Abstract:
PURPOSE:To identify current patterns and trends of computed tomographic (CT) screening, including geographic data, services provided, facility type, and demographic characteristics. MATERIALS AND METHODS:In March 2003, self-referred body imaging (SRBI) centers were identified by using the Internet. Data involving geographic location, type of facility, services provided, and demographic characteristics were collected. The 2000 U.S. census data were used to compare center locality demographics with national patterns. Descriptive statistics, t tests, and regression analyses were used to evaluate data. Nonstatistical comparisons were made with results obtained from a previously published analysis. RESULTS:The number of SRBI centers totaled 161 (vs 88 in a comparative study in 2001), and centers were distributed across 31 states and Washington, DC (vs 21 in 2001). Racial demographics of center localities more closely resembled national averages in the current study, with equal percentages of whites (76.0% vs 77.1% nationally) and Hispanics (11.5% vs 12.5% nationally). Center localities continued to exhibit greater wealth and levels of education, as reflected by higher income per capita and median household income (P < .05), as well as by higher percentages of people with college and advanced degrees (P < .05). Heart scanning was the most commonly offered service (n = 152, 94%), followed by whole-body scanning (n = 135, 84%), lung scanning (n = 126, 78%), and virtual colonoscopy (n = 88, 55%). Centers in the West were more likely to offer whole-body and organ-specific scanning, compared with centers in other regions (P < .001 for virtual colonoscopy, P < .05 for head scanning). Hospital-based centers were less likely to offer services other than heart scanning (P < .001). CONCLUSION:Compared with results of a prior analysis, SRBI centers have increased and are distributed more widely in areas with a population that more closely resembles national norms. The increased trend to broaden services may suggest possible saturation of the preexisting market.
journal_name
Radiologyjournal_title
Radiologyauthors
Kalish GM,Bhargavan M,Sunshine JH,Forman HPdoi
10.1148/radiol.2332031964subject
Has Abstractpub_date
2004-11-01 00:00:00pages
353-8issue
2eissn
0033-8419issn
1527-1315pii
2332031964journal_volume
233pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract:PURPOSE:To explore the neural correlates of the thalamus by using resting-state functional magnetic resonance (MR) imaging and to investigate whether thalamic resting-state networks (RSNs) are disrupted in patients with mild traumatic brain injury (MTBI). MATERIALS AND METHODS:This HIPAA-compliant study was approved b...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.11110014
更新日期:2011-09-01 00:00:00
abstract:PURPOSE:To compare the clinical effectiveness of a covered nitinol stent with that of a polyurethane stent for treatment of lacrimal system obstructions. MATERIALS AND METHODS:A nitinol stent was knit from a single thread of 0.1-mm nitinol wire in a tubular configuration and was covered by dipping the stent into a pol...
journal_title:Radiology
pub_type: 临床试验,杂志文章
doi:10.1148/radiol.2271011674
更新日期:2003-04-01 00:00:00
abstract:PURPOSE:To evaluate the cochlear modiolus with thin-section magnetic resonance (MR) imaging in healthy subjects and patients with a large endolymphatic duct and sac, and to assess whether the cochlea is normal or abnormal in patients with a large endolymphatic duct and sac. MATERIALS AND METHODS:MR images were obtaine...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.213.3.r99dc05819
更新日期:1999-12-01 00:00:00
abstract:PURPOSE:To determine the computed tomographic (CT) findings in patients with allergic fungal sinusitis. MATERIALS AND METHODS:The authors retrospectively reviewed CT scans and surgical and histopathologic reports in 45 patients (27 male, 18 female; age range, 8-68 years) with allergic fungal sinusitis from multiple in...
