can be performed routinely and to compare MR enteroclysis findings with those of conventional enteroclysis or surgery. MATERIALS AND METHODS:MR enteroclysis was prospectively performed in 30 patients with symptoms of inflammatory bowel disease or small-bow...

journal_title：Radiology

authors： Umschaden HW,Szolar D,Gasser J,Umschaden M,Haselbach H

更新日期：2000-06-01 00:00:00

abstract：:A consensus does not exist as to the optimal contrast agent for hysterosalpingography. This study was undertaken to evaluate the early and delayed inflammatory responses of the peritoneal surfaces to various types of iodinated contrast media. Guinea pigs received intraperitoneal injections of lactated Ringer solution,...

journal_title：Radiology

authors： Eisenberg AD,Winfield AC,Page DL,Holburn GE,Schifter T,Segars JH

更新日期：1989-07-01 00:00:00

abstract：PURPOSE:To establish whether early use of magnetic resonance (MR) imaging or computed tomography (CT) influences treatment and outcome of patients with low back pain (LBP) and whether it is cost-effective. MATERIALS AND METHODS:In a multicenter randomized study, two imaging policies for LBP were compared in 782 partic...

journal_title：Radiology

authors： Gilbert FJ,Grant AM,Gillan MG,Vale LD,Campbell MK,Scott NW,Knight DJ,Wardlaw D,Scottish Back Trial Group.

更新日期：2004-05-01 00:00:00

abstract：:Radiographs and CT images taken during oral cholecystography in dogs were interpreted in an independent, blind fashion by three radiologists on two occasions and visual assessment of gallbladder density compared to the actual CT values. While there was significant intra- and inter-observer variation, the mean scores f...

journal_title：Radiology

authors： Fon GT,Hunter TB,Berk RN,Patton DD,Capp MP

更新日期：1982-07-01 00:00:00

abstract：PURPOSE:To measure and elucidate the mechanisms of presumed mediators of unexpected severe, immediate reactions to iodinated contrast materials. MATERIALS AND METHODS:In a multicenter study, 20 patients with mild to severe reactions to iodinated contrast material and 20 control subjects without reactions were evaluate...

journal_title：Radiology

authors： Laroche D,Aimone-Gastin I,Dubois F,Huet H,Gérard P,Vergnaud MC,Mouton-Faivre C,Guéant JL,Laxenaire MC,Bricard H

更新日期：1998-10-01 00:00:00

abstract：PURPOSE:To identify opportunities for improving patient-centered communication about diagnostic imaging tests that involve the use of radiation in a cancer care setting. MATERIALS AND METHODS:Institutional review board approval and informed consent were obtained for this HIPAA-compliant study. Patient knowledge, infor...

journal_title：Radiology

authors： Thornton RH,Dauer LT,Shuk E,Bylund CL,Banerjee SC,Maloney E,Fox LB,Beattie CM,Hricak H,Hay J

更新日期：2015-05-01 00:00:00

abstract：:Six cases of acoustic neurinoma are presented in which the tumor is supplied by branches of the external carotid artery, with or without supply from the internal carotid artery. A new angiographic protocol for the investigation of masses in the cerebellopontine angle is suggested. According to early results of the CT ...

journal_title：Radiology

authors： Théron J,Lasjaunias P

更新日期：1976-01-01 00:00:00

abstract：:In a study of 726 patients, xeroradiography of the thyroid using a modified oblique projection was found to be superior to conventional soft-tissue radiography in detecting calcification in thyroid tumors because of edge enhancement. This facilitated a diagnosis of carcinoma in 75% of 68 primary tumors and 55% of 33 r...

journal_title：Radiology

authors： Kasai N,Tsuya A

更新日期：1981-11-01 00:00:00

abstract：PURPOSE:To investigate the diagnostic value of technetium 99m-labeled human serum albumin (HSA) scintigraphy in a group of patients suspected of having protein-losing enteropathy (PLE). MATERIALS AND METHODS:After intravenous injection of 740 MBq of freshly prepared (99m)Tc HSA, serial images of the abdomen were obtai...

