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 intermixed with anechoic zones; (b) hyperechoic masses with central fluid-filled zones; (c) homogeneous hyperechoic masses; and (d) homogeneous hypoechoic masses. Three of 6 patients with hepatic masses were totally anechoic alongside other more typical metastatic patterns. The presence of a large mass with sonographic signs of necrosis should strongly suggest the possibility of sarcoma. The differential diagnosis is discussed.
journal_name
Radiologyjournal_title
Radiologyauthors
Bree RL,Green Bdoi
10.1148/128.1.193subject
Has Abstractpub_date
1978-07-01 00:00:00pages
193-7issue
1eissn
0033-8419issn
1527-1315journal_volume
128pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::To evaluate the ability of ultrasonography (US) to determine venous tumor extension, we studied 120 consecutive patients with renal neoplasms. The incidence of renal vein involvement in this group was 18%; caval tumor extension occurred in 11% of the patients. Real-time US clearly visualized the entire retrohepatic in...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.156.2.3892580
更新日期:1985-08-01 00:00:00
abstract:PURPOSE:To determine whether excess prostate-specific antigen (PSA) improves the accuracy of predicting positive biopsy results. MATERIALS AND METHODS:Results of prostate biopsy in 130 consecutive patients were correlated with transrectal ultrasound (TRUS) findings, digital rectal examination results, serum PSA level,...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.199.1.8633140
更新日期:1996-04-01 00:00:00
abstract:PURPOSE:To determine the value of parenchymal findings at contrast material-enhanced spiral computed tomography (CT) in patients suspected to have pulmonary embolism (PE). MATERIALS AND METHODS:Eighty-eight patients suspected to have PE underwent contrast-enhanced spiral CT and ventilation-perfusion scintigraphy. Conc...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.207.3.9609900
更新日期:1998-06-01 00:00:00
abstract::A previous study determined the normal values and upper limits of liver size, as measured by the longitudinal and sagittal diameters in the midclavicular line and the midline. The present study was performed to determine which of the four sonographic diameters best differentiates between patients who have liver diseas...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.153.2.6385110
更新日期:1984-11-01 00:00:00
abstract::Computed tomographic (CT) scans of 24 bronchopulmonary sequestrations in 23 patients were reviewed. Seventeen sequestrations were diagnosed at surgery, three at angiography, and four on the basis of radiographic or CT findings combined with appropriate history. Sixteen sequestrations were intralobar, and eight were ex...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.176.2.2367650
更新日期:1990-08-01 00:00:00
abstract::In a phantom and in 37 patients, a simple laser guidance system for computed tomography (CT)-guided procedures used the software program of the CT scanner and a laser beam mounted on the CT gantry without need for additional software or components. The skin entry point and angulation of the target path were determined...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.194.1.7997570
更新日期:1995-01-01 00:00:00
abstract::Fifteen cases of smooth muscle tumor of the alimentary tract were collected for analysis from several institutions. The findings showed that angiography is the best method available for diagnosis and evaluation of such tumors but is unable to differentiate benign from malignant lesions unless arterial invasion is dete...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.139.2.7220880
更新日期:1981-05-01 00:00:00
abstract:PURPOSE:To describe the placement of a nasolacrimal polyurethane stent with a new introducer set and hook. MATERIALS AND METHODS:The authors designed a soft polyurethane stent, an introducer that does not require balloon dilation, and a hook that can remove a ball-tipped guide wire from the inferior nasal meatus under...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.194.1.7997560
更新日期:1995-01-01 00:00:00
abstract::The rationale for prebiopsy and preoperative irradiation in a multimodal approach to treatment of osteosarcoma is presented. Six patients with osteosarcoma underwent preoperative irradiation, amputation, and elective chemotherapy. Five of these also received prebiopsy irradiation: three survive without metastases at 2...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/125.2.497
更新日期:1977-11-01 00:00:00
abstract:PURPOSE:To assess syringe use among neuroangiographers and evaluate air emboli produced with glass and plastic syringes. MATERIALS AND METHODS:Questionnaires on syringes use were sent to 100 members of the American Society of Neuroradiology (ASNR). An in vitro system counted emboli during injections of contrast materi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.191.3.8184070
更新日期:1994-06-01 00:00:00
abstract::The appearance of testicular prostheses on magnetic resonance (MR) images was studied in six patients with seven silicone implants: two with a fluid consistency and five that were solid. On T1-weighted images, both types of prosthesis demonstrated homogeneous low signal intensity; on T2-weighted images, the fluid impl...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.173.2.2798890
更新日期:1989-11-01 00:00:00
abstract::Magnetic resonance (MR) imaging was performed using a 1.5-T magnet on eight immature swine knees with surgically produced vertical and horizontal meniscal tears. Three radiologists, interpreting the images independently, detected all tears. Tears in the middle portion of the meniscus were best seen on sagittal views, ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.158.3.3945740
更新日期:1986-03-01 00:00:00
abstract::The authors investigated the spectrum of radiologic findings in a large series (n = 47) of patients seropositive to human immunodeficiency virus (HIV) 1 and with pathologically proved progressive multifocal leukoencephalopathy, to determine the characteristic imaging pattern of the disease. Thirty-six computed tomogra...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.187.1.8451420
更新日期:1993-04-01 00:00:00
abstract::A hybrid subtraction method to reduce the motion sensitivity of temporal subtraction for intravenous arteriography is described. Hybrid subtraction uses dual-energy scanned projection radiography to provide pre- and post-contrast images with the soft tissues subtracted. These pre- and post-contrast soft-tissue-cancell...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.141.3.7029620
更新日期:1981-12-01 00:00:00