journal_title:Radiology
pub_type: 杂志文章,多中心研究
doi:10.1148/radiology.207.2.9577490
更新日期:1998-05-01 00:00:00
abstract:PURPOSE:To document the possible association of segmental tracheomalacia in the thoracic inlet with the combination of a large thymus and normal innominate artery. MATERIALS AND METHODS:Eight infants with symptoms of innominate artery compression of the trachea were studied. The diagnostic approach included observatio...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.190.1.8259390
更新日期:1994-01-01 00:00:00
abstract::An overview of current air-contrast stomach examination techniques is offered: (a) Hampton's technique which does not use distension; (b) the Japanese method which utilizes the relaxant drug Buscopan, good distension, and much patient rotation; (c) a third method in which no drugs are used but more distension is obtai...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/117.3.743
更新日期:1975-12-01 00:00:00
abstract:PURPOSE:To determine if digital chest images could be compressed in a primary interpretation context without perceived loss of fidelity (below the visually lossless threshold) at transilluminated film or cathode ray tube (CRT) display. MATERIALS AND METHODS:One hundred forty-four posteroanterior radiographs were obtai...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2282011998
更新日期:2003-08-01 00:00:00
abstract::The authors report a case of subacute spinal subdural hematoma in a patient with ankylosing spondylitis. Only 18 such cases have been reported in the nonradiological literature. Early diagnosis is imperative in order to minimize neurological sequelae. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/120.1.116
更新日期:1976-07-01 00:00:00
abstract:PURPOSE:To validate coronary sinus flow measurements for quantification of global left ventricular (LV) perfusion by means of velocity-encoded cine (VEC) magnetic resonance (MR) imaging and flow probes. MATERIALS AND METHODS:Measurements of coronary sinus flow were performed in seven dogs by using VEC MR imaging at ba...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.217.2.r00nv10487
更新日期:2000-11-01 00:00:00
abstract:PURPOSE:To determine characteristic features of peripheral cholangiocarcinoma on two-phase spiral computed tomographic (CT) scans. MATERIALS AND METHODS:Thirty-four patients with peripheral cholangiocarcinoma underwent two-phase spiral CT. Hepatic arterial phase and portal venous phase images were obtained 30 and 65 s...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.204.2.9240550
更新日期:1997-08-01 00:00:00
abstract::Shoulder disease is common in the athletic population and may arise as a consequence of a single traumatic episode or multiple repeated events. Associated labroligamentous injuries can result in substantial disability. Specific athletic and occupational activities result in predictable injury patterns. Imaging in gene...
journal_title:Radiology
pub_type: 杂志文章,评审
doi:10.1148/radiol.2015150364
更新日期:2016-02-01 00:00:00
abstract::Stitch granuloma is rarely a consideration in the differential diagnosis of stomach lesions. This report documents the occurrence of a granulomatous mass of gastric origin simulating an intramural tumor. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/127.1.84
更新日期:1978-04-01 00:00:00
abstract::The purpose of this study was to assess the blooming artifacts in ex vivo coronary arteries at multidetector computed tomography (CT) and flat-panel-volume CT by comparing measured areas of calcified plaque with respect to the reference standard of histopathologic findings. Three ex vivo hearts were scanned with multi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2483072003
更新日期:2008-10-01 00:00:00
abstract::Ultrasound examinations were performed on 25 women with augmented breasts using whole-breast water-path scanning. In these patients, ultrasound imaged carcinoma, benign lesions, and fibrous capsule formation; these were confirmed by surgery. In addition, it was noted that certain prostheses appeared to be displaced po...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.146.3.6828690
更新日期:1983-03-01 00:00:00
abstract::The right paratracheal stripe (RPS) is seen on postero-anterior chest radiographs as a thin, water-density stripe between the air column of the trachea and the adjacent right lung. The range of width of the RPS in 1,259 normal subjects was 1 to 4 mm. An RPS width of 5 mm or more is reliable evidence of disease. The di...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/122.2.295
更新日期:1977-02-01 00:00:00
abstract:PURPOSE:To prospectively evaluate the feasibility of magnetic resonance (MR) coronary artery imaging and to define myocardial damage with late-enhancement myocardial MR imaging in children who underwent arterial switch surgery for transposition of the great arteries. MATERIALS AND METHODS:The local research ethics com...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2342032059
更新日期:2005-02-01 00:00:00
abstract:PURPOSE:To investigate and describe the anatomic distribution, imaging features, and pattern of metastatic spread of malignant gastrointestinal stromal tumors (GISTs). MATERIALS AND METHODS:The medical records of all patients at our institution with a histologic diagnosis of GIST were reviewed. Two radiologists with k...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2262011880
更新日期:2003-02-01 00:00:00
abstract::Limited-stage small cell lung cancer is frequently treated with induction combination chemotherapy (ICC), followed by consolidation with thoracic irradiation. It has been suggested that patients who do not have a complete response to ICC are unlikely to have control of occult distant metastasis and consequently have s...
