How useful is the alpha angle for discriminating between symptomatic patients with cam-type femoroacetabular impingement and asymptomatic volunteers?

abstract：:High-resolution, real-time ultrasonography (US) with graded compression was used to evaluate 90 patients with clinically suspected acute appendicitis. US visualization of a noncompressible appendix was the primary criterion for a diagnosis of acute appendicitis. The overall sensitivity was 89%, the specificity was 95%...

journal_title：Radiology

authors： Jeffrey RB Jr,Laing FC,Lewis FR

更新日期：1987-04-01 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：:In a comparison of conventional and magnetic resonance (MR) angiography of the lower extremities, MR imaging was performed with extremity and body coils and a unilateral six-coil telescopic phased-array coil. In one of seven volunteers, average signal-to-noise ratio was 140% higher with the latter (p < .01), only thre...

journal_title：Radiology

authors： Kojima KY,Szumowski J,Sheley RC,Quinn SF

更新日期：1995-09-01 00:00:00

abstract：:Acute clinically significant hemobilia occurred after percutaneous transhepatic biliary drainage. Investigations revealed a fistula between a peripheral bile duct and a branch of the portal vein. Hemostasis was obtained by balloon tamponade at the site of the fistula. ...

journal_title：Radiology

authors： Sniderman KW,Morse SS,Rapoport S,Ross GR

更新日期：1985-03-01 00:00:00

abstract：:The authors sought to render projection magnetic resonance (MR) angiograms depicting a substantial length of human coronary arteries from sequential breath-hold two-dimensional MR images. Tomographic images of the right and left anterior descending coronary arteries were collected with use of a segmented gradient-reca...

journal_title：Radiology

authors： Edelman RR,Manning WJ,Pearlman J,Li W

更新日期：1993-06-01 00:00:00

abstract：:Presacral abscesses developed in two men (aged 59 and 76 years) after abdominoperineal resection. Computed tomography was performed to demonstrate the distance from the abscess to the perineum and the distance of the abscess anterior to the sacrum. Then, lateral and anteroposterior fluoroscopy was performed to guide t...

journal_title：Radiology

authors： Michalson AE,Brown BP,Warnock NG,Simonson TM

更新日期：1994-02-01 00:00:00

abstract：PURPOSE:To examine the performance and reproducibility of a commercially available computer-aided detection (CAD) system with a set of mammograms obtained in 100 patients who had undergone biopsy after positive findings at mammography. MATERIALS AND METHODS:One hundred positive mammographic examinations (four views ea...

journal_title：Radiology

authors： Zheng B,Hardesty LA,Poller WR,Sumkin JH,Golla S

更新日期：2003-07-01 00:00:00

abstract：:Background Previous studies have suggested that texture analysis is a promising tool in the diagnosis, characterization, and assessment of treatment response in various cancer types. Therefore, application of texture analysis may be helpful for early prediction of pathologic response in breast cancer. Purpose To inves...

journal_title：Radiology

authors： Eun NL,Kang D,Son EJ,Park JS,Youk JH,Kim JA,Gweon HM

更新日期：2020-01-01 00:00:00

abstract：:The use of vasopressin infusion or arterial embolization in the treatment of 87 patients with gastrointestinal hemorrhage is reviewed. A bleeding point was identified angiographically in 46 patients (53%), with a higher success rate in those with upper gastrointestinal hemorrhage (63%) than in those with lower (39%) g...

journal_title：Radiology

authors： Rahn NH 3rd,Tishler JM,Han SY,Russinovich NA

更新日期：1982-05-01 00:00:00

abstract：:Phantom and in vitro studies were performed to evaluate the potential application of digital circular tomosynthesis in imaging of the breast and upper cervical spine. A prototype volumetric x-ray system was used to image a mammographic phantom, a fresh mastectomy specimen, and a head phantom containing the upper cervi...

journal_title：Radiology

authors： Stevens GM,Birdwell RL,Beaulieu CF,Ikeda DM,Pelc NJ

更新日期：2003-08-01 00:00:00

abstract：:Pulmonary arteriography is an invasive but relatively safe diagnostic procedure. It is generally believed that the presence of pulmonary hypertension is one risk factor that increases the likelihood of a major complication. To assess the magnitude of risk, the reports on 1,434 patients who underwent pulmonary arteriog...

