Primary sclerosing cholangitis: evaluation with MR cholangiography-a case-control study.

abstract：:Dedifferentiated chondrosarcomas, unlike ordinary chondrosarcomas, are highly aggressive tumors that frequently metastasize. The lesion is characterized by a lytic intraosseous or extraosseous soft-tissue mass that is devoid of the calcifications that are usually associated with a chondroid tumor. We describe the radi...

journal_title：Radiology

authors： de Lange EE,Pope TL Jr,Fechner RE

更新日期：1986-11-01 00:00:00

abstract：:Cortical fissuring, a well-recognized radiographic sign of osteomyelitis, represents spread of infection through the haversian system with osteoclastic bone resorption. In the proper clinical setting this finding may be recognized before there is other evidence of bone destruction or periosteal reaction. Three cases a...

journal_title：Radiology

authors： Rosen RA,Morehouse HT,Karp HJ,Yu GS

更新日期：1981-10-01 00:00:00

abstract：:The effect of nuclear magnetic resonance (NMR) imaging on six representative cardiac pacemakers was studied. The results indicate that the threshold for initiating the asynchronous mode of a pacemaker is 17 gauss. Radiofrequency levels are present in an NMR unit and may confuse or possibly inhibit demand pacemakers, a...

journal_title：Radiology

authors： Pavlicek W,Geisinger M,Castle L,Borkowski GP,Meaney TF,Bream BL,Gallagher JH

更新日期：1983-04-01 00:00:00

abstract：:In order to determine the relative biological effectiveness (RBE) of various low- and high-LET radiotherapy beams of low coses, LAF1 mice were exposed to one dose and 10 equally fractionated doses of 60Co gamma rays, 137Cs gamma rays, 4-MeV x rays, 300-kVp x rays, helium ions in the plateau and Bragg-peak region, and ...

journal_title：Radiology

authors： Fu KK,Phillips TL,Heilbron DC,Ross G,Kane LJ

更新日期：1979-07-01 00:00:00

abstract：PURPOSE:To describe the gray-scale and color and duplex Doppler ultrasound (US) and the magnetic resonance (MR) imaging features of uterine arteriovenous malformations (AVMs). MATERIALS AND METHODS:Uterine AVMs in 10 patients were retrospectively evaluated. All patients underwent gray-scale US and color and duplex Dop...

journal_title：Radiology

authors： Huang MW,Muradali D,Thurston WA,Burns PN,Wilson SR

更新日期：1998-01-01 00:00:00

abstract：:Adjuvant chemotherapy prolongs the survival of patients with high-grade osteosarcoma. Preoperative chemotherapy allows identification of effective agents for adjuvant chemotherapy based on response of the primary tumor. Preoperative determination of tumor response has therapeutic implications, and angiography offers a...

journal_title：Radiology

authors： Carrasco CH,Charnsangavej C,Raymond AK,Richli WR,Wallace S,Chawla SP,Ayala AG,Murray JA,Benjamin RS

更新日期：1989-03-01 00:00:00

abstract：:The capability of ultrasonography and computed tomographic body scanning to demonstrate the status of the biliary tract was studied prospectively in 23 jaundiced patients. Ultrasonography correctly indicated the presence or absence of obstruction in 21 of the 23 patients and CT scanning in 20. Both procedures correctl...

journal_title：Radiology

authors： Goldberg HI,Filly RA,Korobkin M,Moss AA,Kressel HY,Callen PW

更新日期：1978-12-01 00:00:00

abstract：PURPOSE:To determine whether adrenal adenomas can be differentiated from metastases on fat-saturated magnetic resonance (MR) images. MATERIALS AND METHODS:Twenty-eight adrenal adenomas and 20 metastatic lesions were imaged at 1.5 T by means of fat-saturated T1- and T2-weighted and gadolinium-enhanced T1-weighted seque...

journal_title：Radiology

authors： Ichikawa T,Ohtomo K,Uchiyama G,Koizumi K,Monzawa S,Oba H,Nogata Y,Kachi K,Toyama K,Yamaguchi M

更新日期：1994-10-01 00:00:00

abstract：:A 20-MHz intravascular ultrasound (US) transducer inside a percutaneously inserted catheter was used to evaluate inferior vena caval (IVC) filters for thrombi in vitro and in vivo. Six different IVC filters were studied with intravascular US in a saline-filled model. Each filter had a characteristic, recognizable US p...

