Redefinitions of indications for percutaneous nephrostomy.

abstract：:Intravascular injection of some radiographic contrast media causes a fall in the concentration of unbound serum calcium (Ca++) and an increase in serum immunoreactive parathyroid hormone (iPTH). The decrease in Ca++ levels was attributed to the presence in the contrast media of calcium chelating agents (disodium edeta...

journal_title：Radiology

authors： Mallette LE,Gomez LS

更新日期：1983-06-01 00:00:00

abstract：:In a 27-year-old man with claudication, computed tomography (CT) demonstrated a popliteal cyst and an adventitial cyst of the popliteal artery. Adventitial cystic disease was unexpected because the patient had a diminished pedal pulse on plantar flexion of the foot, a physical finding suggesting popliteal artery entra...

journal_title：Radiology

authors： Jasinski RW,Masselink BA,Partridge RW,Deckinga BG,Bradford PF

更新日期：1987-04-01 00:00:00

abstract：:Twenty-five patients, each of whom had peripheral intrathoracic lesions that were smaller than 5.0 X 5.0 cm in size and not diagnosed by conventional methods, underwent real-time sonography and ultrasonically guided aspiration biopsy. The lesions included 18 nodules, two infiltrates, and five cavitary lesions. Sonogra...

journal_title：Radiology

authors： Yang PC,Luh KT,Sheu JC,Kuo SH,Yang SP

更新日期：1985-05-01 00:00:00

abstract：:Benign clear-cell tumor of the lung is a rare, distinctive, primary neoplasm with unique histologic and electron microscopic features which may resemble metastatic renal-cell carcinoma. This tumor typically presents as an asymptomatic, peripheral, sharply rounded mass in the lung. Clinical recognition can prevent an u...

journal_title：Radiology

authors： Harbin WP,Mark GJ,Greene RE

更新日期：1978-12-01 00:00:00

abstract：:Calcifications located in the dermis of the breast may appear indistinguishable from intramammary calcifications. The authors present a sign, called the tattoo sign, that can help radiologists identify dermal calcifications. When mammograms are compared, calcifications that maintain a fixed relationship to each other ...

journal_title：Radiology

authors： Homer MJ,D'Orsi CJ,Sitzman SB

更新日期：1994-07-01 00:00:00

abstract：:The pressures generated by a barium suspension and various solutions of meglumine sodium diatrizoate in water were measured with a manometer. A pressure of 120 mm Hg was produced by a 3.5-foot (105-cm) column of 60% wt/vol barium and a 5-foot (150-cm) column of either a 1:3 or 1:4 solution of meglumine sodium diatrizo...

journal_title：Radiology

authors： Kuta AJ,Benator RM

更新日期：1990-04-01 00:00:00

abstract：:A survey of the members of the Society for Pediatric Radiology indicates that currently the majority of pediatric radiologists do not perform or interpret examinations using radionuclides, ultrasound, or computed tomography (CT). A decisive factor determining involvement with these techniques is the type of institutio...

journal_title：Radiology

authors： Leonidas JC,McCauley RG,Faerber EN

更新日期：1981-01-01 00:00:00

abstract：PURPOSE:To identify the complications and imaging findings related to lymphangioleiomyomatosis (LAM) after lung transplantation. MATERIALS AND METHODS:The authors retrospectively reviewed the clinical histories and imaging studies of 13 patients from five major medical centers who underwent unilateral (n = 8) or bilat...

journal_title：Radiology

authors： Collins J,Müller NL,Kazerooni EA,McAdams HP,Leung AN,Love RB

更新日期：1999-02-01 00:00:00

abstract：PURPOSE:To characterize the radiographic features of ventilator-associated Pseudomonas aeruginosa pneumonia (PAP). MATERIALS AND METHODS:In 56 patients (40 men and 16 women), PAP was documented with fiberoptic bronchoscopy. All patients underwent mechanical ventilation for at least 48 hours before diagnosis. The findi...

journal_title：Radiology

authors： Winer-Muram HT,Jennings SG,Wunderink RG,Jones CB,Leeper KV Jr

更新日期：1995-04-01 00:00:00

abstract：:A case of actinomycosis involving the pelvic cavity is reported. The patient had a pelvic mass clinically and radiographically. Barium enema examination showed a mass with extrinsic compression and fixed narrowing of the rectum with mucosal irregularity. A computed tomographic scan showed a pelvic mass displacing the ...

