Brain scintigraphy in recurrent medulloblastoma.

abstract：PURPOSE:To evaluate the usefulness of power Doppler ultrasonography (US) with a microbubble contrast agent in assessing the therapeutic response of hepatocellular carcinomas (HCCs) treated with percutaneous radio-frequency (RF) ablation. MATERIALS AND METHODS:Forty patients with 45 nodular HCC lesions 1.0-3.8 cm in di...

journal_title：Radiology

authors： Choi D,Lim HK,Kim SH,Lee WJ,Jang HJ,Lee JY,Paik SW,Koh KC,Lee JH

更新日期：2000-11-01 00:00:00

abstract：PURPOSE:To evaluate differences in T2 values in femoral and tibial cartilage at magnetic resonance (MR) imaging in patients with varying degrees of osteoarthritis (OA) compared with healthy subjects and to develop a mapping and display method based on calculation of T2 z scores for visual grading and assessment of cart...

journal_title：Radiology

authors： Dunn TC,Lu Y,Jin H,Ries MD,Majumdar S

更新日期：2004-08-01 00:00:00

abstract：:Background Acute stroke because of basilar artery occlusion (BAO) represents 1% of all ischemic strokes. However, recanalization rates and treatment outcome for the different pathologic subtypes of BAO stroke are not fully understood. Purpose To compare the recanalization rate and clinical outcomes of mechanical throm...

journal_title：Radiology

authors： Baik SH,Park HJ,Kim JH,Jang CK,Kim BM,Kim DJ

更新日期：2019-06-01 00:00:00

abstract：:Arthrography is considered extremely safe since reactions to intraarticular contrast media are rare. We have only seen one severe complication in the performance of more than 2,000 arthrographic procedures. To determine the incidence of complications, a questionnaire was sent to 84 radiologists experienced in arthrogr...

journal_title：Radiology

authors： Newberg AH,Munn CS,Robbins AH

更新日期：1985-06-01 00:00:00

abstract：:During the past century, imaging of the pregnant patient has been performed with radiography, scintigraphy, computed tomography, magnetic resonance imaging, and ultrasonography (US). US imaging has emerged as the primary imaging modality, because it provides real-time images at relatively low cost without the use of i...

journal_title：Radiology

authors： Benson CB,Doubilet PM

更新日期：2014-11-01 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

authors： Jeffrey RB Jr,Laing FC,Lewis FR

更新日期：1987-04-01 00:00:00

abstract：PURPOSE:To determine if the addition of three-dimensional (3D) proton magnetic resonance (MR) spectroscopic imaging to endorectal MR imaging helps diagnose extracapsular extension (ECE) of prostate cancer. MATERIALS AND METHODS:Endorectal MR imaging and 3D MR spectroscopic imaging were performed in 53 patients with pr...

journal_title：Radiology

authors： Yu KK,Scheidler J,Hricak H,Vigneron DB,Zaloudek CJ,Males RG,Nelson SJ,Carroll PR,Kurhanewicz J

更新日期：1999-11-01 00:00:00

abstract：:Noninvasive breast cancer comprises two distinct entities, lobular carcinoma in situ (LCIS) and ductal carcinoma in situ (DCIS). The increased use of screening mammography has caused more cases of noninvasive breast cancer to be discovered. However, the increased detection of LCIS and DCIS has posed problems in patien...

journal_title：Radiology

authors： Rebner M,Raju U

更新日期：1994-03-01 00:00:00

abstract：:The authors describe a method of enhancing the ease of lumbar puncture in the morbidly obese patient. In their experience, the coaxial needle technique shortens fluoroscopic and total procedure times when obtaining cerebrospinal fluid for laboratory analysis or when performing myelography. ...

journal_title：Radiology

authors： Johnson JC,Deeb ZL

更新日期：1991-06-01 00:00:00

abstract：:By performing CT scanning during contrast sialography, tumors within the parotid gland can be shown and their configuration in relation to the remaining normal salivary gland and surrounding structures can be appreciated. This permits better evaluation of the relationship of the tumor to the facial nerve, possible ext...

