Osteopetrosis: MR characteristics at 1.5 T.

abstract：:A method of image analysis was developed for correlation of hemangiomas detected at computed tomography (CT) and/or magnetic resonance (MR) imaging with increased blood pool activity evident at single photon emission CT (SPECT) performed after labeling of red blood cells with technetium-99m. Image analysis was perform...

journal_title：Radiology

authors： Birnbaum BA,Noz ME,Chapnick J,Sanger JJ,Megibow AJ,Maguire GQ Jr,Weinreb JC,Kaminer EM,Kramer EL

更新日期：1991-11-01 00:00:00

abstract：PURPOSE:To investigate the feasibility of obtaining reproducible apparent diffusion coefficient (ADC) maps of normal rat kidneys by using respiratory-triggered spin-echo diffusion-weighted magnetic resonance (MR) imaging, to investigate the sensitivity of ADC maps in the evaluation of renal blood flow, and to use this ...

journal_title：Radiology

authors： Yang D,Ye Q,Williams DS,Hitchens TK,Ho C

更新日期：2004-06-01 00:00:00

abstract：PURPOSE:To evaluate the imaging characteristics of an amorphous silicon flat-panel detector (FPD) for digital chest radiography. MATERIALS AND METHODS:The 41 x 41-cm digital FPD is constructed on a single monolithic glass substrate with a structured cesium iodide scintillator layer and an amorphous silicon thin-film t...

journal_title：Radiology

authors： Floyd CE Jr,Warp RJ,Dobbins JT 3rd,Chotas HG,Baydush AH,Vargas-Voracek R,Ravin CE

更新日期：2001-03-01 00:00:00

abstract：:Fifty temporomandibular joints (TMJs) in 30 asymptomatic volunteers were imaged with a 1.5-T magnetic resonance (MR) imaging system to determine (a) the normal range of meniscus position, (b) the best definition of a normal TMJ and criteria to distinguish it from a TMJ with significant internal derangements, (c) the s...

journal_title：Radiology

authors： Drace JE,Enzmann DR

更新日期：1990-10-01 00:00:00

abstract：PURPOSE:To investigate whether the presence or absence of gas in the appendix may be considered as additional ultrasonographic (US) criteria to rule out or confirm acute appendicitis. MATERIALS AND METHODS:The appendices in 239 control subjects, 138 patients with lower right quadrant pain without acute appendicitis, a...

journal_title：Radiology

authors： Rettenbacher T,Hollerweger A,Macheiner P,Rettenbacher L,Frass R,Schneider B,Gritzmann N

更新日期：2000-01-01 00:00:00

abstract：:Partial Budd-Chiari syndrome was produced in 8 monkeys by obstructing 2 or 3 lobar hepatic veins with a rapidly polymerizing plastic. Hepatic angiography done 1-3 months later revealed crowded tortuous arteries and a dense hepatogram in the lobe with venous occlusion. Unobstructed lobes were hypertrophied. Retrograde ...

journal_title：Radiology

authors： Maguire R,Doppman JL

更新日期：1977-03-01 00:00:00

abstract：:The computed tomographic (CT) chest scans of 11 patients who developed respiratory or constitutional symptoms while receiving amiodarone therapy were reviewed. CT findings indicative of significant amiodarone exposure included (a) high-attenuation parenchymal-pleural lesions in eight of the 11 patients (73%), and (b) ...

journal_title：Radiology

authors： Kuhlman JE,Teigen C,Ren H,Hruban RH,Hutchins GM,Fishman EK

更新日期：1990-10-01 00:00:00

abstract：:Magnetic resonance (MR) imaging of the thyroid was performed with a 1.5-T system and local receiver coil in 19 "healthy" subjects and 34 patients with various focal and diffuse thyroid disorders. The normal gland was typically homogeneous with increased intensity relative to that of muscle on images obtained with long...

journal_title：Radiology

authors： Gefter WB,Spritzer CE,Eisenberg B,LiVolsi VA,Axel L,Velchik M,Alavi A,Schenck J,Kressel HY

更新日期：1987-08-01 00:00:00

abstract：PURPOSE:To investigate the cost-effectiveness of computed tomography (CT) relative to radiography for cervical spine screening in trauma patients. MATERIALS AND METHODS:A decision analysis model was constructed to compare the incremental cost-effectiveness of radiography and CT as primary cervical spine screening moda...

journal_title：Radiology

authors： Blackmore CC,Ramsey SD,Mann FA,Deyo RA

更新日期：1999-07-01 00:00:00

abstract：PURPOSE:To assess the optimal timing for coronary magnetic resonance (MR) angiography in children with congenital heart disease by using dual cardiac phase whole-heart MR imaging. MATERIALS AND METHODS:The local institutional review board approved this study, and informed consent was obtained from parents or guardians...