journal_title：Radiology

authors： Maloney JJ,Cho SR

更新日期：1983-08-01 00:00:00

abstract：:Background The Alberta Stroke Program Early CT Score (ASPECTS) evaluation is a qualitative method to evaluate focal hypoattenuation at brain CT in early acute stroke. However, interobserver agreement is only moderate. Purpose To compare ASPECTS calculated by using an automatic software tool to neuroradiologist evaluat...

journal_title：Radiology

authors： Maegerlein C,Fischer J,Mönch S,Berndt M,Wunderlich S,Seifert CL,Lehm M,Boeckh-Behrens T,Zimmer C,Friedrich B

更新日期：2019-04-01 00:00:00

abstract：PURPOSE:To prospectively compare single- and multisection computed tomographic (CT) perfusion for tumor blood flow determination in an animal model. MATERIALS AND METHODS:All animal protocols and experiments were approved by the institutional animal care and use committee before the study was initiated. R3230 mammary ...

journal_title：Radiology

authors： Hakimé A,Peddi H,Hines-Peralta AU,Wilcox CJ,Kruskal J,Lin S,de Baere T,Raptopoulos VD,Goldberg SN

更新日期：2007-06-01 00:00:00

abstract：PURPOSE:To assess methods of standard uptake ratio (SUR) calculation with 2-deoxy-2-[fluorine-18]fluoro-D-glucose (FDG) positron emission tomography (PET) in indeterminate focal pulmonary abnormalities. MATERIALS AND METHODS:One hundred ninety-seven adult patients with indeterminate pulmonary abnormalities had complet...

journal_title：Radiology

authors： Lowe VJ,Duhaylongsod FG,Patz EF,Delong DM,Hoffman JM,Wolfe WG,Coleman RE

更新日期：1997-02-01 00:00:00

abstract：PURPOSE:To evaluate the variability of true-positive and false-positive cues by using a commercially available computer-aided detection (CAD) system for analysis of 50 malignancies in a screening population. MATERIALS AND METHODS:Fifty breast cancers detected at screening were analyzed by using a commercially availabl...

journal_title：Radiology

authors： Baker JA,Lo JY,Delong DM,Floyd CE

更新日期：2004-11-01 00:00:00

abstract：:It appears reasonable to suggest a histological diagnosis of ependymoma when CT shows an isodense tumor expanding the fourth ventricle or lying within its outlets; when the tumor contains small, round calcifications; and when presentation occurs early in life. An isodense mass occurring in the cerebral white matter, c...

journal_title：Radiology

authors： Swartz JD,Zimmerman RA,Bilaniuk LT

更新日期：1982-04-01 00:00:00

abstract：:A vena caval filter than can be introduced percutaneously via the femoral vein is described. We placed these filters in five patients without complications. Experimental work in filter removal one to two weeks after insertion in dogs has been performed. ...

journal_title：Radiology

authors： Lund G,Rysavy J,Hunter DW,Castaneda-Zuniga WR,Amplatz K

更新日期：1985-06-01 00:00:00

abstract：:The authors report an inflammatory fibroid polyp of the colon which simulated a tumor on the air-contrast barium-enema examination. Histological evaluation revealed the inflammatory nature of the polyp. These rare lesions can be radiographically indistinguishable from primary colon carcinoma. ...

journal_title：Radiology

authors： Ferin P,Skucas J

更新日期：1983-10-01 00:00:00

abstract：PURPOSE:To investigate the mechanism of enhancement of hepatocellular carcinoma (HCC) on gadoxetic acid-enhanced hepatobiliary phase magnetic resonance (MR) images and to characterize HCC thus enhanced. MATERIALS AND METHODS:This retrospective study was approved by the institutional review board, and patient informed ...

journal_title：Radiology

authors： Tsuboyama T,Onishi H,Kim T,Akita H,Hori M,Tatsumi M,Nakamoto A,Nagano H,Matsuura N,Wakasa K,Tomoda K

更新日期：2010-06-01 00:00:00

abstract：:From 1962 to 1984, 13 patients with juvenile nasopharyngeal angiofibroma (JNA) were treated with megavoltage radiation therapy. Follow-up ranged from 40 to 255 months (median, 136 months). Two patients received radiation therapy as the initial treatment; the other 11 patients had undergone unsuccessful previous surgic...