journal_title：Radiology

authors： Mancuso A,Rice D,Hanafee W

更新日期：1979-07-01 00:00:00

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

authors： Pipe JG,Boes JL,Chenevert TL

更新日期：1991-11-01 00:00:00

abstract：PURPOSE:To describe a program for controlling intravenous use of low-osmolar contrast agents (LOCAs). MATERIALS AND METHODS:The department of radiology at the authors' institution adopted a policy of selective use of intravenously administered LOCAs. Clinical indications for LOCA use were specified after consultation ...

journal_title：Radiology

authors： Levin DC,Gardiner GA Jr,Karasick S,Shaber GS,Wechsler RJ,McArdle GH,Lockard CD,Harford RJ

更新日期：1993-12-01 00:00:00

abstract：:Iophendylate was used to displace a full dose of metrizamide from the capacious lumbar thecal sac superiorly, outlining the conus medullaris. The method is safe, rapid, and convenient. ...

journal_title：Radiology

authors： Smith SP,Wolpert SM

更新日期：1984-12-01 00:00:00

abstract：:Background MRI with fluorine 19 (19F) probes has shown an ability to track immune cell activity with a specific, stable, and quantitative signal. In addition, the chemical shift differences of selected 19F probes make dual-probe imaging possible. To improve 19F MRI sensitivity for dual-probe imaging, optimal fluorine ...

journal_title：Radiology

authors： Chirizzi C,De Battista D,Tirotta I,Metrangolo P,Comi G,Bombelli FB,Chaabane L

更新日期：2019-05-01 00:00:00

abstract：PURPOSE:To determine the accuracy of helical computed tomography (CT) without the oral, intravenous, or rectal administration of contrast material in confirming suspected acute appendicitis. MATERIALS AND METHODS:Three hundred consecutive patients referred from the departments of surgery and emergency medicine were ex...

journal_title：Radiology

authors： Lane MJ,Liu DM,Huynh MD,Jeffrey RB Jr,Mindelzun RE,Katz DS

更新日期：1999-11-01 00:00:00

abstract：:A new catheter system was designed for percutaneous fragmentation of large pulmonary emboli. The device consists of an impeller rotating at high speed at the center of a self-expandable basket at the tip of a 7-F catheter. The highly flexible catheter was able to reach all tested embolus sites in a glass model of the ...

journal_title：Radiology

authors： Schmitz-Rode T,Günther RW

更新日期：1991-07-01 00:00:00

abstract：:The authors reviewed cranial imaging studies (radiographs, computed tomographic scans, and magnetic resonance [MR] images) in 13 infants and children with the autosomal recessive form of osteopetrosis to characterize patterns of skull base, brain, and cranial nerve involvement at presentation and with progression of d...

journal_title：Radiology

authors： Elster AD,Theros EG,Key LL,Chen MY

更新日期：1992-04-01 00:00:00

abstract：PURPOSE:To describe the timeliness of follow-up care in community-based settings among women who receive a recommendation for immediate follow-up during the screening mammography process and how follow-up timeliness varies according to facility and facility-level characteristics. MATERIALS AND METHODS:This was an inst...

journal_title：Radiology

authors： Rosenberg RD,Haneuse SJ,Geller BM,Buist DS,Miglioretti DL,Brenner RJ,Smith-Bindman R,Taplin SH,Breast Cancer Surveillance Consortium.

更新日期：2011-11-01 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

authors： Feldman L,Greenfield AJ,Waltman AC,Novelline RA,van Breda A,Luers P,Athanasoulis CA

更新日期：1983-04-01 00:00:00

abstract：:Analysis of 9 cases of bilateral bent limbs (campomelia) and dwarfism, as well as a review of the literature, indicate that campomelic syndrome appears to be a well-defined distinct disorder which the authors call long-limbed campomelic syndrome. Other neonates with congenital bent-limbed dwarfism can be classified as...

journal_title：Radiology

authors： Khajavi A,Lachman R,Rimoin D,Schimke RN,Dorst J,Handmaker S,Ebbin A,Perreault G

更新日期：1976-09-01 00:00:00

abstract：:Perfusion computed tomography (CT) is a relatively new technique that allows rapid qualitative and quantitative evaluation of cerebral perfusion by generating maps of cerebral blood flow (CBF), cerebral blood volume (CBV), and mean transit time (MTT). The technique is based on the central volume principle (CBF = CBV/M...