journal_title：Radiology

authors： Perlmutt LM,Braun SD,Newman GE,Oke EJ,Dunnick NR

更新日期：1987-01-01 00:00:00

abstract：PURPOSE:To compare the performance of pelvic phased-array (PPA) coils and integrated endorectal PPA coils in evaluation of local extent of prostate cancer. MATERIALS AND METHODS:Seventy-one men underwent magnetic resonance (MR) imaging within 3 weeks of radical prostatectomy. MR findings of tumor, extracapsular extens...

journal_title：Radiology

authors： Hricak H,White S,Vigneron D,Kurhanewicz J,Kosco A,Levin D,Weiss J,Narayan P,Carroll PR

更新日期：1994-12-01 00:00:00

abstract：:When fast, nondynamic scanning techniques are used in combination with adequate intravenous injection of contrast material, good-quality images of the pulmonary artery (PA) can be obtained with routine computed tomography (CT). The purpose of this study was to evaluate PA filling defects detected on these CT scans. Tw...

journal_title：Radiology

authors： Verschakelen JA,Vanwijck E,Bogaert J,Baert AL

更新日期：1993-09-01 00:00:00

abstract：:A case of bilateral clefts in the pedicles of the L1 vertebra, diagnosed by computed tomography, is presented. The differentiation from other clefts located laterally in the neural arch is briefly summarized, and the possible origin of this entity is discussed. It is improbable that the clefts represent persistent neu...

journal_title：Radiology

authors： Johansen JG,McCarty DJ,Haughton VM

更新日期：1983-08-01 00:00:00

abstract：PURPOSE:Evaluate effect of prostatic irradiation on erectile function. MATERIALS AND METHODS:Forty-seven male adult rats were divided into three groups according to a single radiation dose to the prostate: control (no irradiation) (n = 15), 1,000 cGy (n = 15), and 2,000 cGy (n = 17). Five months after irradiation, rat...

journal_title：Radiology

authors： Carrier S,Hricak H,Lee SS,Baba K,Morgan DM,Nunes L,Ross GY,Phillips TL,Lue TF

更新日期：1995-04-01 00:00:00

abstract：:Ioglucomide, a new iodinated nonionic contrast medium directed primarily toward myelographic use, was subjected to an extensive toxicological examination in animals. In the majority of studies, ioglucomide was compared directly with metrizamide. In some respects, including freedom from production of arachnoiditis, iog...

journal_title：Radiology

authors： Hopkins RM,Adams MD,Lau DH,Creighton JM,Hoey GB

更新日期：1981-09-01 00:00:00

abstract：PURPOSE:To evaluate the sensitivity and specificity of biphasic computed tomography (CT) with mesenteric CT angiography in the diagnosis of acute mesenteric ischemia (AMI). MATERIALS AND METHODS:Sixty-two patients with clinically suspected AMI underwent prospective imaging with biphasic multi-detector row CT. Mesenter...

journal_title：Radiology

authors： Kirkpatrick ID,Kroeker MA,Greenberg HM

更新日期：2003-10-01 00:00:00

abstract：:The authors perform intravenous digital angiography of the abdomen with the patient in a prone position. As a result, gas is reduced in the transverse colon and small bowel and vascular detail in the image is not obscured. ...

journal_title：Radiology

authors： Seigel RS,Williams AG

更新日期：1983-07-01 00:00:00

abstract：PURPOSE:To compare areas of contrast material enhancement in the prostate at ultrasonography (US) with whole-mount radical prostatectomy specimens to determine if the use of contrast material improves the detection rate of prostate cancer. MATERIALS AND METHODS:Transrectal US was performed in 12 subjects with cancer o...

journal_title：Radiology

authors： Halpern EJ,McCue PA,Aksnes AK,Hagen EK,Frauscher F,Gomella LG

更新日期：2002-02-01 00:00:00

abstract：PURPOSE:To determine the usefulness of sonographically obtained resistive indexes (RIs) in the diagnosis of pancreas allograft rejection. MATERIALS AND METHODS:Findings were studied from 78 transduodenal pancreas allograft biopsies that were ultrasound-guided and cystoscopically directed. The 78 biopsies included 40 t...

journal_title：Radiology

authors： Nelson NL,Largen PS,Stratta RJ,Taylor RJ,Grune MT,Hapke MR,Radio SJ

更新日期：1996-07-01 00:00:00

abstract：PURPOSE:To evaluate fluorine 18 ((18)F) dihydroxyphenylalanine (DOPA) whole-body positron emission tomography (PET) as a biochemical imaging approach for detection of pheochromocytomas. MATERIALS AND METHODS:(18)F DOPA PET and magnetic resonance (MR) imaging were performed in 14 consecutive patients suspected of havin...

