Abstract:
PURPOSE:To develop a noninvasive method for demonstrating the main salivary gland duct systems. MATERIALS AND METHODS:The authors developed a magnetic resonance (MR) imaging protocol that uses a heavily T2-weighted (echo time, 750 msec), fat-suppressed pulse sequence and rapid acquisition with relaxation enhancement. The technique was optimized to depict fluid within a two-dimensional thick slab. A preliminary evaluation was performed by examining the major salivary gland ducts in 10 asymptomatic volunteers and three symptomatic patients with known salivary duct abnormalities. RESULTS:The main parotid gland ducts were clearly demonstrated in all volunteers. The submandibular ducts were visible in all cases, although not always on projection images. In the three patients, the MR technique clearly demonstrated bilateral sialectasis, a calculus obstructing the left submandibular duct, and a fluid-filled ranula, respectively. CONCLUSION:Preliminary work indicates that this MR technique can successfully demonstrate both normal and abnormal parotid and submandibular gland duct systems and has several advantages over conventional x-ray sialography.
journal_name
Radiologyjournal_title
Radiologyauthors
Lomas DJ,Carroll NR,Johnson G,Antoun NM,Freer CEdoi
10.1148/radiology.200.1.8657900subject
Has Abstractpub_date
1996-07-01 00:00:00pages
129-33issue
1eissn
0033-8419issn
1527-1315journal_volume
200pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::Four nodules, visualized with 99mTc pertechnetate at 20-60 min., were not visualized with either 123I or 131I at 2-4 hours. Each nodule was demonstrated to have autonomy of function in excess of surrounding normal tissue when imaged with radioiodine after TSH suppression. Rapid turnover of an iodine moiety would seem ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/119.3.737
更新日期:1976-06-01 00:00:00
abstract:PURPOSE:To determine the visibility of presumably excised lesions on screen-film mammograms obtained after biopsy and to determine the accuracy of clip deployment on the basis of measurements obtained on routine pre- and postbiopsy mammograms. MATERIALS AND METHODS:One hundred eleven cases of core-needle biopsy with c...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.218.2.r01fe39510
更新日期:2001-02-01 00:00:00
abstract::Background Increased cerebral signal intensity (SI) has been reported in patients undergoing MRI with gadolinium-based contrast agents (GBCAs). Published data on gadobenate dimeglumine have been somewhat contradictory. Purpose To evaluate the relationship between dosage of gadobenate dimeglumine and SI change at MRI f...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2020190246
更新日期:2020-07-01 00:00:00
abstract::Steeple-shaped shadows adjacent to the diaphragm are common in upper lobe collapse due to a variety of causes. They call attention to upper lobe collapse and should not be considered indicative of intrinsic lower lobe abnormality. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.134.3.7355230
更新日期:1980-03-01 00:00:00
abstract::Purpose To evaluate glass-fiber-based guidewires that are safe for magnetic resonance (MR) imaging-guided endovascular interventions by using a phantom and an in vivo swine model. Materials and Methods MR imaging-safe guidewires were made from micropultruded glass and/or aramid fibers and epoxy resin with diameters of...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2017152742
更新日期:2017-08-01 00:00:00
abstract::A summary of the activities of the International Commission on Radiation Units and Measurements since 1973 is presented. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/127.2.549
更新日期:1978-05-01 00:00:00
abstract::Growth deformities of the distal femur and unusual gait disturbances were observed in four girls who had had neonatal osteomyelitis and septic arthritis. In each case apparent absence or hypoplasia of one of the femoral condyles, as seen on plain radiographs, was associated with marked genu varum or genu valgum. Arthr...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.161.2.3763900
更新日期:1986-11-01 00:00:00
abstract::Analysis of 9 cases of bilateral bent limbs (campomelia) and dwarfism, as well as a review of the literature, indicate that campomelic syndrome appears to be a well-defined distinct disorder which the authors call long-limbed campomelic syndrome. Other neonates with congenital bent-limbed dwarfism can be classified as...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/120.3.641
更新日期:1976-09-01 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
pub_type: 杂志文章
doi:10.1148/radiology.177.3.2244000
更新日期:1990-12-01 00:00:00
abstract:PURPOSE:To evaluate the magnetic resonance (MR) imaging appearance of the testes in women with complete androgen insensitivity syndrome (CAIS), including any benign or malignant changes. MATERIALS AND METHODS:This was a retrospective review of the testicular MR images and histologic reports from 25 patients with CAIS ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.13121068
更新日期:2013-07-01 00:00:00
abstract:PURPOSE:To characterize the imaging features of desmoplastic small round cell tumor of the abdomen and correlate them with the histopathologic findings. MATERIALS AND METHODS:Eleven of 14 patients with desmoplastic small round cell tumor had primary abdominal involvement. In nine of these patients (mean age, 20 years)...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.210.3.r99mr42633
更新日期:1999-03-01 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
pub_type: 杂志文章
doi:10.1148/radiol.2521081873
更新日期:2009-07-01 00:00:00
abstract::Three examples of permanently inflated transluminal catheter balloons are presented. Two of these occurred during attempted percutaneous transluminal angioplasty. Nonsurgical solutions, which were successful in each case, are described. Percutaneous puncture with a needle or a larger diameter coaxial catheter under fl...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.155.3.3159040
更新日期:1985-06-01 00:00:00
abstract::Radiographic images can be converted into numerical sequences that can be evalueate by computer to determine the significance of certain radiographic findings in peripheral pulmonary nodules. Of three methods (discriminant analysis. Bayes' theoroem, and the Calm system), discriminant analysis has proven the best with ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/125.3.583
更新日期:1977-12-01 00:00:00
