Fibrous ureteral polyps.

abstract：PURPOSE:To investigate whether smoking has an effect on recurrent lumen narrowing after percutaneous transluminal angioplasty (PTA) or stent placement in lower-limb arteries. MATERIALS AND METHODS:A total of 650 patients (median age, 70 years; 389 men) with peripheral artery disease who underwent iliac artery PTA (n =...

journal_title：Radiology

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

更新日期：2004-06-01 00:00:00

abstract：PURPOSE:To analyze the contribution of the transverse relaxation parameter (T2), macroscopic field inhomogeneities (B0), and blood volume fraction (BVf) to blood oxygen level-dependent (BOLD)-based magnetic resonance (MR) measurements of blood oxygen saturation (SO2) obtained in a brain tumor model. MATERIALS AND METH...

journal_title：Radiology

authors： Christen T,Lemasson B,Pannetier N,Farion R,Remy C,Zaharchuk G,Barbier EL

更新日期：2012-02-01 00:00:00

abstract：:Emission computed tomography (ECT) studies were performed on test objects and dogs. Conjugate views were obtained for 60 to 120 projections equispaced around 360 degrees by rotation of the subjects in front of a gamma camera. A convolution reconstruction algorithm in which gamma ray attenuation corrections are include...

journal_title：Radiology

authors： Gustafson DE,Berggren MJ,Singh M,Dewanjee MK

更新日期：1978-10-01 00:00:00

abstract：:Twenty-eight patients with intra-abdominal mesenchymal sarcomas were examined with gray scale ultrasonography. Masses were present in the mesentery, abdominal hollow viscera, liver, and retroperitoneal areas. Four different ultrasonic patterns were observed in the extra hepatic abdominal masses: (a) hyperechoic masses...

journal_title：Radiology

authors： Bree RL,Green B

更新日期：1978-07-01 00:00:00

abstract：:Magnetic resonance (MR) imaging-related artifacts associated with five different aneurysm clips made of five different metals (commercially pure titanium, titanium alloy, Phynox, Elgiloy, and cobalt alloy) were evaluated. Aneurysm clips made of commercially pure titanium and titanium alloy produced the smallest artifa...

journal_title：Radiology

authors： Shellock FG,Kanal E

更新日期：1998-11-01 00:00:00

abstract：:Four patients with proved osteopetrosis (three with the infantile malignant form and one with the benign form) were examined with magnetic resonance imaging at 1.5 T. All patients were studied in the coronal and sagittal planes using both short and long repetition time/echo time sequences. The infantile malignant form...

journal_title：Radiology

authors： Rao VM,Dalinka MK,Mitchell DG,Spritzer CE,Kaplan F,August CS,Axel L,Kressel HY

更新日期：1986-10-01 00:00:00

abstract：:A variation in ossification of the acromial process of the scapula is described. Postmortem radiographs, obtained in 78 infants who died of sudden infant death syndrome, showed an ossific opacity adjacent to the acromial process in 10 infants (13%). This finding was noted bilaterally in six patients and unilaterally i...

journal_title：Radiology

authors： Kleinman PK,Spevak MR

更新日期：1991-07-01 00:00:00

abstract：:One hundred fifty-eight magnetic resonance (MR) imaging studies of the spine were reviewed to assess the frequency and distribution of focal deposits with signal behavior typical of fat in the axial bone marrow. In addition, three fresh cadaveric spines were evaluated with MR imaging and subsequently sectioned for ana...

journal_title：Radiology

authors： Hajek PC,Baker LL,Goobar JE,Sartoris DJ,Hesselink JR,Haghighi P,Resnick D

更新日期：1987-01-01 00:00:00

abstract：:The authors obtained sagittal magnetic resonance (MR) images twice a week from six healthy women during one full menstrual cycle to establish the changes depicted in the uterine layers. Parallel endocrine and ultrasound studies were used to establish the day of ovulation precisely. Consistent changes in the thickness ...