abstract:PURPOSE:To evaluate positron emission tomography (PET) with fluorine-18-labeled fluorodeoxyglucose (FDG) for detection of pancreatic cancer compared with computed tomography (CT) and ultrasonography (US). MATERIALS AND METHODS:Forty patients with suspected pancreatic cancer underwent static PET after intravenous injec...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.192.1.8208970
更新日期:1994-07-01 00:00:00
abstract:PURPOSE:To compare the stress experienced by women who had false-positive screening mammograms and had undergone immediate on-site diagnostic imaging evaluation with that experienced by those who had been recalled for subsequent imaging. MATERIALS AND METHODS:A retrospective survey was mailed to women with false-posit...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.218.1.r01ja35247
更新日期:2001-01-01 00:00:00
abstract:PURPOSE:To classify lesions initially considered nonmalignant at large-needle core biopsy that were subsequently surgically excised or sampled at repeat biopsy. MATERIALS AND METHODS:From August 1, 1991, to December 31, 1996, 1,032 breast abnormalities (214 malignant and 818 nonmalignant lesions) were sampled at large...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.206.3.9494490
更新日期:1998-03-01 00:00:00
abstract::There are multiple causes for hematuria in infants and children. When hematuria is accompanied by dysuria, however, one should focus attention on the lower urinary tract. Although ultrasound (US) is a well-established method for assessing the kidneys and bladder, little attention has been focused on its use for evalua...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.185.3.1438760
更新日期:1992-12-01 00:00:00
abstract:PURPOSE:To evaluate oxygen-enhanced T1-mapping magnetic resonance (MR) imaging as a noninvasive method for visualization and quantification of regional inflammation after segmental allergen challenge in asthmatic patients compared with control subjects. MATERIALS AND METHODS:After institutional review board approval, ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.14132607
更新日期:2015-01-01 00:00:00
abstract::A gradient intensifying screen composed of rare earth phosphors and calcium tungstate was developed. It provides uniform film density when there is a graded increase in subject density. Use of this screen for scoliosis radiography provides an improved image and reduces radiation exposure. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.135.1.7360970
更新日期:1980-04-01 00:00:00
abstract:PURPOSE:To determine whether spinal cord atrophy differs among disease subtypes in multiple sclerosis (MS) and whether it offers diagnostic and clinical correlative information beyond that provided by other magnetic resonance (MR) imaging markers. MATERIALS AND METHODS:The institutional review board approved the study...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.13122566
更新日期:2013-11-01 00:00:00
abstract:PURPOSE:To determine whether vascular, ischemic, and inflammatory causes of bowel wall thickening in children can be differentiated at gray-scale and color Doppler ultrasonography (US). MATERIALS AND METHODS:Thirty-seven children with acute bowel disease underwent graded compression US. Findings of bowel wall thicknes...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.203.3.9169680
更新日期:1997-06-01 00:00:00
abstract:PURPOSE:To assess brachial plexus magnetic resonance (MR) imaging features and limb-girdle muscle abnormalities as signs of muscle denervation in patients with amyotrophic lateral sclerosis (ALS). MATERIALS AND METHODS:This study was approved by the local ethical committees on human studies, and written informed conse...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2015150559
更新日期:2016-05-01 00:00:00
abstract::Intracranial tuberculoma was studied by computed tomography (CT) in eight patients. Upon contrast enhancement, two patterns were seen: (a) a small enhancing ring with a central punctate lucent area, and (b) nodular enhancement. The various CT findings are correlated with the clinical features and with the appearance o...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.138.1.7455100
更新日期:1981-01-01 00:00:00
abstract:PURPOSE:To assess whether radiologic technologists could be successfully trained to identify abnormalities on mammograms. MATERIALS AND METHODS:Eight radiologic technologists from two different institutions took a pretest, underwent an 8-hour training course followed by a period of preceptorship, and then took a postt...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.194.1.7997550
更新日期:1995-01-01 00:00:00
abstract:PURPOSE:To investigate how changes in kilovolt peak and milliampere second settings, and patient weight affect transmitted x-ray energy fluence and the image contrast-to-noise ratio (CNR) at abdominal computed tomography (CT). MATERIALS AND METHODS:Cylinders of water were used as patient models, and x-ray spectra, inc...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.217.2.r00nv35430
更新日期:2000-11-01 00:00:00
abstract::To determine and quantify the major sources of anxiety for patients undergoing magnetic resonance (MR) imaging and to suggest means by which to eliminate or diminish their negative effects, the authors studied anxiety in 46 subjects. Of these, 20 randomly selected subjects who successfully completed the examination pa...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.170.2.2911670
更新日期:1989-02-01 00:00:00
abstract:PURPOSE:Magnetic resonance (MR) images were correlated with results of fine-needle aspiration (FNA) to determine the role of MR imaging in evaluating hepatic neoplasms treated with percutaneous ethanol ablation therapy (PEAT). MATERIALS AND METHODS:Contrast material-enhanced and unenhanced MR images were obtained in 1...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.189.1.7690490
更新日期:1993-10-01 00:00:00
abstract::From 1981 to 1986, 23 patients (24 hips) were treated with single-dose irradiation after hip surgery in an attempt to prevent heterotopic bone formation. All patients were at high risk for the development of heterotopic ossification because of the presence of heterotopic bone in either hip secondary to trauma or previ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.168.3.3136510
更新日期:1988-09-01 00:00:00
abstract::This introduction to biostatistics and measurement is the first in a series of articles designed to provide Radiology readers with a basic understanding of statistical concepts. Although most readers of the radiology literature know that application of study results to their practice requires an understanding of stati...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2252010933
更新日期:2002-11-01 00:00:00