abstract::The authors present a case of congenital bronchopulmonary foregut malformation with pulmonary artery blood supply and pulmonary venous drainage in a five-month-old boy. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/114.2.423
更新日期:1975-02-01 00:00:00
abstract::The vertebral involvement of DISH is described from an evaluation of 215 cadaveric spines and 100 patients with the disease. Radiographic features include linear new bone formation along the anterolateral aspect of the thoracic spine, a bumpy contour, subjacent radiolucency, and irregular and pointed bony excrescences...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/119.3.559
更新日期:1976-06-01 00:00:00
abstract::Left atrial-coronary sinus fenestration is a rare cause of a left-to-right or right-to-left shunt which occurs most commonly with a persistent left superior vena cava. These fenestrations may represent the only pathway for an obligatory right-to-left or left-to-right shunt in atrioventricular valve atresia. Four cases...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.135.2.7367620
更新日期:1980-05-01 00:00:00
abstract::The histological nature and angiographic characteristics of two cases of Castleman tumor support the concept that these tumors are hamartomatous. On angiography, both tumors exhibited a dense and homogeneous blush in the later phase. In one, in the mediastinum, hypertrophied branches of the bronchial artery gave rise ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/130.2.311
更新日期:1979-02-01 00:00:00
abstract:PURPOSE:To retrospectively analyze radiation dose data for six common venous access procedures. MATERIALS AND METHODS:Institutional review board approval was obtained for this HIPAA-compliant study; informed consent was not required. Data review was limited to a quality assurance database. Patient medical records were...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2382042070
更新日期:2006-03-01 00:00:00
abstract::Gray scale ultrasonic visualization of the breast is a simple and safe technique for the detection of liquid-filled masses. Cysts and enlarged ducts as small as 2 mm in diameter can be reliably detected with a greater accuracy than is possible with any other imaging technique. The ultrasonic examination provides consi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/125.1.205
更新日期:1977-10-01 00:00:00
abstract:PURPOSE:To evaluate the usefulness of T2-weighted fast spin-echo magnetic resonance (MR) imaging with a 512 x 256 matrix for assessment of the preoperative stage of endometrial carcinoma. MATERIALS AND METHODS:Twenty-eight women with histopathologically proved endometrial carcinoma underwent preoperative T2-weighted f...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.206.2.9457210
更新日期:1998-02-01 00:00:00
abstract::Radiologically characteristic extra-alveolar air collections in one or both inferior pulmonary ligaments developed in 14 neonates with respiratory distress on assisted ventilation. Eleven infants had radiographically visible pulmonary interstitial emphysema prior to or concurrent with the air collections. All infants ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/130.2.357
更新日期:1979-02-01 00:00:00
abstract:PURPOSE:To assess the ability of positron emission tomography (PET) with 2-[fluorine-18]fluoro-2-deoxy-D-glucose (FDG) to allow differentiation of benign from malignant intraosseous lesions. MATERIALS AND METHODS:Twenty patients with strictly intraosseous lesions (five benign and 15 malignant [three primary and 12 met...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.200.1.8657920
更新日期:1996-07-01 00:00:00
abstract::Twelve cases of fibrous ureteral polyps are presented, illustrating their characteristic radiographic appearances. Two types--a long pedunculated mobile variety having a smooth surface, and a relatively shorter lesion covered with thin, finger-like projections--may be identified. Demonstration of the typical findings ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/130.1.73
更新日期:1979-01-01 00:00:00
abstract:PURPOSE:To determine the reliability and accuracy of magnetic resonance (MR) arthrography for the diagnosis of superior labral anterior posterior (SLAP) tears. MATERIALS AND METHODS:The MR arthrograms in 80 patients who underwent arthroscopy and MR arthrography during a 54-month period were retrospectively reviewed. M...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.218.1.r01ja44127
更新日期:2001-01-01 00:00:00
abstract:PURPOSE:The authors reviewed serial computed tomographic (CT) scans obtained in 19 patients with diffuse panbronchiolitis (DPB) to evaluate changes in disease pattern over time. MATERIALS AND METHODS:Nineteen patients with DPB were entered into the study. After initial CT examination, 12 patients were randomly assigne...
journal_title:Radiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1148/radiology.189.2.8210390
更新日期:1993-11-01 00:00:00
abstract::Twenty-one bone marrow transplantation (BMT) patients were studied prospectively to determine the prevalence of sonographic hepatobiliary abnormalities and to determine if these abnormalities were associated with hepatic venocclusive disease (VOD). Baseline US was performed in all patients prior to chemoradiation ther...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.184.3.1509050
更新日期:1992-09-01 00:00:00
abstract::Twenty cases of methadone-induced pulmonary edema confirmed by clinical, laboratory and roentgenographic findings were extensively reviewed and the roentgenographic manifestations defined in terms of patterns, distribution, and duration of the process. Drug tolerance is a major factor in determining the severity of to...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/114.1.51
更新日期:1975-01-01 00:00:00
abstract::Pneumoperitoneum, pneumomediastinum, pneumopericardium and subcutaneous emphysema developed in a patient following simple dental extraction. Other causes of this unusual complication, such as pneumatosis cystoides intestinalis, insufflation of fallopian tubes, pulmonary-peritoneal fistula, post-partum knee-chest exerc...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/15.3.539
更新日期:1975-06-01 00:00:00
abstract::A new method is presented for the removal of streaking artifact in computed tomography. The method uses a nearest-neighbor pattern recognition technique to redetermine ray sums that intersect the foreign object responsible for the streaking. When the method is applied to the removal of streaking artifact caused by lea...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.141.1.7291530
更新日期:1981-10-01 00:00:00