journal_title：Radiology

authors： Uribe S,Hussain T,Valverde I,Tejos C,Irarrazaval P,Fava M,Beerbaum P,Botnar RM,Razavi R,Schaeffter T,Greil GF

更新日期：2011-07-01 00:00:00

abstract：PURPOSE:To evaluate the accuracy of technetium-99m sestamibi as a single agent in the detection and localization of hyperfunctioning parathyroid tissue in patients who underwent prior neck exploration or who otherwise are high surgical risks. MATERIALS AND METHODS:Thirty-nine patients with hyperparathyroidism underwen...

journal_title：Radiology

authors： Lee VS,Wilkinson RH Jr,Leight GS Jr,Coogan AC,Coleman RE

更新日期：1995-12-01 00:00:00

abstract：PURPOSE:To evaluate the feasibility of magnetic resonance (MR) imaging-guided placement of an active vena cava filter (AVCF) in a swine model, the effectiveness of the system in filtering thrombi, and the detection of thrombi with MR imaging. MATERIALS AND METHODS:This study was approved by the government committee on...

journal_title：Radiology

authors： Kraemer NA,Immel E,Donker HC,Melzer A,Ocklenburg C,Guenther RW,Buecker A,Krombach GA,Spuentrup E

更新日期：2011-02-01 00:00:00

abstract：:The classical abnormalities of von Recklinghausen disease (VRD) or neurofibromatosis are well recognized. However, vertebral scalloping and gauge defects of the anterior and lateral aspects have not been reviewed, to the authors' knowledge. Case reports of 3 patients with vertebral scalloping are presented. The classi...

journal_title：Radiology

authors： Casselman ES,Mandell GA

更新日期：1979-04-01 00:00:00

abstract：:The sonographic appearance in 4 cases of primary carcinoma of the gallbladder is correlated with the surgical and pathological findings. A fungating tumor had the greatest chance of resection, with findings dependent on the location and size of the mass. Infiltrating lesions were highly malignant. In less advanced cas...

journal_title：Radiology

authors： Yum HY,Fink AH

更新日期：1980-03-01 00:00:00

abstract：:Six patients were examined with high-resolution real-time ultrasound following Rammstedt pyloromyotomy for hypertrophic pyloric stenosis. At surgery, the pyloric muscle thickness was greater than or equal to 4 mm, diameter greater than or equal to 13 mm, and length greater than or equal to 19 mm. Sequential sonograms ...

journal_title：Radiology

authors： Sauerbrei EE,Paloschi GG

更新日期：1983-05-01 00:00:00

abstract：:Two successive hepatic arterial embolizations were performed in a patient with hypercalcemia secondary to hepatocellular carcinoma. The first procedure was performed on an emergency basis due to a cardiovascular episode and was immediately beneficial. The second procedure, performed five months later for a recurrence,...

journal_title：Radiology

authors： Roche A,Franco D,Dhumeaux D,Bismuth H,Doyon D

更新日期：1979-11-01 00:00:00

abstract：:The cause of superior vena cava syndrome (SVCS) in two patients was identified by means of endovascular biopsy of the superior vena cava (SVC) performed with a percutaneous atherectomy catheter. In both cases, the extracted tissues were neoplastic, therefore obviating additional invasive procedures. After a specific d...

journal_title：Radiology

authors： Dake MD,Zemel G,Dolmatch BL,Katzen BT

更新日期：1990-03-01 00:00:00

abstract：:This report describes the radiologic appearance of the intravenous oxygenator (IVOX), an intracorporeal CO2-O2 exchanger for use in patients with severe respiratory deficiency, and the extensive radiographic and sonographic support required for its use. Six patients aged 19-39 years who had severe adult respiratory di...

journal_title：Radiology

authors： Shukla PR,Snider MT,Hopper KD,Thieme GA,Meilstrup JW

更新日期：1993-06-01 00:00:00

abstract：PURPOSE:To use magnetic resonance (MR) imaging to document the appearance of perianal infection in patients with a hematologic malignancy (HM) compared with that in immunocompetent control patients. MATERIALS AND METHODS:After an ethical waiver was obtained, 38 patients with an HM were matched by age and sex to 38 con...

journal_title：Radiology

authors： Plumb AA,Halligan S,Bhatnagar G,Taylor SA

更新日期：2015-07-01 00:00:00

abstract：PURPOSE:To examine radiologists' screening performance in relation to the number of diagnostic work-ups performed after abnormal findings are discovered at screening mammography by the same radiologist or by different radiologists. MATERIALS AND METHODS:In an institutional review board-approved HIPAA-compliant study, ...