journal_title：Radiology

authors： Chiu NT,Lee BF,Hwang SJ,Chang JM,Liu GC,Yu HS

更新日期：2001-04-01 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

authors： Winston CB,Schwartz LH,Fong Y,Blumgart LH,Panicek DM

更新日期：1999-01-01 00:00:00

abstract：PURPOSE:To use directed biopsy sampling to determine whether microvascular assessment within gliomas, by means of ultrahigh-field-strength high-spatial-resolution gradient-echo (GRE) magnetic resonance (MR) imaging at 8 T, correlates with histopathologic assessment of microvascularity. MATERIALS AND METHODS:The study ...

journal_title：Radiology

authors： Christoforidis GA,Yang M,Abduljalil A,Chaudhury AR,Newton HB,McGregor JM,Epstein CR,Yuh WT,Watson S,Robitaille PM

更新日期：2012-07-01 00:00:00

abstract：:The preangiographic diagnosis of cerebral dural arteriovenous fistula (DAVF) can be difficult. The magnetic resonance (MR) images of 12 patients with angiographically proved DAVF were evaluated to characterize the appearance of these lesions and to identify those patients at increased risk for complications. Patients ...

journal_title：Radiology

authors： De Marco JK,Dillon WP,Halback VV,Tsuruda JS

更新日期：1990-04-01 00:00:00

abstract：:Ultrasonic features of 21 surgically confirmed pyogenic liver abscesses in 18 patients were analyzed. Typical lesions were round or ovoid with a discrete, irregular, echo-poor margin. The number and intensity of internal echoes and sound transmission were variable. Such lesions can be aspirated percutaneously for defi...

journal_title：Radiology

authors： Newlin N,Silver TM,Stuck KJ,Sandler MA

更新日期：1981-04-01 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

authors： Alavi A,Devenney JE,Arendale S,Zimmerman RA

更新日期：1976-12-01 00:00:00

abstract：PURPOSE:To assess whether a combination of in vivo anatomic and functional imaging can help quantify expression of somatostatin receptor type 2 (SSTR2)-based reporters after in vivo gene transfer. MATERIALS AND METHODS:All animal experiments were approved by an institutional animal care and use committee. Six nude mic...

journal_title：Radiology

authors： Singh SP,Yang D,Ravoori M,Han L,Kundra V

更新日期：2009-09-01 00:00:00

abstract：:A prone-angled compression radiographic view was compared with traditional radiographs in 17 patients with suspected Crohn disease. The angled view was clearly superior to the posteroanterior view in visualization of disease in the terminal ileum and small bowel and was superior to spot radiographs in six of 10 patien...

journal_title：Radiology

authors： Yue NC,Jones B

更新日期：1993-05-01 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

authors： Yamada I,Himeno Y,Suzuki S,Matsushima Y

更新日期：1995-10-01 00:00:00

abstract：:Purpose To compare PET/MR hypoperfusion and hypometabolism in patients with Alzheimer disease (AD) and mild cognitive impairment (MCI) compared with healthy control (HC) participants. Materials and Methods Maps of cerebral blood flow (CBF; pulsed arterial spin-labeling [ASL] MRI), glucose metabolism (fluorine 18 [18F]...

journal_title：Radiology

authors： Riederer I,Bohn KP,Preibisch C,Wiedemann E,Zimmer C,Alexopoulos P,Förster S

更新日期：2018-07-01 00:00:00

abstract：:Stitch granuloma is rarely a consideration in the differential diagnosis of stomach lesions. This report documents the occurrence of a granulomatous mass of gastric origin simulating an intramural tumor. ...

journal_title：Radiology

authors： Belleza NA,Lowman RM

更新日期：1978-04-01 00:00:00

abstract：:Purpose To determine if the change in tumor apparent diffusion coefficient (ADC) at diffusion-weighted (DW) MRI is predictive of pathologic complete response (pCR) to neoadjuvant chemotherapy for breast cancer. Materials and Methods In this prospective multicenter study, 272 consecutive women with breast cancer were e...

journal_title：Radiology

authors： Partridge SC,Zhang Z,Newitt DC,Gibbs JE,Chenevert TL,Rosen MA,Bolan PJ,Marques HS,Romanoff J,Cimino L,Joe BN,Umphrey HR,Ojeda-Fournier H,Dogan B,Oh K,Abe H,Drukteinis JS,Esserman LJ,Hylton NM,ACRIN 6698 Trial Team a

更新日期：2018-12-01 00:00:00