Brain parenchyma motion: measurement with cine echo-planar MR imaging.

abstract：PURPOSE:To compare changes in urinary viscosity in the renal tubules following administration of a high-viscosity iso-osmolar contrast agent (iodixanol) to that observed following administration of a less viscous, higher osmolar contrast agent (iopromide) in anesthetized rats. MATERIALS AND METHODS:A total of 43 rats ...

journal_title：Radiology

authors： Seeliger E,Becker K,Ladwig M,Wronski T,Persson PB,Flemming B

更新日期：2010-08-01 00:00:00

abstract：:A 2-year-old girl with cyanotic congenital heart disease needed to undergo gastrostomy. To avoid the use of general anesthesia, a percutaneous gastrostomy was performed as an interventional radiologic procedure with the patient under sedation and with the use of local anesthesia. The placement of a nasogastrocutaneous...

journal_title：Radiology

authors： Keller MS,Lai S,Wagner DK

更新日期：1986-07-01 00:00:00

abstract：PURPOSE:To determine if percutaneously applied radio frequency (RF) combined with percutaneous ethanol instillation (PEI) can increase the extent of ablation in rat breast tumors. MATERIALS AND METHODS:R3230 mammary adenocarcinoma was implanted bilaterally in the mammary fat pads of 18 female rats. The tumor nodules m...

journal_title：Radiology

authors： Goldberg SN,Kruskal JB,Oliver BS,Clouse ME,Gazelle GS

更新日期：2000-12-01 00:00:00

abstract：PURPOSE:To determine the prognostic importance of periintervention serum levels of acute-phase reactants in 6-month restenosis after stent implantation in the carotid artery. MATERIALS AND METHODS:One hundred eight consecutive patients with 70% or greater stenosis of the internal carotid artery (ICA) according to the ...

journal_title：Radiology

authors： Schillinger M,Exner M,Mlekusch W,Rumpold H,Ahmadi R,Sabeti S,Lang W,Wagner O,Minar E

更新日期：2003-05-01 00:00:00

abstract：:Ultrasound examinations were performed on 25 women with augmented breasts using whole-breast water-path scanning. In these patients, ultrasound imaged carcinoma, benign lesions, and fibrous capsule formation; these were confirmed by surgery. In addition, it was noted that certain prostheses appeared to be displaced po...

journal_title：Radiology

authors： Cole-Beuglet C,Schwartz G,Kurtz AB,Patchefsky AS,Goldberg BB

更新日期：1983-03-01 00:00:00

abstract：PURPOSE:To assess the reproducibility and accuracy of volumetric quantifications of articular cartilage in the knee determined with three-dimensional (3D) magnetic resonance (MR) imaging combined with pulsed saturation transfer subtraction (STS) or T1-weighted fat suppression (FS) imaging. MATERIALS AND METHODS:Eight ...

journal_title：Radiology

authors： Peterfy CG,van Dijke CF,Janzen DL,Glüer CC,Namba R,Majumdar S,Lang P,Genant HK

更新日期：1994-08-01 00:00:00

abstract：PURPOSE:To assess prospectively the concordance of enhancement patterns of focal liver masses on contrast material-enhanced ultrasonographic (US) scans with patterns on contrast-enhanced computed tomographic (CT) scans or magnetic resonance (MR) images. MATERIALS AND METHODS:This study was approved by the institutiona...

journal_title：Radiology

authors： Burns PN,Wilson SR

更新日期：2007-01-01 00:00:00

abstract：:Real-time ultrasonography was useful in differentiating tumor from syringohydromyelia as the cause of cervical cord widening in four patients. Those with syringohydromyelia had a smooth, regular, cystic space located symmetrically in the spinal cord. Tumor appeared as an echogenic, hypoechoic, or cystic expansile lesi...

journal_title：Radiology

authors： Hutchins WW,Vogelzang RL,Neiman HL,Fuld IL,Kowal LE

更新日期：1984-04-01 00:00:00

abstract：PURPOSE:To prospectively determine the magnetic resonance (MR) signal intensity characteristics of structures of the ampullary region and to assess the potential use of MR imaging in evaluation of the extent of periampullary tumors in resected specimens. MATERIALS AND METHODS:Twenty-five specimens from the ampullary r...

journal_title：Radiology

authors： Sugita R,Furuta A,Ito K,Fujita N,Ichinohasama R,Takahashi S

更新日期：2004-06-01 00:00:00

abstract：PURPOSE:To collect up-to-date data in healthy children to create a digital hand atlas (DHA) that can be used to evaluate, on the basis of the Greulich and Pyle atlas method, racial differences in skeletal growth patterns of Asian, African American, white, and Hispanic children in the United States. MATERIALS AND METHO...

