Malignant hemorrhagic renal cyst with occult neoplasm.

abstract：PURPOSE:To prospectively determine sensitivity and specificity of breast magnetic resonance (MR) imaging in a screening and symptomatic population by using independent double reading, with histologic or cytologic results or a minimum 18-month follow-up as the standard. MATERIALS AND METHODS:Informed consent and ethica...

journal_title：Radiology

authors： Warren RM,Pointon L,Thompson D,Hoff R,Gilbert FJ,Padhani A,Easton D,Lakhani SR,Leach MO,UK Magnetic Resonance Imaging in Breast Screening (MARIBS) Study Group.

更新日期：2005-09-01 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：:Multiphasic examinations of 153 gastric abnormalities observed radiologically and endoscopically were reviewed to determine the efficacy of four radiologic techniques and of several common combinations of these techniques for examining the stomach. There were 68 gastric ulcers, 12 ulcer scars, 44 cases of gastritis in...

journal_title：Radiology

authors： Gelfand DW,Chen YM,Ott DJ

更新日期：1987-03-01 00:00:00

abstract：PURPOSE:To assess diagnostic accuracy and interobserver variability at venous enhanced subtracted peak arterial (VESPA) magnetic resonance (MR) venography compared with those at conventional venography for the diagnosis of femoral and iliac deep venous thrombosis (DVT). MATERIALS AND METHODS:A single anteroposterior m...

journal_title：Radiology

authors： Fraser DG,Moody AR,Davidson IR,Martel AL,Morgan PS

更新日期：2003-03-01 00:00:00

abstract：PURPOSE:To compare prenatal ultrasonography (US) and magnetic resonance (MR) imaging for the diagnosis of fetal anomalies. MATERIALS AND METHODS:Images of 27 fetuses (28 diagnostic cases) with anomalies diagnosed at US were evaluated; in these fetuses, prenatal MR imaging was performed within 15 days of US. Prenatal U...

journal_title：Radiology

authors： Frates MC,Kumar AJ,Benson CB,Ward VL,Tempany CM

更新日期：2004-08-01 00:00:00

abstract：:Six opossums were evaluated as a possible animal model of radiation esophagitis. In a single exposure to the esophagus, four animals received 60Co radiation of various doses; two served as controls. Pre- and postirradiation evaluations using fiberoptic endoscopy, mucosal biopsy, barium esophagography, and manometry we...

journal_title：Radiology

authors： Northway MG,Libshitz HI,West JJ,Withers HR,Mukhopadhyay AK,Osborne BM,Szwarc IA,Dodd GD

更新日期：1979-06-01 00:00:00

abstract：PURPOSE:To determine whether magnetic resonance (MR) spectroscopic imaging reveals metabolic changes, especially decreased N-acetylaspartate (NAA) concentrations outside the medial temporal lobe in patients with mesial temporal lobe epilepsy (TLE), consistent with neuropathologic findings of extratemporal neuronal impa...

journal_title：Radiology

authors： Vermathen P,Laxer KD,Schuff N,Matson GB,Weiner MW

更新日期：2003-01-01 00:00:00

abstract：PURPOSE:To evaluate the data acquired over 2 1/2 years regarding the use of mechanical thrombolysis as the routine, preferred treatment for thrombosed access grafts in a large patient population undergoing hemodialysis. MATERIALS AND METHODS:Mechanical thrombolysis was performed in 1,176 cases. Data were collected on ...

journal_title：Radiology

authors： Beathard GA,Welch BR,Maidment HJ

更新日期：1996-09-01 00:00:00

abstract：PURPOSE:To evaluate a semiflexible ultrasound (US) transducer inserted through a laparoscopic port to image abdominal structures. MATERIALS AND METHODS:Laparoscopic US with a 9.6-mm-diameter, 5.0-7.5-MHz semiflexible transducer with gray-scale, color, and spectral Doppler capabilities was performed in three miniature ...

journal_title：Radiology

authors： Liu JB,Feld RI,Goldberg BB,Barbot DJ,Nazarian LN,Merton DA,Rawool NM,Rosato FE,Winkel CA,Gillum DR

