Abstract:
:A quality control program for mammography units was carried out, based on objective tests of image quality and dose. Results are reported for 31 units, including correlation between various parameters. Satisfactory results were obtained in the case of 21 installations; for the other 10, comparison between measured quality parameters and those of the reference system suggested ways in which quality might be improved.
journal_name
Radiologyjournal_title
Radiologyauthors
Hessler C,Depeursinge C,Grecescu M,Pochon Y,Raimondi S,Valley JFdoi
10.1148/radiology.156.1.4001410subject
Has Abstractpub_date
1985-07-01 00:00:00pages
221-5issue
1eissn
0033-8419issn
1527-1315journal_volume
156pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract:PURPOSE:To clarify the angiographic findings of the posterior circulation in patients with moyamoya disease. MATERIALS AND METHODS:Seventy-six patients with idiopathic moyamoya disease were studied with conventional angiography. The angiographic findings were reviewed for steno-occlusive lesions, collateral vessels, a...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.197.1.7568830
更新日期:1995-10-01 00:00:00
abstract::The relationship between patient waiting time and capacity and utilization is quantified. By deciding upon the average acceptable and maximum allowable waiting times, the required capacity and resulting utilization rate are fixed. The data needed for analysis include waiting time, patient volume, time required for spe...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/130.3.637
更新日期:1979-03-01 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
pub_type: 杂志文章
doi:10.1148/radiology.162.1.3786760
更新日期:1987-01-01 00:00:00
abstract::Duplication of intrahepatic venous channels was observed in 9 of 13 children with congenital hepatic fibrosis and portal hypertension. Portal hypertension due to other causes was not associated with venous duplication. This anomaly may be a distinctive feature of congenital hepatic fibrosis with portal hypertension. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/122.2.427
更新日期:1977-02-01 00:00:00
abstract::Vascular anomalies of the umbilical cord and fetus were evaluated with ultrasound in 11 fetuses. The anomalies included true knot of the cord (n = 1), umbilical vein varix (n = 1), persistent right umbilical vein (n = 1), and unilateral hypertrophy of the iliac artery in cases of a single umbilical artery (n = 8). One...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.173.2.2678250
更新日期:1989-11-01 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
pub_type: 杂志文章,评审
doi:10.1148/radiol.12102394
更新日期:2012-06-01 00:00:00
abstract:PURPOSE:To evaluate use of the transjugular intrahepatic portosystemic shunt (TIPS) as a nonsurgical approach for the management of Budd-Chiari syndrome (BCS). MATERIALS AND METHODS:Twelve patients with fulminant (n = 2), subacute (n = 5), or chronic (n = 5) BCS underwent TIPS placement. Hepatic venous obstruction was...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.197.3.7480760
更新日期:1995-12-01 00:00:00
abstract::The radiological features of absence of a pulmonary artery are often characteristic enough to allow a diagnosis based on the plain radiograph. They include a small hemithorax, ipsilateral displacement of the mediastinum, absence of the corresponding pulmonary artery, and reticular parenchymal densities, generally attr...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/132.2.281
更新日期:1979-08-01 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
pub_type: 杂志文章
doi:10.1148/126.1.29
更新日期:1978-01-01 00:00:00
abstract::Computed tomography (CT) of the spine after intravenous contrast enhancement has been used in 4 patients with arteriovenous malformation (AVM) of the spinal cord. The enlarged, contrast-filled vessels constituting the malformation are visualized on CT scans. There was good correspondence between CT and selective angio...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/123.2.351
更新日期:1977-05-01 00:00:00
abstract::Ultrasound (US) of the liver surface with a high-frequency, small-parts, short-focused probe has been proposed as a method of diagnosing cirrhosis. US of the liver was performed in 50 consecutive patients undergoing diagnostic liver biopsy to assess the clinical usefulness of this noninvasive procedure in diagnosing h...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.185.1.1523310
更新日期:1992-10-01 00:00:00
abstract:PURPOSE:To assess the diagnostic performance of various Doppler ultrasonographic (US) vascularity measures in conjunction with grayscale (GS) criteria in differentiating benign from malignant breast masses, by using histologic findings as the reference standard. MATERIALS AND METHODS:Institutional Review Board and HIP...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2492060888
更新日期:2008-11-01 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
pub_type: 杂志文章
doi:10.1148/radiology.176.1.2162070
更新日期:1990-07-01 00:00:00
abstract::Computed tomography (CT) is the modality of choice for evaluation of pancreatic disease. In this prospective study, images obtained with spiral CT, which enables examination of a region of the body in a single breath-hold, were compared with those obtained by means of dynamic CT with automatic table incrementation in ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.183.3.1584940
更新日期:1992-06-01 00:00:00
abstract:PURPOSE:To prospectively develop and evaluate the accuracy of a duplex Doppler ultrasonographic (US) index for predicting the presence or absence of esophageal varices in patients with compensated cirrhosis (Child-Pugh class A) by using endoscopy as the reference standard. MATERIALS AND METHODS:The study had instituti...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2481071257