journal_title：Radiology

authors： Zhang A,Sayre JW,Vachon L,Liu BJ,Huang HK

更新日期：2009-01-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate the technical success, safety, and outcomes of radiologically guided retrograde percutaneous gastrostomy and gastrojejunostomy tube placements in terms of weight gain and growth in children with gastroschisis, omphalocele, and/or congenital diaphragmatic hernia (CDH). MATERIALS AND ...

journal_title：Radiology

authors： Rosenberg J,Amaral JG,Sklar CM,Connolly BL,Temple MJ,John P,Chait PG

更新日期：2008-07-01 00:00:00

abstract：PURPOSE:To analyze the effect of a decrease in computed tomographic (CT) colonographic voltage, from 100 and 120 kVp to 80 kVp and reconstructed with filtered back projection ( FBP filtered back projection ), on radiation dose, image noise, and diagnostic performance in anthropomorphic phantoms and to assess the effect...

journal_title：Radiology

authors： Shin CI,Kim SH,Lee ES,Lee DH,Hwang EJ,Chung SY,Lee JM,Han JK,Choi BI

更新日期：2014-12-01 00:00:00

abstract：PURPOSE:To compare open-magnet magnetic resonance (MR) imaging performed with the patient sitting with dynamic closed-magnet MR imaging of the pelvic floor performed with the patient supine. MATERIALS AND METHODS:Thirty-eight patients underwent dynamic 1.5-T closed-magnet pelvic floor MR imaging while in the supine po...

journal_title：Radiology

authors： Bertschinger KM,Hetzer FH,Roos JE,Treiber K,Marincek B,Hilfiker PR

更新日期：2002-05-01 00:00:00

abstract：PURPOSE:To determine the feasibility of measuring choline and glycogen concentrations in normal human liver in vivo with proton (hydrogen 1 [1H]) magnetic resonance (MR) spectroscopy. MATERIALS AND METHODS:Signed consent to participate in an institutional review board-approved and HIPAA-compliant study was obtained fr...

journal_title：Radiology

authors： Ouwerkerk R,Pettigrew RI,Gharib AM

更新日期：2012-11-01 00:00:00

abstract：:Laser-assisted balloon angioplasty has been successfully performed in peripheral and coronary arteries; however, the ability to perform laser angioplasty alone without the need for subsequent balloon angioplasty has not been reported. In the present series, infrapopliteal and below-knee popliteal sole laser thermal an...

journal_title：Radiology

authors： Sanborn TA,Mitty HA,Train JS,Dan SJ

更新日期：1989-07-01 00:00:00

abstract：PURPOSE:To determine the incidence of a "stuck" disk and its importance in the overall scheme of internal derangement. MATERIALS AND METHODS:Magnetic resonance (MR) images of 212 temporomandibular joints (TMJs) in 106 symptomatic patients were obtained and reviewed. Image analysis included assessment of disk position;...

journal_title：Radiology

authors： Rao VM,Liem MD,Farole A,Razek AA

更新日期：1993-12-01 00:00:00

abstract：:An ex vivo magnetic resonance (MR) colonographic system with a bovine colon with polyps of predetermined dimensions was developed for evaluation and optimization of different combinations of imaging sequences and intraluminal contrast agents. Findings were then applied during in vivo testing in human subjects. The res...

journal_title：Radiology

authors： Martin DR,Yang M,Thomasson D,Acheson C

更新日期：2002-11-01 00:00:00

abstract：:An improved catheter for pulmonary arteriography via the antecubital approach is described. The catheter has been used successfully in 56 patients. ...

journal_title：Radiology

authors： Tempkin DL,Ladika JE

更新日期：1987-04-01 00:00:00

abstract：:A fluoroscopic system was modified to achieve a 95-98% reduction in radiation exposure and dosage to patients compared with other systems that reduce fluoroscopic radiation dosage. This reduction was accomplished by custom selection of a high conversion-factor, triplemode image intensifier; custom design of a variable...

journal_title：Radiology

authors： Wesenberg RL,Amundson GM

更新日期：1984-10-01 00:00:00

abstract：PURPOSE:To quantify regional ejection fraction (EF) in patients with myocardial infarction (MI) by using merged late gadolinium enhancement (LGE) and cine magnetic resonance (MR) imaging, and compare this method with the standardized 17-segment American Heart Association approach. MATERIALS AND METHODS:After instituti...

journal_title：Radiology

authors： Masci PG,Dymarkowski S,Rademakers FE,Bogaert J

更新日期：2009-01-01 00:00:00

abstract：PURPOSE:To determine the utility of computed tomographic (CT) enteroclysis for characterization of the status of the anastomotic site in patients with Crohn disease who had previously undergone ileocolic resection. MATERIALS AND METHODS:Written informed consent was prospectively obtained from all patients, and the ins...

