Pneumoperitoneum, pneumomediastinum and pneumopericardium following dental extraction.

abstract：PURPOSE:To prospectively investigate the effect of low tube voltage on radiation dose, contrast enhancement, image quality, and image noise at abdominal dynamic computed tomography (CT). MATERIALS AND METHODS:The institutional review board approved this study. Prior informed consent was obtained from all patients. For...

journal_title：Radiology

authors： Nakayama Y,Awai K,Funama Y,Hatemura M,Imuta M,Nakaura T,Ryu D,Morishita S,Sultana S,Sato N,Yamashita Y

更新日期：2005-12-01 00:00:00

abstract：PURPOSE:To illustrate the normal variants and developmental anomalies of the skull base on computed tomographic (CT) scans. MATERIALS AND METHODS:One hundred eighty-nine children (age range, newborn to 18 years; median age, 4.0 years) without skull base deformity were referred for cranial CT. Normal developmental vari...

journal_title：Radiology

authors： Madeline LA,Elster AD

更新日期：1995-09-01 00:00:00

abstract：:Of 500 patients referred for an examination of the upper gastrointestinal tract, 15% were found to have radiographic evidence of esophageal disease. A cursory esophageal survey appears to be insufficient. Thorough evaluation should consist of a minimal multiphasic approach involving double- and single-contrast radiogr...

journal_title：Radiology

authors： Maglinte DD,Schultheis TE,Krol KL,Caudill LD,Chernish SM,McCune WM

更新日期：1983-04-01 00:00:00

abstract：PURPOSE:To determine the diagnostic accuracy of bedside chest radiography in patients who develop severe pulmonary complications while undergoing therapy for leukemia. MATERIALS AND METHODS:The authors studied 45 patients, aged 21 years and younger, who died of leukemia or of treatment complications and for whom autop...

journal_title：Radiology

authors： Winer-Muram HT,Rubin SA,Fletcher BD,Kauffman WM,Jennings SG,Arheart KL,Bozeman PM

更新日期：1994-10-01 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：PURPOSE:To prospectively compare brain magnetic resonance (MR) imaging and hydrogen 1 (1H) MR spectroscopy findings and to use functional MR imaging to explore the patterns of brain activation in men and women with Fabry disease (FD). MATERIALS AND METHODS:Eight men and eight women with FD (mean age, 38.8 years +/- 13...

journal_title：Radiology

authors： Gavazzi C,Borsini W,Guerrini L,Della Nave R,Rocca MA,Tessa C,Buchner S,Belli G,Filippi M,Villari N,Mascalchi M

更新日期：2006-11-01 00:00:00

abstract：:One hundred and two patients, who were being evaluated for carotid artery disease, were prospectively studied for complications occurring as a result of intravenous digital subtraction angiography (DSA). We recorded the type, number, and outcome of complications and reviewed the amount of contrast material used, along...

journal_title：Radiology

authors： Aaron JO,Hesselink JR,Oot R,Jones RL,Davis KR,Taveras JM

更新日期：1984-12-01 00:00:00

abstract：PURPOSE:To evaluate the effect of dual-source parallel radiofrequency (RF) transmission with patient-adaptive local RF shimming on image quality, image contrast, and diagnostic confidence at routine clinical cardiac magnetic resonance (MR) imaging with use of a 3.0-T dual-channel transmit whole-body MR system. MATERIA...

journal_title：Radiology

authors： Mueller A,Kouwenhoven M,Naehle CP,Gieseke J,Strach K,Willinek WA,Schild HH,Thomas D

更新日期：2012-04-01 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 assess retrospectively the incidence, clinical features, and treatment of colonic perforation at computed tomographic (CT) colonography in a large multicenter cohort. MATERIALS AND METHODS:The study was performed in accordance with the institutional ethics committees' requirements of a retrospective review ...

journal_title：Radiology

authors： Sosna J,Blachar A,Amitai M,Barmeir E,Peled N,Goldberg SN,Bar-Ziv J

更新日期：2006-05-01 00:00:00

abstract：:Images from endoscopic retrograde pancreatography performed in 38 patients with cystic pancreatic neoplasms were reviewed to determine whether they might allow differentiation of malignant from benign lesions. Twenty-three patients had histologically proved benign lesions; 15 had frankly malignant lesions. Images were...