journal_title：Radiology

authors： McCowan TC,Ferris EJ,Carver DK

更新日期：1990-12-01 00:00:00

abstract：PURPOSE:To compare the value of enhancement and pharmacokinetic parameters measured at dynamic gadoxetate-enhanced magnetic resonance (MR) imaging in determining hepatic organic anion transporter expression in control rats and rats with advanced liver fibrosis. MATERIALS AND METHODS:Institutional animal review board a...

journal_title：Radiology

authors： Lagadec M,Doblas S,Giraudeau C,Ronot M,Lambert SA,Fasseu M,Paradis V,Moreau R,Pastor CM,Vilgrain V,Daire JL,Van Beers BE

更新日期：2015-02-01 00:00:00

abstract：:To determine whether magnetic resonance (MR) imaging can improve assessment of the extensor tendons of the wrist and their propensity to rupture, the dorsal tendons in 23 wrists in 20 patients with rheumatoid arthritis were clinically assessed and then examined with MR imaging. Clinical and MR imaging evaluations were...

journal_title：Radiology

authors： Rubens DJ,Blebea JS,Totterman SM,Hooper MM

更新日期：1993-06-01 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：:Formal ethical approval was granted by the local research ethics committee; all participants gave written consent. The purpose of the study was to prospectively evaluate the feasibility of a noninvasive method of breast tumor localization in 25 participants, based on the coregistration of three-dimensional (3D) ultras...

journal_title：Radiology

authors： Cash CJ,Coles CE,Treece GM,Purushotham AD,Britton P,Sinnatamby R,Gee AH,Prager RW

更新日期：2007-11-01 00:00:00

abstract：:Improved visualization of the initial bolus of contrast material injected via a lateral Cl-2 puncture for cervical myelography can be obtained by using real-time digital subtraction fluoroscopy. As little as 0.1 ml of metrizamide (250 mg%) can be demonstrated easily. ...

journal_title：Radiology

authors： Sherry RG,Anderson RE

更新日期：1984-04-01 00:00:00

abstract：:In the redistribution of cells through the division cycle between dose fractions, the sensitizing effect is greatest when small doses per fraction are used. Since nonproliferating tissues limit the dose in radiotherapy and will not be sensitized by redistribution, the more the dose is fractionated and the lower the do...

journal_title：Radiology

authors： Withers HR

更新日期：1975-01-01 00:00:00

abstract：:A new method is presented for the removal of streaking artifact in computed tomography. The method uses a nearest-neighbor pattern recognition technique to redetermine ray sums that intersect the foreign object responsible for the streaking. When the method is applied to the removal of streaking artifact caused by lea...

journal_title：Radiology

authors： Morin RL,Raeside DE

更新日期：1981-10-01 00:00:00

abstract：:Background Modern high-spatial-resolution radiologic methods enable increasingly detailed volumetric postmortem investigations of human neuroanatomy for diagnostic, research, and educational purposes. Purpose To evaluate the viability of postmortem x-ray phase-contrast micro-CT to provide tissue-conserving, high-spati...

journal_title：Radiology

authors： Barbone GE,Bravin A,Mittone A,Grosu S,Ricke J,Cavaletti G,Djonov V,Coan P

更新日期：2021-01-01 00:00:00

abstract：:The effect of transient renal ischemia on renal concentration and distribution of 99mTc-HEDP, 99mTc-DMSA, and 99mTc-DTPA was compared in rabbits with acute tubular necrosis. Scintigrams were obtained after injection in normal rabbits or ones with unilateral or bilateral ischemia. 99mTc-HEDP concentration in ischemic t...

journal_title：Radiology

authors： Lavelle KJ,Park HM,Moseman AM,Lewis S

更新日期：1979-05-01 00:00:00

abstract：PURPOSE:A prospective study was performed to compare the sensitivity and specificity of magnetic resonance (MR) imaging and computed tomography (CT) both performed during arterial portography in depicting focal hepatic masses. MATERIALS AND METHODS:Eleven patients with 31 pathologically proved focal hepatic masses wer...

journal_title：Radiology

authors： Soyer P,Laissy JP,Sibert A,Blanc F,Belghiti J,Marmuse JP,Zeitoun G,Levesque M,Menu Y

更新日期：1994-03-01 00:00:00

abstract：PURPOSE:To determine if patients with multiple fluid collections need every collection aspirated and if cross-contamination is a risk if separate sterile procedures are not followed for each aspiration. MATERIALS AND METHODS:Records from 1,076 imaging-guided percutaneous aspirations and drainages over 39 months were r...