journal_title：Radiology

authors： Soyer P,Boudiaf M,Sirol M,Dray X,Aout M,Duchat F,Vahedi K,Fargeaudou Y,Martin-Grivaud S,Hamzi L,Vicaut E,Rymer R

更新日期：2010-03-01 00:00:00

abstract：:Sixteen cases of histopathologically proved solitary rectal ulcer syndrome were encountered. Fifteen patients underwent barium enema study; in nine cases the findings--including rectal stricture, granularity of the mucosa, and thickened rectal folds-were nonspecific. In six cases the study was normal. All patients had...

journal_title：Radiology

authors： Goei R,Baeten C,Arends JW

更新日期：1988-08-01 00:00:00

abstract：:A single step wedge imaging technique is described for the proper evaluation of light fog in radiographic darkrooms. Tests indicate that this technique is a more sensitive indicator of light fog than the conventional technique utilizing unexposed film. It is recommended that fog tests be carried out in radiographic da...

journal_title：Radiology

authors： Gray JE

更新日期：1975-04-01 00:00:00

abstract：PURPOSE:To determine the accuracy of contrast material-enhanced computed tomographic (CT) colonography for postoperative surveillance in colorectal cancer patients without clinical or laboratory evidence of disease recurrence. MATERIALS AND METHODS:The Institutional Review Board approved this HIPAA-compliant study and...

journal_title：Radiology

authors： Kim HJ,Park SH,Pickhardt PJ,Yoon SN,Lee SS,Yee J,Kim DH,Kim AY,Kim JC,Yu CS,Ha HK

更新日期：2010-12-01 00:00:00

abstract：PURPOSE:To assess the frequency of hyperintensity in the dentate nucleus on T1-weighted magnetic resonance (MR) images and to establish correlations between such hyperintensity and clinical factors, including a history of brain irradiation. MATERIALS AND METHODS:This study was approved by the institutional review boar...

journal_title：Radiology

authors： Kasahara S,Miki Y,Kanagaki M,Yamamoto A,Mori N,Sawada T,Taoka T,Okada T,Togashi K

更新日期：2011-01-01 00:00:00

abstract：:The authors evaluated the relative importance of the following scanning parameters at computed tomographic bronchoscopy in an anesthetized adult sheep's thorax: section thickness (2, 4, 8 mm), pitch (1.0, 1.5, 2.0), milliampere setting (100, 175, 250 mA), and overlap of reconstructed sections (0%, 25%, 50%, 75%). Five...

journal_title：Radiology

authors： Hopper KD,Iyriboz TA,Mahraj RP,Wise SW,Kasales CJ,TenHave TR,Wilson RP,Weaver JS

更新日期：1998-12-01 00:00:00

abstract：:Left atrial-coronary sinus fenestration is a rare cause of a left-to-right or right-to-left shunt which occurs most commonly with a persistent left superior vena cava. These fenestrations may represent the only pathway for an obligatory right-to-left or left-to-right shunt in atrioventricular valve atresia. Four cases...

journal_title：Radiology

authors： Nath PH,Delaney DJ,Zollikofer C,Ben-Sachar G,Castaneda-Zuniga W,Formanek A,Amplatz K

更新日期：1980-05-01 00:00:00

abstract：:Hirschprung disease is usually diagnosed in infancy. Occasionally patients reach adulthood without diagnosis or treatment. Four cases of adult Hirschprung disease are described. The principal radiographic findings are a markedly dilated, feces-filled colon above the zone of transition; a narrowed rectum; a cone- or fu...

journal_title：Radiology

authors： Mindelzun RE,Hicks SM

更新日期：1986-09-01 00:00:00

abstract：:Subtraction radiography permits the use of 7-10 times less contrast material than is required without subtraction techniques. The first-order, second-order, and composite mask techniques are described and evaluated. While the second-order technique gives more complete cancellation of common structures, the more common...

journal_title：Radiology

authors： Ort MG,Gregg EC,Kaufman B

更新日期：1977-07-01 00:00:00

abstract：PURPOSE:To estimate the fraction of moving blood in tissue with power Doppler ultrasound (US). MATERIALS AND METHODS:Power Doppler US measurements of moving scatterers in a flow tube were made as a function of successive dilutions of the perfusate. Measurements were normalized relative to the maximum Doppler power in ...

journal_title：Radiology

authors： Rubin JM,Adler RS,Fowlkes JB,Spratt S,Pallister JE,Chen JF,Carson PL

更新日期：1995-10-01 00:00:00