journal_title：Radiology

authors： Gazelle GS,Mueller PR,Raafat N,Halpern EF,Cardenosa G,Warshaw AL

更新日期：1993-09-01 00:00:00

abstract：:I-123 HIPDM is a brain imaging agent thought to reflect cerebral cortical perfusion. Increased uptake of I-123 HIPDM occurred unexpectedly in two cases of intracranial tumors. ...

journal_title：Radiology

authors： McVeigh MC,Merchut MP,Karesh SM,Ghobrial MW,Dillehay GL

更新日期：1986-11-01 00:00:00

abstract：PURPOSE:To evaluate the use of magnetic resonance (MR) imaging and computed tomography (CT) for predicting the histologic grade of parosteal osteosarcomas. MATERIALS AND METHODS:Sixty parosteal osteosarcomas were analyzed for tumor size and location, presence of a cleavage plane, intramedullary extension, soft-tissue ...

journal_title：Radiology

authors： Jelinek JS,Murphey MD,Kransdorf MJ,Shmookler BM,Malawer MM,Hur RC

更新日期：1996-12-01 00:00:00

abstract：:Background Thermal ablation of cancers may be associated with high rates of local tumor progression. A thermal accelerant gel has been developed to improve the transmission of microwave energy in biologic tissues with the aim of enlarging the thermal ablation zone. Purpose To determine the effects of a thermal acceler...

journal_title：Radiology

authors： Maxwell AWP,Park WKC,Baird GL,Martin DW,Lombardo KA,Dupuy DE

更新日期：2019-05-01 00:00:00

abstract：:Sonographic analysis of the sciatic nerve was performed in vitro (anatomic specimen), in vivo (healthy volunteers), and in 16 patients with suspected peripheral sciatic nerve lesions. The ultrasound (US) examinations were performed with standard and high-resolution US equipment with linear-array configuration. The nor...

journal_title：Radiology

authors： Graif M,Seton A,Nerubai J,Horoszowski H,Itzchak Y

更新日期：1991-11-01 00:00:00

abstract：:The normal anatomy of the larynx and base of the tongue as seen on nuclear magnetic resonance (NMR) images was studied. Scans of normal volunteers were obtained using a 3.5 kilogauss (0.35 T) superconductive magnet and a 3.0 kilogauss (0.3 T) permanent magnet. The NMR images were compared with images obtained by CT an...

journal_title：Radiology

authors： Lufkin RB,Larsson SG,Hanafee WN

更新日期：1983-07-01 00:00:00

abstract：PURPOSE:To prospectively assess aortic dimensions, aortic elasticity, aortic valve competence, and left ventricular (LV) systolic function in patients after the arterial switch operation (ASO) by using magnetic resonance (MR) imaging. MATERIALS AND METHODS:Informed consent was obtained from all participants for this l...

journal_title：Radiology

authors： Grotenhuis HB,Ottenkamp J,Fontein D,Vliegen HW,Westenberg JJ,Kroft LJ,de Roos A

更新日期：2008-12-01 00:00:00

abstract：PURPOSE:To compare conventional and Doppler ultrasound (US) with clinical and biopsy parameters used to assess disease activity and outcome in lupus nephritis and to assess the predictive value of US. MATERIALS AND METHODS:Thirty-four patients with lupus nephritis prospectively underwent laboratory and US analysis at ...

journal_title：Radiology

authors： Platt JF,Rubin JM,Ellis JH

更新日期：1997-04-01 00:00:00

abstract：:Californium 252 low dose rate intracavitary neutron implants combined with conventional external beam therapy for advanced pelvic tumors produced better local response than 137Cs in pelvic brachytherapy. Greater tumor regression was achieved by applying 252Cf while the maximum amount of tumor was present preceding or ...

journal_title：Radiology

authors： Maruyama Y

更新日期：1979-11-01 00:00:00

abstract：:Online supplemental material is available for this article. ...