更新日期：1995-03-01 00:00:00

abstract：:Esophageal motor disorders are best evaluated with manometry, which, however, is time-consuming and not generally available. The authors prospectively investigated the yield of videofluoroscopy in detection of esophageal motor disorders in comparison with that of manometry. Eighty-eight patients with dysphagia, globus...

journal_title：Radiology

authors： Schima W,Stacher G,Pokieser P,Uranitsch K,Nekahm D,Schober E,Moser G,Tscholakoff D

更新日期：1992-11-01 00:00:00

abstract：:Purpose To assess subspecialty practice characteristics of the U.S. radiologist workforce. Materials and Methods This study used the Medicare Physician and Other Supplier Public Use File and did not constitute human subject research. The authors identified 33 090 radiologists who billed for professional services betwe...

journal_title：Radiology

authors： Rosenkrantz AB,Wang W,Hughes DR,Duszak R Jr

更新日期：2018-03-01 00:00:00

abstract：:Pressure, or compressive, erosions of bone in various locations in patients with rheumatoid arthritis are described. Possible pathophysiologic mechanisms that account for the appearance and distribution of these erosions include osteopenia, soft-tissue laxity, soft-tissue pressure on bone, bone pressure on bone, and m...

journal_title：Radiology

authors： Monsees B,Destouet JM,Murphy WA,Resnick D

更新日期：1985-04-01 00:00:00

abstract：PURPOSE:To assess whether ultrasonography (US)-based real-time elastography (RTE) can be used to detect gut fibrosis. MATERIALS AND METHODS:In this institutional review board-approved, prospective, proof-of-concept study, unaffected and affected gut segments in 10 patients with Crohn disease (four women, six men; medi...

journal_title：Radiology

authors： Baumgart DC,Müller HP,Grittner U,Metzke D,Fischer A,Guckelberger O,Pascher A,Sack I,Vieth M,Rudolph B

更新日期：2015-06-01 00:00:00

abstract：:Digital subtraction angiography (DSA) using a 41-cm (16-in.) image intensifier was performed in 144 patients with peripheral vascular insufficiency. In most cases the entire peripheral vascular bed from the renal arteries to the popliteal trifurcation was demonstrated with four intravenous injections and four exposed ...

journal_title：Radiology

authors： Passariello R,Rossi P,Simonetti G,Tempesta P,Pavone P,Castrucci M,McBride K

更新日期：1983-12-01 00:00:00

abstract：:The authors describe a modified Seldinger Technique for sialography which is especially helpful in cannulization of the submandibular ducts. This procedure was successful in 2. of 30 patients tested. ...

journal_title：Radiology

authors： Koch RL,Wade D

更新日期：1977-04-01 00:00:00

abstract：:Background Normalized iodine concentration (NIC) (ratio of iodine concentration of liver to that of aorta) of liver at delayed dual-energy CT (DECT) may reflect the amount of fibrosis based on the extent of iodine uptake. Purpose To stage liver fibrosis by using 5-minute delayed DECT and compare findings with those of...

journal_title：Radiology

authors： Marri UK,Das P,Shalimar,Kalaivani M,Srivastava DN,Madhusudhan KS

更新日期：2021-01-05 00:00:00

abstract：PURPOSE:To investigate the effect of duration and rate of contrast material injection on aortic peak time and peak enhancement in an injection protocol in which the contrast material dose is adjusted according to patient weight. MATERIALS AND METHODS:One hundred ninety-nine patients were randomly divided into three gr...

journal_title：Radiology

authors： Awai K,Hiraishi K,Hori S

更新日期：2004-01-01 00:00:00

abstract：:Distal splenorenal shunts were made in 25 patients with cirrhosis of the liver and portal hypertension. Angiograms were obtained in 16 patients at one week, three and six months, and at one year postoperatively. Portal vein flow had diminished in all patients compared with flow seen in preoperative angiograms. Hepatof...

journal_title：Radiology

authors： Tylén U,Simert G,Vang J

更新日期：1976-12-01 00:00:00

abstract：:A 65-year-old woman with endobronchial carcinoma had torsion of the left upper lobe. A posteroanterior chest radiograph showed apparent atelectasis in the left upper lobe, but the lateral view disclosed an inappropriate posterior displacement of the collapsed lobe. The vasculature of the affected area showed an unusua...