journal_title：Radiology

authors： Haynor DR,Mack LA,Soules MR,Shuman WP,Montana MA,Moss AA

更新日期：1986-11-01 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 compare the reliability of acoustic radiation force impulse (ARFI) imaging and supersonic shear imaging (SSI) in measurement of liver stiffness. MATERIALS AND METHODS:This study was approved by the institutional review board, and written informed consent was obtained for all patients. Seventy-nine patients ...

journal_title：Radiology

authors： Woo H,Lee JY,Yoon JH,Kim W,Cho B,Choi BI

更新日期：2015-12-01 00:00:00

abstract：PURPOSE:To determine the dose characteristics of multi-detector row computed tomography (CT) and to provide tabulated dose values and rules of thumb that assist in minimizing the radiation dose at multi-detector row CT. MATERIALS AND METHODS:Weighted CT dose index (CTDI100w) values were obtained from three multi-detec...

journal_title：Radiology

authors： Hamberg LM,Rhea JT,Hunter GJ,Thrall JH

更新日期：2003-03-01 00:00:00

abstract：PURPOSE:To evaluate the reliability of ultrasonographic (US) elastography of the supraspinatus (SSP) muscle, define normal shear-wave velocity (SWV) values, and correlate findings with tendon integrity and muscle quality. MATERIALS AND METHODS:The study was approved by the local ethics committee, and written informed ...

journal_title：Radiology

authors： Rosskopf AB,Ehrmann C,Buck FM,Gerber C,Flück M,Pfirrmann CW

更新日期：2016-02-01 00:00:00

abstract：:Purpose To determine the effects of patient age and comorbidity level on life expectancy (LE) benefits associated with imaging follow-up of Bosniak IIF renal cysts and pancreatic side-branch (SB) intraductal papillary mucinous neoplasms (IPMNs). Materials and Methods A decision-analytic Markov model to evaluate LE ben...

journal_title：Radiology

authors： Raphel TJ,Weaver DT,Berland LL,Herts BR,Megibow AJ,Knudsen AB,Pandharipande PV

更新日期：2018-05-01 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

abstract：:Successful opacification and distention of the inferior vena cava was obtained simultaneously with computed tomography by contrast infusion through a lower-extremity vein. Images obtained by this method displayed retroperitoneal anatomical relationships to better advantage, permitting more accurate interpretation of t...

journal_title：Radiology

authors： Pillari G

更新日期：1979-03-01 00:00:00

abstract：:99mTc-HIDA is concentrated by the hepatocytes and excreted into the biliary system; the gallbladder, common bile duct, and early accumulation in the duodenum are visualized within 30 minutes of intravenous administration. The authors studied the utility of 99mTc-HIDA imaging in both acute and chronic cholecystitis and...

journal_title：Radiology

authors： Rosenthall L,Shaffer EA,Lisbona R,Pare P

更新日期：1978-02-01 00:00:00

abstract：:The National Institutes of Health (NIH) comprise the largest single source of funding in the world for the support of biomedical research. Much of the work of the NIH focuses on the elucidation of fundamental biophysical, biochemical, and biologic aspects of the molecular, cellular, and tissue processes underlying bot...

journal_title：Radiology

authors： Wolbarst AB,Hendee WR

更新日期：2007-01-01 00:00:00

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：:In a patient with Paget disease, two of three lytic fronts ("blade-of-grass" lesions) healed according to radiologic criteria during intermittent diphosphonate therapy. ...

journal_title：Radiology

authors： Murphy WA,Whyte MP,Haddad JG Jr

更新日期：1980-03-01 00:00:00

abstract：PURPOSE:To assess the diagnostic value of spinal ultrasonography (US) in pediatric patients. MATERIALS AND METHODS:The findings on 38 spinal US scans in 30 patients (mean age, 5.5 months) were compared with those of corresponding magnetic resonance (MR) images. RESULTS:MR imaging showed a normal spinal canal in 14 of...