journal_title:Radiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1148/radiology.178.3.1847240
更新日期:1991-03-01 00:00:00
abstract:PURPOSE:To compare the association between neurodevelopmental outcome in neonates with hypoxic-ischemic encephalopathy following perinatal asphyxia and (a) apparent diffusion coefficients (ADCs) in the thalamus and basal ganglia at diffusion-weighted (DW) magnetic resonance (MR) imaging and (b) hydrogen 1 (¹H) MR spect...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.11110213
更新日期:2011-10-01 00:00:00
abstract::An anastomosis between the left renal and left ascending lumbar veins may appear as a mass on CT scans due to a varicosity where the veins separate. Intravenous injection of contrast material reveals the vascular nature of the mass. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.152.2.6739820
更新日期:1984-08-01 00:00:00
abstract::The ability to resolve the fine linear structures of interstitial lung disease is one measure of the limiting performance characteristics of an imaging system. Conventional screen-film radiography was compared with six algorithms of isodose storage phosphor digital radiography (0.2-mm x 10-bit pixel matrix) in the det...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.178.3.1994410
更新日期:1991-03-01 00:00:00
abstract::Excretory urography could be performed less frequently if some combinations of genitourinary signs and symptoms were found to be predictive of either a specific disease or normality. To explore this possibility, the authors conducted a prospective study involving more than 3,000 patients at three institutions (a teach...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.154.3.3969460
更新日期:1985-03-01 00:00:00
abstract:PURPOSE:To investigate whether the pancreatic uncinate process is hypoplastic in patients with intestinal nonrotation, and to evaluate the association of hypoplasia or aplasia of the uncinate process with mesenteric vascular inversion. MATERIALS AND METHODS:Computed tomographic (CT) scans of the pancreas in five patie...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.205.2.9356640
更新日期:1997-11-01 00:00:00
abstract::Benign sinonasal masses and slow-growing neoplasms tend to remodel the nasal vault and facial bones, and this is particularly true of nasal polyps and inverted papillomas. However, when such benign masses press against the floor of the anterior cranial fossa and the walls of the sphenoid sinuses, simulated aggressive ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.180.3.1871290
更新日期:1991-09-01 00:00:00
abstract::Purpose To compare adverse events and survival outcomes, including cancer-specific survival and overall survival (OS), in patients with T1aN0M0 renal cell carcinoma (RCC) who are undergoing partial nephrectomy (PN), radical nephrectomy (RN), thermal ablation (TA), or active surveillance (AS). Materials and Methods Thr...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2018171407
更新日期:2018-07-01 00:00:00
abstract:PURPOSE:To evaluate the accuracy of preoperative computed tomography (CT) in predicting the location and type of ductal involvement and malignant transformation in intraductal papillary mucinous (IPM) pancreatic tumors and to determine the predictive factors for malignancy at CT. MATERIALS AND METHODS:The helical CT s...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.217.3.r00dc24757
更新日期:2000-12-01 00:00:00
abstract:PURPOSE:To retrospectively describe the magnetic resonance (MR) imaging characteristics of normal breast tissue and breast cancer in the setting of lactation. MATERIALS AND METHODS:The HIPAA-compliant study was exempt from institutional approval, and informed consent was not required. Unilateral MR imaging of 10 breas...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2372040837
更新日期:2005-11-01 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
pub_type: 杂志文章
doi:10.1148/radiology.140.3.7280240
更新日期:1981-09-01 00:00:00
abstract::To investigate spatial resolution requirements for digitized portal images in radiation therapy, observer performance tests were performed. One hundred twenty portal images were digitized with sampling frequencies of 0.700, 0.350, and 0.175 mm for observation. Receiver operating characteristic analysis was used to det...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.183.2.1561370
更新日期:1992-05-01 00:00:00
abstract:PURPOSE:To comply with federal and state guidelines, a credentialing process was developed for nonradiologist medical users of fluoroscopy. MATERIALS AND METHODS:Seventy-three nonradiologist physicians participated in a program consisting of (a) an introductory 1-hour lecture; (b) a 10-page booklet providing basic inf...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.190.1.8259420
更新日期:1994-01-01 00:00:00