journal_title：Radiology

authors： Fields JN,Halverson KJ,Devineni VR,Simpson JR,Perez CA

更新日期：1990-07-01 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：:Molecular imaging, generally defined as noninvasive imaging of cellular and subcellular events, has gained tremendous depth and breadth as a research and clinical discipline in recent years. The coalescence of major advances in engineering, molecular biology, chemistry, immunology, and genetics has fueled multi- and i...

journal_title：Radiology

authors： Kircher MF,Willmann JK

更新日期：2012-06-01 00:00:00

abstract：:Three cases of a basilar/middle meningeal artery anastomosis are demonstrated angiographically. No reference to previous angiographic demonstration of this vascular anomaly has been found in the literature, and only one similar case with an anatomical description has been located. An embryological explanation of this ...

journal_title：Radiology

authors： Seeger JF,Hemmer JF

更新日期：1976-02-01 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：:Twenty-three patients with malignant hepatic tumors underwent magnetic resonance (MR) imaging before and after intravenous administration of gadolinium-diethylene-triaminepentaacetic acid (DTPA). Two different doses were used, 0.1 mmol/kg and 0.2 mmol/kg. The larger dose proved to be more effective than the smaller do...

journal_title：Radiology

authors： Hamm B,Wolf KJ,Felix R

更新日期：1987-08-01 00:00:00

abstract：:To determine the value of high-resolution computed tomography (HRCT) in the diagnosis of diffuse pulmonary diseases, a direct HRCT-pathologic correlative study was performed using four inflated and fixed lungs from autopsy. In normal lungs, the smallest pulmonary artery resolved by HRCT was 200 microns in diameter; th...

journal_title：Radiology

authors： Murata K,Itoh H,Todo G,Kanaoka M,Noma S,Itoh T,Furuta M,Asamoto H,Torizuka K

更新日期：1986-12-01 00:00:00

abstract：:Background Results of recent phantom studies show that variation in CT acquisition parameters and reconstruction techniques may make radiomic features largely nonreproduceable and of limited use for prognostic clinical studies. Purpose To investigate the effect of CT radiation dose and reconstruction settings on the r...

journal_title：Radiology

authors： Meyer M,Ronald J,Vernuccio F,Nelson RC,Ramirez-Giraldo JC,Solomon J,Patel BN,Samei E,Marin D

更新日期：2019-12-01 00:00:00

abstract：:A study of 11 patients with "double pylorus" revealed that a second channel between the gastric antrum and the duodenal bulb is the result of ulcer penetration. The fistula can be a sign of spontaneous recovery from ulcerative disease; the fistula occurred in conjunction with clinical improvement in the majority of th...

journal_title：Radiology

authors： Hegedus V,Poulsen PE,Reichardt J

更新日期：1978-01-01 00:00:00

abstract：PURPOSE:To assess the value of clinical, chest radiographic, and computed tomographic (CT) findings in classifying chronic diffuse infiltrative lung disease (CDILD) MATERIALS AND METHODS: Two samples from the same population were consecutively studied: the training set (group A, n = 208) for the development of the deci...

journal_title：Radiology

authors： Grenier P,Chevret S,Beigelman C,Brauner MW,Chastang C,Valeyre D

更新日期：1994-05-01 00:00:00

abstract：:In a retrospective study, thin-walled cystic lesions were identified in four patients with proved bronchioalveolar carcinoma (BAC). The radiographic appearances are described, and possible mechanisms of formation of the lesions are discussed. Although such appearances due to BAC have rarely been described in the liter...

journal_title：Radiology

authors： Weisbrod GL,Towers MJ,Chamberlain DW,Herman SJ,Matzinger FR

更新日期：1992-11-01 00:00:00

abstract：:Although intrauterine hydronephrosis can be detected readily by ultrasound, follow-up ultrasound evaluation on the first day of life may show a falsely normal-appearing kidney. The authors present three infants in whom subsequent studies confirmed the presence of upper urinary tract obstruction. It is postulated that ...

journal_title：Radiology

authors： Laing FC,Burke VD,Wing VW,Jeffrey RB Jr,Hashimoto B

更新日期：1984-08-01 00:00:00