journal_title：Radiology

authors： Kressel HY,Levine D

更新日期：2015-01-01 00:00:00

abstract：:Eighteen patients with cervical radiculopathy were entered into a prospective study to compare the accuracy of surface coil magnetic resonance (MR) imaging with that of metrizamide myelography and computed tomography (CT) with metrizamide. All MR studies included tailored axial and oblique images as well as routine sa...

journal_title：Radiology

authors： Modic MT,Masaryk TJ,Ross JS,Mulopulos GP,Bundschuh CV,Bohlman H

更新日期：1987-04-01 00:00:00

abstract：PURPOSE:To create a model to estimate glomerular filtration rate (GFR) in healthy individuals, such as renal transplant donors, by using renal volume measurements derived from multidetector computed tomographic (CT) scans, serum creatinine level, height, weight, race, and age, and to compare the performance of this kid...

journal_title：Radiology

authors： Herts BR,Sharma N,Lieber M,Freire M,Goldfarb DA,Poggio ED

更新日期：2009-07-01 00:00:00

abstract：:Sixteen patients with cirrhosis of the liver underwent cranial magnetic resonance (MR) imaging and transarterial portography to evaluate the relationship between basal ganglia lesions and portal-systemic collateral vessels. No neuropsychiatric disturbance was observed in any of the patients at the time of the MR exami...

journal_title：Radiology

authors： Inoue E,Hori S,Narumi Y,Fujita M,Kuriyama K,Kadota T,Kuroda C

更新日期：1991-05-01 00:00:00

abstract：:A distinctive type of artifactual extravascular assignment of color was identified in 49 color Doppler ultrasound (US) examinations in 43 patients. This artifact appeared as a random localized mixture of red and blue assigned to perivascular soft tissues; the artifact varied with the cardiac cycle, being most prominen...

journal_title：Radiology

authors： Middleton WD,Erickson S,Melson GL

更新日期：1989-06-01 00:00:00

abstract：:Six radiologists, acting as radiograph reviewers, used two different consultation protocols to differentiate among 292 ambiguous chest radiographic findings: 120 simulated nodules and 172 normal findings (previous readers' false-positive reports of nodules). The nonsearch protocol identified each finding (by film loca...

journal_title：Radiology

authors： Swensson RG,Theodore GH

更新日期：1990-12-01 00:00:00

abstract：:The ability of film readers to detect a nodular target abnormality with the peripheral vision was studied using a gray structureless background, chest radiographs with a bilateral pneumothorax and chest radiographs with pulmonary vasculature. Peripheral detection of the nodular abnormality was profoundly decreased by ...

journal_title：Radiology

authors： Kundel HL

更新日期：1975-02-01 00:00:00

abstract：PURPOSE:To evaluate multi- and single-detector row computed tomographic (CT) depiction of anatomic landmarks of temporal bone. MATERIALS AND METHODS:Institutional review board approval and written informed consent were obtained. In 50 temporal bones, transverse and coronal single-detector row CT images were compared w...

journal_title：Radiology

authors： Jäger L,Bonell H,Liebl M,Srivastav S,Arbusow V,Hempel M,Reiser M

更新日期：2005-04-01 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：:In three patients with histologically proved cavernous hemangiomas of the spinal cord, magnetic resonance (MR) imaging was superior to myelography, delayed computed tomography (CT) myelography, and contrast-enhanced CT in depicting the lesion. The presence of mixed subacute and chronic hemorrhage, suggested by mixed h...

journal_title：Radiology

authors： Fontaine S,Melanson D,Cosgrove R,Bertrand G

更新日期：1988-03-01 00:00:00

abstract：:The variety of cervical lymphadenectomy and neck reconstructive procedures that have been developed in the past 20 years has led to confusion about nomenclature in the literature. In addition, some of these operations result in gross alteration of the normal anatomy. The authors review the present classification syste...

journal_title：Radiology

authors： Som PM,Urken ML,Biller H,Lidov M

更新日期：1993-06-01 00:00:00