更新日期:2008-07-01 00:00:00
abstract::The clinical and radiologic findings in 30 patients who sustained injuries to the temporomandibular joint (TMJ) were retrospectively analyzed. Imaging consisted of variable combinations of radiography, tomography, two-compartment arthrography, computed tomography, and magnetic resonance imaging and was performed 2 day...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.173.1.2781010
更新日期:1989-10-01 00:00:00
abstract:PURPOSE:To investigate the histopathologic and dynamic magnetic resonance (MR) imaging correlates of intrinsic susceptibility-weighted (ISW) MR imaging in patients with primary human breast adenocarcinoma and to assess the relationship between baseline transverse relaxation rate (R2*) and T2* relaxivity change (ΔR2*) a...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.10100421
更新日期:2010-12-01 00:00:00
abstract::Pleural disease is an unusual manifestation of childhood leukemia. Three cases are presented which illustrate a definite association between leukemia and pleural thickening. In two patients, there was bilateral diffuse pleural thickening and, in the other, there were unilateral pleural-based masses. Pleural disease ma...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.138.2.6935700
更新日期:1981-02-01 00:00:00
abstract::Recombinant human tissue-type plasminogen activator (rt-PA) was infused intraarterially at 0.1 mg/kg/h for 1-6 1/2 hours in 25 patients with lower extremity thromboembolic occlusions (13 thrombosed arteries, 12 thrombosed bypass grafts). Occlusion duration ranged from 1 hour to 21 days. Thrombolysis occurred in 23 of ...
journal_title:Radiology
pub_type: 临床试验,杂志文章
doi:10.1148/radiology.160.1.3086930
更新日期:1986-07-01 00:00:00
abstract::In hepatic tumors seen in children, treatment and prognosis differ from tumor to tumor and thus accurate determination of their extent and characteristics is important. Evaluation by gray scale ultrasonography, radionuclide imaging and angiography has produced definable characteristics for the various tumor types and ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/124.2.451
更新日期:1977-08-01 00:00:00
abstract:PURPOSE:To determine whether the addition of color Doppler ultrasonography (US) to gray-scale US can help diagnose appendicitis in children. MATERIALS AND METHODS:One hundred children with suspected appendicitis were evaluated with gray-scale and color Doppler US scanning. Color Doppler US scans were considered positi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.191.2.8153340
更新日期:1994-05-01 00:00:00
abstract::Background Relevance of antiangiogenic treatment with bevacizumab in patients with glioblastoma is controversial because progression-free survival benefit did not translate into an overall survival (OS) benefit in randomized phase III trials. Purpose To perform longitudinal characterization of intratumoral angiogenesi...
journal_title:Radiology
pub_type: 杂志文章,随机对照试验
doi:10.1148/radiol.2020200978
更新日期:2020-10-01 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
pub_type: 杂志文章
doi:10.1148/radiology.153.3.6387790
更新日期:1984-12-01 00:00:00
abstract::A systems approach was employed to improve results of the single-contrast barium enema examination for detection of colonic polyps. Improvements were made in each of the following areas: radiographic-fluoroscopic equipment, fluoroscopic-television images, screen-film combinations, barium suspensions, examination techn...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.164.2.3602370
更新日期:1987-08-01 00:00:00
abstract::The computed tomographic scans of 200 consecutive patients with Crohn disease were studied to determine the frequency and patterns of perirectal and perianal involvement. In 163 patients (82%) abnormalities in the perirectal-perianal region were demonstrated; findings included inflammation of fat planes (73%), bowel w...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.167.2.3357940
更新日期:1988-05-01 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
pub_type: 杂志文章
doi:10.1148/radiology.191.2.8153310
更新日期:1994-05-01 00:00:00
abstract::The use of specialized coils to improve signal-to-noise ratios in magnetic resonance (MR) imaging is an important innovation. The role of surface coils has not yet been well defined, but it seems likely that they will be routinely used for clinical imaging of the orbit, neck, and spine. Surface coils have important li...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.157.2.4048470
更新日期:1985-11-01 00:00:00
abstract::Doppler sonography and magnetic resonance (MR) angiography were prospectively used in combination as a substitute for conventional angiography in 24 consecutive patients likely to undergo carotid endarterectomy. Of 19 patients (20 lesions) who underwent carotid endarterectomy, 18 had not undergone preoperative angiogr...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.186.2.8421730
更新日期:1993-02-01 00:00:00
abstract::A percutaneous technique is described for the introduction of Kimray-Greenfield filters into the vena cava through either the internal jugular or femoral approach. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.151.2.6709930
更新日期:1984-05-01 00:00:00
abstract::In a series of 30 patients, barium enema examination of the colon was performed via a remote controlled air and contrast media inflator. With this apparatus, introduction and elimination of air and barium into the colon can be accomplished at a freely adjustable rate of injection by remote control. Fluoroscopy time is...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/125.2.533
更新日期:1977-11-01 00:00:00