Double-lumen central venous catheter for percutaneous ureteral perfusion studies.

abstract：:Compression ultrasound (US) has become widely used to diagnose acute deep venous thrombosis (DVT). To determine the appearance of veins with previous DVT, 60 legs (58 patients) in which DVT had been diagnosed 6-31 months earlier (mean, 15.1 months) were reexamined with compression US. At reevaluation there was no indi...

journal_title：Radiology

authors： Cronan JJ,Leen V

更新日期：1989-03-01 00:00:00

abstract：:In a prospective study, the effect of infusion of a low-density contrast material was evaluated as an adjunct to high-density, double-contrast imaging of the sigmoid colon. After double-contrast barium enema (DCBE) study, 52 consecutive patients with sigmoid diverticulosis received an additional 500-750-mL enema eithe...

journal_title：Radiology

authors： Lappas JC,Maglinte DD,Kopecky KK,Cockerill EM,Lehman GA

更新日期：1988-07-01 00:00:00

abstract：PURPOSE:To evaluate the data acquired over 2 1/2 years regarding the use of mechanical thrombolysis as the routine, preferred treatment for thrombosed access grafts in a large patient population undergoing hemodialysis. MATERIALS AND METHODS:Mechanical thrombolysis was performed in 1,176 cases. Data were collected on ...

journal_title：Radiology

authors： Beathard GA,Welch BR,Maidment HJ

更新日期：1996-09-01 00:00:00

abstract：PURPOSE:To investigate whether cerebral blood volume (CBV), peak height (PH), and percentage of signal intensity recovery (PSR) measurements derived from the results of T2-weighted dynamic susceptibility-weighted contrast material-enhanced (DSC) magnetic resonance (MR) imaging performed after external beam radiation th...

journal_title：Radiology

authors： Barajas RF Jr,Chang JS,Segal MR,Parsa AT,McDermott MW,Berger MS,Cha S

更新日期：2009-11-01 00:00:00

abstract：:Background Chest CT is used in the diagnosis of coronavirus disease 2019 (COVID-19) and is an important complement to reverse-transcription polymerase chain reaction (RT-PCR) tests. Purpose To investigate the diagnostic value and consistency of chest CT as compared with RT-PCR assay in COVID-19. Materials and Methods ...

journal_title：Radiology

authors： Ai T,Yang Z,Hou H,Zhan C,Chen C,Lv W,Tao Q,Sun Z,Xia L

更新日期：2020-08-01 00:00:00

abstract：:Twenty-five patients, each of whom had peripheral intrathoracic lesions that were smaller than 5.0 X 5.0 cm in size and not diagnosed by conventional methods, underwent real-time sonography and ultrasonically guided aspiration biopsy. The lesions included 18 nodules, two infiltrates, and five cavitary lesions. Sonogra...

journal_title：Radiology

authors： Yang PC,Luh KT,Sheu JC,Kuo SH,Yang SP

更新日期：1985-05-01 00:00:00

abstract：:The records of 71 patients with adenoid cystic carcinoma of the salivary glands were reviewed to determine the dose response relationships for this aggressive tumor. Local control after treatment was determined for all patients and analyzed with respect to extent of surgery and dose of radiation. Of 70 patients who we...

journal_title：Radiology

authors： Simpson JR,Thawley SE,Matsuba HM

更新日期：1984-05-01 00:00:00

abstract：:Five patients with frostbite injury were studied by selective angiography and treated by selective intra-arterial application of reserpine with follow-up angiography two days later. Control angiograms showed various degrees of vascular spasm as well as organic stenosis and occlusion. Intra-arterial reserpine produced ...

journal_title：Radiology

authors： Gralino BJ,Porter JM,Rosch J

更新日期：1976-05-01 00:00:00

abstract：:Absolute speeds (mR-1) of screen-film systems were determined accurately and precisely from ten independent measurements over a six month period at several beam qualities that included both scatter and scatter-free conditions. The absorbed x-ray energies in the screens that yielded a net film density of 1.0 were obtai...

journal_title：Radiology

authors： Kodera Y,Doi K,Chan HP

更新日期：1984-04-01 00:00:00

abstract：:Fifteen patients with suspected or known aortic dissection were imaged with magnetic resonance (MR). Thirteen of these patients were eventually shown to have dissection. In most instances the diagnosis was established by aortography and/or computed tomography (CT) prior to the MR study. Surgical proof (6/13) and/or ao...