journal_title：Radiology

authors： Heneghan JP,Everts RJ,Nelson RC

更新日期：1999-09-01 00:00:00

abstract：:The relationship between patient waiting time and capacity and utilization is quantified. By deciding upon the average acceptable and maximum allowable waiting times, the required capacity and resulting utilization rate are fixed. The data needed for analysis include waiting time, patient volume, time required for spe...

journal_title：Radiology

authors： Rhea JT,St Germain RP

更新日期：1979-03-01 00:00:00

abstract：PURPOSE:To evaluate the effect of a computer-aided diagnosis (CAD) system on the diagnostic performance of radiologists for the estimation of the malignancy of pulmonary nodules on thin-section helical computed tomographic (CT) scans. MATERIALS AND METHODS:The institutional review board approved use of the CT database...

journal_title：Radiology

authors： Awai K,Murao K,Ozawa A,Nakayama Y,Nakaura T,Liu D,Kawanaka K,Funama Y,Morishita S,Yamashita Y

更新日期：2006-04-01 00:00:00

abstract：:Purpose To report the results of dual-time-point gallium 68 (68Ga) prostate-specific membrane antigen (PSMA)-11 positron emission tomography (PET)/magnetic resonance (MR) imaging prior to prostatectomy in patients with intermediate- or high-risk cancer. Materials and Methods Thirty-three men who underwent conventional...

journal_title：Radiology

authors： Park SY,Zacharias C,Harrison C,Fan RE,Kunder C,Hatami N,Giesel F,Ghanouni P,Daniel B,Loening AM,Sonn GA,Iagaru A

更新日期：2018-08-01 00:00:00

abstract：:The sonograms of 34 patients with surgically proved pelvic hemoperitoneum were reviewed. In 15 of these patients clotted blood was found at surgery in the pelvis or cul-de-sac. In nine of these patients (60%), ultrasound demonstrated echogenic fluid collections or "masses" with an echogenicity equal to or greater than...

journal_title：Radiology

authors： Jeffrey RB,Laing FC

更新日期：1982-10-01 00:00:00

abstract：:Persistent pain and decreased range of motion are disabling complications of wrist trauma. Between 1978 and 1986, in ten patients with persistent pain following trauma, arthrography depicted changes characteristic of adhesive capsulitis. Adhesive capsulitis has been described in the shoulder, hip, and ankle, but littl...

journal_title：Radiology

authors： Maloney MD,Sauser DD,Hanson EC,Wood VE,Thiel AE

更新日期：1988-04-01 00:00:00

abstract：PURPOSE:To evaluate radiologic findings of peripheral T-cell lymphoma (PTCL) of the colon at double-contrast barium enema examination. MATERIALS AND METHODS:Double-contrast barium enema findings in six patients with pathologically proved PTCL of the colon were retrospectively evaluated and compared with colonoscopic a...

journal_title：Radiology

authors： Lee HJ,Han JK,Kim TK,Kim YH,Kim KW,Choi BI

更新日期：2001-03-01 00:00:00

abstract：:The authors reviewed their experience with 320 transaxillary arteriograms, as well as the English-language literature on neuropathy complicating transaxillary arteriography. Three of their patients had median and ulnar motor and sensory nerve injury, and six others had only sensory involvement. The occurrence or sever...

journal_title：Radiology

authors： Smith DC,Mitchell DA,Peterson GW,Will AD,Mera SS,Smith LL

更新日期：1989-10-01 00:00:00

abstract：:The American College of Radiology's Commission on Nuclear Magnetic Resonance has recommended adoption of the term "Magnetic Resonance" as a replacement. The author offers background and rationale for this shift in terminology. ...

journal_title：Radiology

authors： Meaney TF

更新日期：1984-01-01 00:00:00

abstract：PURPOSE:To assess the outcome of interventional radiologic placement of tunneled hemodialysis catheters via the right internal jugular vein. MATERIALS AND METHODS:In 194 patients, the catheter was placed via the right internal jugular vein unless thrombosis was present. Real-time ultrasound-guided puncture and fluoros...

journal_title：Radiology

authors： Trerotola SO,Johnson MS,Harris VJ,Shah H,Ambrosius WT,McKusky MA,Kraus MA

更新日期：1997-05-01 00:00:00

abstract：:Multiple renal arteries originating from the aortoiliac vessels were identified angiographically in 44% of 444 prospective renal donors. Bilateral multiple renal arteries were identified in 12%. With good immunological donor-recipient matching, 17 kidneys with multiple renal arteries were transplanted with excellent r...

journal_title：Radiology

authors： Spring DB,Salvatierra O Jr,Palubinskas AJ,Amend WJ Jr,Vincenti FG,Feduska NJ

更新日期：1979-10-01 00:00:00