journal_title：Radiology

authors： Hoeffner EG,Case I,Jain R,Gujar SK,Shah GV,Deveikis JP,Carlos RC,Thompson BG,Harrigan MR,Mukherji SK

更新日期：2004-06-01 00:00:00

abstract：:Two patients with pneumothorax had ventilation-perfusion studies to rule out the possibility of pulmonary embolism; the presence of air in the pleural space was not known to the authors when the study was analyzed. A typical ventilatory pattern characterized by small volume difference at total lung capacity followed b...

journal_title：Radiology

authors： Dhekne RD,Burdine JA

更新日期：1978-10-01 00:00:00

abstract：PURPOSE:To retrospectively determine if patients with a history of intraoperative bile duct injury or liver transplantation have an increased risk for arterial injury (AI) during percutaneous transhepatic cholangiography (PTC) and percutaneous transhepatic biliary drainage (PTBD) compared with the risk of AI establishe...

journal_title：Radiology

authors： Fidelman N,Bloom AI,Kerlan RK Jr,Laberge JM,Wilson MW,Ring EJ,Gordon RL

更新日期：2008-06-01 00:00:00

abstract：:In a series of 526 consecutive, unprepared patients examined by ultrasound, the gallbladder was visualized in 507 (96%). The average wall thickness was 2 mm or less in 97% of asymptomatic subjects without cholelithiasis and 3 mm or greater in 45% of those with choletithiasis. Pathologic correlation of increased thickn...

journal_title：Radiology

authors： Finberg HJ,Birnholz JC

更新日期：1979-12-01 00:00:00

abstract：:We report three patients in whom the performance of a rectal biopsy produced an ulcer that was found during a subsequent examination (two at double-contrast barium enema examinations and one at colonoscopy). In each case, the iatrogenic ulcers presented an unusual appearance and resulted in the performance of inapprop...

journal_title：Radiology

authors： Millward SF,Chapman A,Somers S,Stevenson GW

更新日期：1985-07-01 00:00:00

abstract：:The radiation dose and the anatomic detail of computed tomography (CT) and conventional tomography were studied in 18 patients with suspected acoustic neuroma, cholesteatoma, malignant tumor, and temporal bone fracture. It is concluded that CT is the technique of choice in patients suspected of having acoustic neuroma...

journal_title：Radiology

authors： Shaffer KA,Haughton VM,Wilson CR

更新日期：1980-02-01 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

authors： Spies WG,Burstein SP,Dillehay GL,Vogelzang RL,Spies SM

更新日期：1986-05-01 00:00:00

abstract：PURPOSE:To assess the cost-effectiveness of noninvasive imaging strategies in patients who have had a transient ischemic attack (TIA) or minor stroke and are suspected of having significant carotid artery stenosis. MATERIALS AND METHODS:From 1997 through 2000, 350 patients were included in a multicenter blinded consec...

journal_title：Radiology

authors： Buskens E,Nederkoorn PJ,Buijs-Van Der Woude T,Mali WP,Kappelle LJ,Eikelboom BC,Van Der Graaf Y,Hunink MG

更新日期：2004-10-01 00:00:00

abstract：:Intravascular injection of some radiographic contrast media causes a fall in the concentration of unbound serum calcium (Ca++) and an increase in serum immunoreactive parathyroid hormone (iPTH). The decrease in Ca++ levels was attributed to the presence in the contrast media of calcium chelating agents (disodium edeta...

journal_title：Radiology

authors： Mallette LE,Gomez LS

更新日期：1983-06-01 00:00:00

abstract：PURPOSE:Magnetic resonance (MR) images were correlated with results of fine-needle aspiration (FNA) to determine the role of MR imaging in evaluating hepatic neoplasms treated with percutaneous ethanol ablation therapy (PEAT). MATERIALS AND METHODS:Contrast material-enhanced and unenhanced MR images were obtained in 1...

journal_title：Radiology

authors： Nagel HS,Bernardino ME

更新日期：1993-10-01 00:00:00