journal_title：Radiology

authors： Amparo EG,Higgins CB,Hricak H,Sollitto R

更新日期：1985-05-01 00:00:00

abstract：:The purpose of this study was to develop a spike-related functional magnetic resonance (MR) imaging method to detect epileptic brain activity. Correlations between simultaneous spike-related functional MR imaging and electroencephalographic (EEG) recordings were performed in 10 patients with focal epilepsy. Postproces...

journal_title：Radiology

authors： Jäger L,Werhahn KJ,Hoffmann A,Berthold S,Scholz V,Weber J,Noachtar S,Reiser M

更新日期：2002-06-01 00:00:00

abstract：:Two patients with cystic fibrosis and pancreatic cystosis are described who had complete replacement of the pancreas by multiple macroscopic cysts. The possible causes and clinical significance of this condition are discussed. ...

journal_title：Radiology

authors： Hernanz-Schulman M,Teele RL,Perez-Atayde A,Zollars L,Levine J,Black P,Kuligowska E

更新日期：1986-03-01 00:00:00

abstract：:Retrospective analysis of 139 ventilation-perfusion (V/Q) lung scans obtained for suspected pulmonary embolism (PE) was undertaken, using the Biello criteria for interpretation. All scans were correlated with chest radiographs obtained within 24 hours and with pulmonary angiograms obtained within 72 hours of the V/Q s...

journal_title：Radiology

authors： Spies WG,Burstein SP,Dillehay GL,Vogelzang RL,Spies SM

更新日期：1986-05-01 00:00:00

abstract：:Complications of indwelling ureteral stents were managed percutaneously in 13 patients. These complications consisted of three fractured, three heavily encrusted, and seven migrated stents. While most ureteral stent malfunctions are routinely managed with retrograde techniques, the percutaneous approach allows effecti...

journal_title：Radiology

authors： LeRoy AJ,Williams HJ Jr,Segura JW,Patterson DE,Benson RC Jr

更新日期：1986-01-01 00:00:00

abstract：PURPOSE:To determine the proportion of children and young adults in whom the thymus extends superiorly above the level of the manubrium into the anterior cervical tissues on magnetic resonance (MR) imaging studies. MATERIALS AND METHODS:This retrospective study was approved by the institutional review board, and writt...

journal_title：Radiology

authors： Costa NS,Laor T,Donnelly LF

更新日期：2010-07-01 00:00:00

abstract：:Adjuvant chemotherapy prolongs the survival of patients with high-grade osteosarcoma. Preoperative chemotherapy allows identification of effective agents for adjuvant chemotherapy based on response of the primary tumor. Preoperative determination of tumor response has therapeutic implications, and angiography offers a...

journal_title：Radiology

authors： Carrasco CH,Charnsangavej C,Raymond AK,Richli WR,Wallace S,Chawla SP,Ayala AG,Murray JA,Benjamin RS

更新日期：1989-03-01 00:00:00

abstract：:A new technique for the determination of bone mineral density, based on the detection of both coherently and Compton scattered photons in a narrow beam geometry, is described. Initial results show that this method delivers an accuracy of less than 2% when varying quantities of materials surround the measuring site. ...

journal_title：Radiology

authors： Puumalainen P,Uimarihuhta A,Olkkonen H

更新日期：1976-09-01 00:00:00

abstract：:Sports medicine is one of the most rapidly growing subspecialties in orthopedics. Magnetic resonance (MR) imaging in sports medicine includes depiction of normal anatomy and pathologic conditions in almost every joint in the body, but the MR examinations most frequently requested are of the knee and shoulder. The repo...

journal_title：Radiology

authors： Helms CA

更新日期：2002-09-01 00:00:00

abstract：:Background MRI with fluorine 19 (19F) probes has shown an ability to track immune cell activity with a specific, stable, and quantitative signal. In addition, the chemical shift differences of selected 19F probes make dual-probe imaging possible. To improve 19F MRI sensitivity for dual-probe imaging, optimal fluorine ...

journal_title：Radiology

authors： Chirizzi C,De Battista D,Tirotta I,Metrangolo P,Comi G,Bombelli FB,Chaabane L

更新日期：2019-05-01 00:00:00

abstract：:Evidence-based radiology (EBR) is an important tool for the practice of radiology. The user of the EBR approach identifies evidence in a systematic fashion and then assimilates information through in-depth, explicit critical review of the best-designed and most recent literature on the subject in question. Clinical de...