journal_title：Radiology

authors： Buist DS,Anderson ML,Smith RA,Carney PA,Miglioretti DL,Monsees BS,Sickles EA,Taplin SH,Geller BM,Yankaskas BC,Onega TL

更新日期：2014-11-01 00:00:00

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

authors： Ascuitto RJ,Ross-Ascuitto NT,Markowitz RI,Kopf GS,Hellenbrand WE,Fahey JT,Kleinman CS

更新日期：1988-04-01 00:00:00

abstract：PURPOSE:To evaluate major geometric variations in multiple intracavitary applications for carcinoma of the cervix. MATERIALS AND METHODS:Orthogonal radiographs were reviewed of 17 consecutive patients with carcinoma of the cervix treated with 70 applications of high-dose-rate brachytherapy. In seven patients, consciou...

journal_title：Radiology

authors： Kim RY,Meyer JT,Plott WE,Spencer SA,Meredith RF,Jennelle RL,Salter MM

更新日期：1995-05-01 00:00:00

abstract：PURPOSE:To determine the computed tomographic (CT) findings in patients with allergic fungal sinusitis. MATERIALS AND METHODS:The authors retrospectively reviewed CT scans and surgical and histopathologic reports in 45 patients (27 male, 18 female; age range, 8-68 years) with allergic fungal sinusitis from multiple in...

journal_title：Radiology

authors： Mukherji SK,Figueroa RE,Ginsberg LE,Zeifer BA,Marple BF,Alley JG,Cooper LL,Nemzek WR,Yousem DM,Jones KR,Kupferberg SB,Castillo M

更新日期：1998-05-01 00:00:00

abstract：:A simple device is described that can reduce personnel exposure from scatter radiation by up to 75%. The device consists of an oblong piece of shielding (0.75-mm lead equivalent) that is taped to the side of the patient during percutaneous renal stone removal and other interventional procedures. Contrary to other shie...

journal_title：Radiology

authors： Young AT,Morin RL,Hunter DW,Nelson KL,Cardella JF,Castaneda-Zuniga WR,Amplatz K

更新日期：1986-06-01 00:00:00

abstract：:The effects of 30-minute intravenous and superior mesenteric artery (SMA) infusions of vasopressin in dosages of 2.75 mU and 14 mU per min per kg were compared in five dogs that had cirrhosis and portal hypertension induced by fractionated intraportal polyvinyl alcohol injections. A reduction in portal pressure of app...

journal_title：Radiology

authors： Burgener FA,Gutierrez OH

更新日期：1982-03-01 00:00:00

abstract：:A review of 210 chest computed tomographic (CT) examinations demonstrating upper chest masses revealed 16 cases of superior vena caval obstruction (SVCO); 11 of these were clinically occult. Two of the occult cases subsequently became clinically evident. Contrast-enhanced chest CT permits the diagnosis of clinically o...

journal_title：Radiology

authors： Bechtold RE,Wolfman NT,Karstaedt N,Choplin RH

更新日期：1985-11-01 00:00:00

abstract：:Ultrasound guidance was used in 10 aspiration and six drainage procedures in the intensive care unit. Sonography offered a safe and effective method for guidance of diagnostic aspiration in the ICU setting. Additionally, cholecystostomy, nephrostomy, abscess drainage, and empyema drainage were performed at bedside as ...

journal_title：Radiology

authors： McGahan JP

更新日期：1985-02-01 00:00:00

abstract：:High fecal impaction resulted in complete bowel obstruction in 2 children following renal transplantation and in one adult on chemotherapy and narcotics. The usual methods of relief failed, and water-soluble contrast enemas with a high osmolality were employed. Fluoroscopic control assured placement of the enema fluid...

journal_title：Radiology

authors： Culp WC

更新日期：1975-04-01 00:00:00

abstract：:The effects of magnetic resonance (MR) pulse sequences and timing parameters on tumor-liver contrast were studied in an animal model of metastatic liver cancer. Six spin-echo (SE), three inversion-recovery (IR), and four gradient-echo (GRE) sequences were evaluated at 0.6 T before and after injection of super-paramagn...

journal_title：Radiology

authors： Fretz CJ,Elizondo G,Weissleder R,Hahn PF,Stark DD,Ferrucci JT Jr

更新日期：1989-08-01 00:00:00

abstract：:The authors retrospectively evaluated 12 patients with congenital (neonatal) neuroblastoma to assess the utility of newer imaging modalities. Findings at prenatal ultrasound (US), performed in four patients, were nonspecific (hydramnios and hydrops fetalis) in two and consistent with a suprarenal mass (one solid, one ...

journal_title：Radiology

authors： Forman HP,Leonidas JC,Berdon WE,Slovis TL,Wood BP,Samudrala R

更新日期：1990-05-01 00:00:00