journal_title：Radiology

authors： Rohrschneider WK,Forsting M,Darge K,Tröger J

更新日期：1996-08-01 00:00:00

abstract：PURPOSE:To assess the benefit of adding diffusion-weighted (DW) imaging to gadoxetic acid-enhanced magnetic resonance (MR) imaging and MR cholangiopancreatography in the preoperative evaluation of hilar cholangiocarcinoma. MATERIALS AND METHODS:The institutional review board approved this retrospective study and waive...

journal_title：Radiology

authors： Park MJ,Kim YK,Lim S,Rhim H,Lee WJ

更新日期：2014-03-01 00:00:00

abstract：PURPOSE:To determine the effect of the interpretation of plain chest radiographs on the time to definitive diagnosis of aortic dissection. MATERIALS AND METHODS:The authors evaluated chest radiographs from 75 patients in whom chest radiography was performed before aortic dissection was diagnosed. The radiographs and a...

journal_title：Radiology

authors： Luker GD,Glazer HS,Eagar G,Gutierrez FR,Sagel SS

更新日期：1994-12-01 00:00:00

abstract：:The importance of axillary node status in the prognosis of breast cancer led the authors to conduct a prospective study comparing the value of clinical examination with ultrasound (US) performed by a transpectoral approach. All 60 patients examined underwent axillary dissection. Sensitivity was 45.4% for clinical exam...

journal_title：Radiology

authors： Bruneton JN,Caramella E,Héry M,Aubanel D,Manzino JJ,Picard JL

更新日期：1986-02-01 00:00:00

abstract：:Doppler sonography and magnetic resonance (MR) angiography were prospectively used in combination as a substitute for conventional angiography in 24 consecutive patients likely to undergo carotid endarterectomy. Of 19 patients (20 lesions) who underwent carotid endarterectomy, 18 had not undergone preoperative angiogr...

journal_title：Radiology

authors： Polak JF,Kalina P,Donaldson MC,O'Leary DH,Whittemore AD,Mannick JA

更新日期：1993-02-01 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：:The authors reviewed 100 randomized controlled trials (RCTs) conducted in humans to compare safety or efficacy of new low-osmolality contrast media (LOM) with that of high-osmolality contrast media (HOM). Findings of the 43 RCTs judged to be of the highest quality suggest that the efficacy of LOM in imaging is equal o...

journal_title：Radiology

authors： Kinnison ML,Powe NR,Steinberg EP

更新日期：1989-02-01 00:00:00

abstract：PURPOSE:To prospectively evaluate the safety and efficacy of undersized stents used in patients with high-grade intracranial stenosis and recurrent ischemic symptoms who are undergoing medical treatment. MATERIALS AND METHODS:In 18 patients (13 men, five women; age range, 51-82 years), 20 high-grade (>70%) intracrania...

journal_title：Radiology

authors： de Rochemont Rdu M,Turowski B,Buchkremer M,Sitzer M,Zanella FE,Berkefeld J

更新日期：2004-04-01 00:00:00

abstract：:To compare two methods of evaluating patients with coronary artery disease, the authors assessed the ejection fraction (EF) during the first-third (1/3) of systole by first-pass radionuclide angiography and the EF response to exercise in 22 normal individuals and 40 patients. The 1/3 EF was calculated by averaging 3--...

journal_title：Radiology

authors： Slutsky R,Battler A,Karliner JS,Froelicher V,Ashburn W

更新日期：1980-07-01 00:00:00

abstract：:A new renal imaging agent, technetium-99m mercaptoacetyltriglycine (MAG3, mertiatide), is currently undergoing clinical trials. Like iodine-131 orthoiodohippurate (OIH)--and unlike all other available agents--it is avidly secreted by the renal tubules. Fifty patients underwent simultaneous renal imaging studies with I...

journal_title：Radiology

authors： Russell CD,Thorstad BL,Stutzman ME,Yester MV,Fowler D,Dubovsky EV

更新日期：1989-08-01 00:00:00