journal_title：Radiology

authors： Hoegerle S,Nitzsche E,Altehoefer C,Ghanem N,Manz T,Brink I,Reincke M,Moser E,Neumann HP

更新日期：2002-02-01 00:00:00

abstract：:Thirty-four episodes of pyogenic pulmonary infection in 30 patients infected with human immunodeficiency virus (HIV) and 30 episodes of Pneumocystis carinii pneumonia (PCP) in 30 AIDS patients were reviewed to determine if the radiologic features were more helpful than clinical and laboratory findings in the different...

journal_title：Radiology

authors： Amorosa JK,Nahass RG,Nosher JL,Gocke DJ

更新日期：1990-06-01 00:00:00

abstract：:The year 2000 computer problem arises from a long-standing and often-duplicated computer programming error. Affected programs use only two digits to represent years, which may lead to a variety of computer malfunctions and data errors related to crossing from 1999 (99) to 2000 (00), at which point computers may interp...

journal_title：Radiology

authors： Berland LL

更新日期：1999-01-01 00:00:00

abstract：:The plain chest film may be critical in deciding whether a seriously injured patient should undergo aortography in order to exclude traumatic aortic rupture. The roentgen findings suggestive of aortic transection reflect the presence of mediastinal bleeding. A left apical extrapleural cap is frequently seen in these p...

journal_title：Radiology

authors： Simeone JF,Minagi H,Putman CE

更新日期：1975-11-01 00:00:00

abstract：:While invasive imaging techniques, especially selective conventional coronary angiography, will remain vital to planning and guiding catheter-based and surgical treatment of significantly stenotic coronary lesions, the comprehensive and serial assessment of asymptomatic or minimally symptomatic stages of coronary arte...

journal_title：Radiology

authors： Schoenhagen P,Halliburton SS,Stillman AE,Kuzmiak SA,Nissen SE,Tuzcu EM,White RD

更新日期：2004-07-01 00:00:00

abstract：PURPOSE:To compare superior mesenteric artery (SMA) blood flow in healthy volunteers and patients with stenoses in the fasting state and after food intake by using phase-contrast (PC) cine magnetic resonance (MR) imaging. MATERIALS AND METHODS:Ten healthy subjects, four asymptomatic patients (three with 50% stenosis, ...

journal_title：Radiology

authors： Li KC,Whitney WS,McDonnell CH,Fredrickson JO,Pelc NJ,Dalman RL,Jeffrey RB Jr

更新日期：1994-01-01 00:00:00

abstract：PURPOSE:To retrospectively determine the frequency and severity of various abnormal laboratory test values following percutaneous cryoablation of liver tumors and to estimate the correlation between laboratory test values and tumor and ablation volumes. MATERIALS AND METHODS:This HIPAA-compliant study had institutiona...

journal_title：Radiology

authors： Nair RT,Silverman SG,Tuncali K,Obuchowski NA,vanSonnenberg E,Shankar S

更新日期：2008-07-01 00:00:00

abstract：:Forty computed tomography (CT)-assisted aspirations performed with only hand guidance were prospectively compared with 40 performed with a CT body-stereotaxic system. Although there was no statistically significant difference in lesion size and path length between the two groups, use of stereotaxis compared with hand ...

journal_title：Radiology

authors： Onik G,Cosman ER,Wells TH Jr,Goldberg HI,Moss AA,Costello P,Kane RA,Hoddick WI,Demas B

更新日期：1988-02-01 00:00:00

abstract：:Twenty-three patients with previously treated medulloblastoma had brain scintigrams revealed posterior fossa recurrence in 15 patients and supratentorial metastases in 9; only 1 of the latter was clinically suspected. Two subdural hematomas and one calvarial metastasis were also detected. Comparison with other diagnos...

journal_title：Radiology

authors： Clark EE,Hattner RS

更新日期：1976-06-01 00:00:00

abstract：:The relation of liver fat content to CT number was studied in 20 rabbits (17 experimental, 3 control), where fatty degeneration was produced by carbon tetrachloride (CCl4) ingestion. Liver scanning was performed before and 2--5 days after CCl4 administration.. Changes (decrease) in CT number were compared with triglyc...

journal_title：Radiology

authors： Ducommun JC,Goldberg HI,Korobkin M,Moss AA,Kressel HY

更新日期：1979-02-01 00:00:00