journal_title：Radiology

authors： Medina LS,Blackmore CC

更新日期：2007-08-01 00:00:00

abstract：PURPOSE:To determine how sensitive and specific the magnetic resonance (MR) imaging finding of subcallosal striations is for multiple sclerosis (MS). MATERIALS AND METHODS:In 18 patients with clinically suspected MS and 32 age-matched patients without MS, sagittal 2-mm fast fluid-attenuated inversion-recovery (FLAIR) ...

journal_title：Radiology

authors： Palmer S,Bradley WG,Chen DY,Patel S

更新日期：1999-01-01 00:00:00

abstract：PURPOSE:To investigate the incidence and characteristics of cerebellar injury in a cohort of very preterm infants by using the mastoid fontanelle (MF) and posterior fontanelle (PF) approach in addition to routine cranial ultrasonography (US) through the anterior fontanelle (AF), with magnetic resonance (MR) imaging as ...

journal_title：Radiology

authors： Steggerda SJ,Leijser LM,Wiggers-de Bruïne FT,van der Grond J,Walther FJ,van Wezel-Meijler G

更新日期：2009-07-01 00:00:00

abstract：:To determine the impact of radiographic findings on the interpretation of bone and gallium scans of patients with active osteomyelitis, the authors reviewed the medical records and radiologic examinations of 104 patients. The only diagnostic finding of active disease on radiographs was the presence of a sequestrum (th...

journal_title：Radiology

authors： Tumeh SS,Aliabadi P,Weissman BN,McNeil BJ

更新日期：1987-12-01 00:00:00

abstract：PURPOSE:To evaluate toxicity and efficacy of endobronchial brachytherapy with high-dose-rate (HDR) after-loading of iridium-192 for recurrent endobronchial lesions. MATERIALS AND METHODS:From 1988 to 1993, 81 patients with lung cancer previously treated with external beam radiation therapy were treated with palliative...

journal_title：Radiology

authors： Delclos ME,Komaki R,Morice RC,Allen PK,Davis M,Garden A

更新日期：1996-10-01 00:00:00

abstract：:Most patients with hepatic portal venous gas are seriously ill with some combination of bowel ischemia, distension, and/or necrosis. The authors report a case in which a necrotic splenic flexure carcinoma seeded gas and septic thrombi to the liver. ...

journal_title：Radiology

authors： Gold RP,Seaman WB

更新日期：1977-02-01 00:00:00

abstract：:Abdominal computed tomography (CT) scans of 55 patients who had ingested Gastrografin (meglumine diatrizoate and diatrizoate sodium) diluted to 2% with tap water and flavored with a commercial fruit juice base were reviewed. Twenty patients (36%) demonstrated intraluminal precipitation of Gastrografin shown by focal a...

journal_title：Radiology

authors： Ball DS,Radecki PD,Friedman AC,Caroline DF,Mayer DP

更新日期：1986-01-01 00:00:00

abstract：:In his review of the AAPM statement on ultrasound, the author feels that allowing "some" research or demonstration on normal persons in the face of cautionary statements on as yet unknown side effects is an inconsistent position. The use of videotapes and the development of simulators hacked by data banks are offered...

journal_title：Radiology

authors： Gramiak R

更新日期：1975-09-01 00:00:00

abstract：:An angiographic system capable of simultaneous biplane stereoscopic magnification cerebral angiography was evaluated. Stereoscopic imaging improved the morphologic depiction of aneurysms and of arteriovenous malformations. In a series of 357 patients, procedure time was reduced because the initial biplane stereoscopic...

journal_title：Radiology

authors： Kleefield J,O'Reilly GV,Barsotti JB,Brooks ML

更新日期：1987-11-01 00:00:00

abstract：:Sonographic analysis of the sciatic nerve was performed in vitro (anatomic specimen), in vivo (healthy volunteers), and in 16 patients with suspected peripheral sciatic nerve lesions. The ultrasound (US) examinations were performed with standard and high-resolution US equipment with linear-array configuration. The nor...

journal_title：Radiology

authors： Graif M,Seton A,Nerubai J,Horoszowski H,Itzchak Y

更新日期：1991-11-01 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

authors： Nguyen NC,Molnar TT,Cummin LG,Kanal E

更新日期：2020-07-01 00:00:00