journal_title：Radiology

authors： Moser ES Jr,Proto AV

更新日期：1987-03-01 00:00:00

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：:The findings at magnetic resonance (MR) imaging in a group of 36 pathologically verified supratentorial gliomas were analyzed and compared with the biopsy diagnoses (a) to determine whether MR imaging could be used to classify astrocytic-series tumors into a three-tiered system of low-grade astrocytoma, anaplastic ast...

journal_title：Radiology

authors： Dean BL,Drayer BP,Bird CR,Flom RA,Hodak JA,Coons SW,Carey RG

更新日期：1990-02-01 00:00:00

abstract：:Failures and complications were analyzed retrospectively in 45 patients treated with embolotherapy or occlusion of pulmonary arterial circulation. Pulmonary arterial branches were occluded with steel coils in 19 patients with pulmonary arteriovenous malformations, 17 with hemoptysis of pulmonary artery (PA) origin, an...

journal_title：Radiology

authors： Remy-Jardin M,Wattinne L,Remy J

更新日期：1991-09-01 00:00:00

abstract：:A reciprocating Bucky design for serial film changers is described. It is simple to construct. Inexpensive, and enhances radiograph resolution by eliminating grid lines. ...

journal_title：Radiology

authors： Becker JA,Heiferman S

更新日期：1977-10-01 00:00:00

abstract：:Twenty-one children with acute leukemia received irradiation to the renal area for the following reasons: hypertension (2 patients); oliguria (5 patients); mass-related symptoms (5 patients); and as an adjuvant to supportive medical management in preventing renal failure (9 patients). All but 2 patients exhibited bone...

journal_title：Radiology

authors： Stoffel TJ,Nesbit ME,Levitt SH

更新日期：1975-12-01 00:00:00

abstract：PURPOSE:To determine the incremental benefit of combined endorectal magnetic resonance (MR) imaging and MR spectroscopic imaging, as compared with endorectal MR imaging alone, for sextant localization of peripheral zone (PZ) prostate cancer. MATERIALS AND METHODS:This prospective multicenter study, conducted by the Am...

journal_title：Radiology

authors： Weinreb JC,Blume JD,Coakley FV,Wheeler TM,Cormack JB,Sotto CK,Cho H,Kawashima A,Tempany-Afdhal CM,Macura KJ,Rosen M,Gerst SR,Kurhanewicz J

更新日期：2009-04-01 00:00:00

abstract：PURPOSE:To determine the speed of and changes in the speed of coronary arterial movement during the cardiac cycle with electron-beam computed tomography (CT). MATERIALS AND METHODS:With electron-beam CT, 20 consecutive cross-sectional images were acquired at the mid right coronary artery (with 50-msec acquisition time...

journal_title：Radiology

authors： Achenbach S,Ropers D,Holle J,Muschiol G,Daniel WG,Moshage W

更新日期：2000-08-01 00:00:00

abstract：:Phase-contrast x-ray computed tomography (CT) indicates the distribution of the refractive index and has potential to reveal the structures inside soft tissues without a contrast agent. With a synchrotron x-ray source, phase-contrast x-ray CT with a triple Laue-case x-ray interferometer clearly differentiated various ...

journal_title：Radiology

authors： Takeda T,Momose A,Hirano K,Haraoka S,Watanabe T,Itai Y

更新日期：2000-01-01 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 clinical response to treatment of calcified tendinitis of the shoulder by using a modified percutaneous ultrasonography (US)-guided fine-needle technique. MATERIALS AND METHODS:Thirty shoulders of 30 consecutive patients (23 women, seven men; mean age, 47.4 years) with chronic shoulder pain (averag...

journal_title：Radiology

authors： Aina R,Cardinal E,Bureau NJ,Aubin B,Brassard P

更新日期：2001-11-01 00:00:00

abstract：PURPOSE:To determine whether hemangiomas and malignant tumors can be better differentiated at 1.5-T magnetic resonance imaging with use of more heavily T2-weighted conventional spin-echo sequences. MATERIALS AND METHODS:Eighty-three patients with focal liver lesions (50 malignant tumors, 24 hemangiomas, nine cysts) la...

journal_title：Radiology

authors： McFarland EG,Mayo-Smith WW,Saini S,Hahn PF,Goldberg MA,Lee MJ

更新日期：1994-10-01 00:00:00