The sonographically patent umbilical vein in portal hypertension.

abstract：PURPOSE:To determine the diagnostic efficacy of hard- and soft-copy computed radiographic (CR) images versus conventional screen-film images of the chest in the detection of subtle pulmonary abnormalities. MATERIALS AND METHODS:Twenty observes compared 87 hard-copy and soft-copy CR images with hard-copy screen-film im...

journal_title：Radiology

authors： Ishigaki T,Endo T,Ikeda M,Kono M,Yoshida S,Ikezoe J,Murata K,Matsumoto M

更新日期：1996-10-01 00:00:00

abstract：PURPOSE:To assess the accuracy of glomerular filtration rate (GFR) measurements obtained with low-contrast agent dose dynamic contrast material-enhanced magnetic resonance (MR) renography in patients with liver cirrhosis who underwent routine liver MR imaging, with urinary clearance of technetium 99m ((99m)Tc) pentetic...

journal_title：Radiology

authors： Vivier PH,Storey P,Rusinek H,Zhang JL,Yamamoto A,Tantillo K,Khan U,Lim RP,Babb JS,John D,Teperman LW,Chandarana H,Friedman K,Benstein JA,Skolnik EY,Lee VS

更新日期：2011-05-01 00:00:00

abstract：:A percutaneously inserted biliary drainage catheter was converted from external to internal drainage with the use of an additional catheter advanced through the gastrostomy opening. This technique was successful in one patient with unresectable cancer of the head of the pancreas, in whom it was performed to overcome t...

journal_title：Radiology

authors： Morita S,Matsumoto S,Soejima T,Odani R,Yokota T

更新日期：1988-04-01 00:00:00

abstract：PURPOSE:To describe the diaphragm muscle slip sign, a previously unreported finding of pneumoperitoneum on plain radiographs. MATERIALS AND METHODS:Diaphragmatic muscle slips were observed on supine plain abdominal (n = 6) or recumbent frontal chest (n = 3) radiographs in nine patients. Computed tomographic (CT) confi...

journal_title：Radiology

authors： Cho KC,Baker SR

更新日期：1997-05-01 00:00:00

abstract：PURPOSE:To retrospectively determine the frequency of diaphragmatic injury when percutaneous hepatic radiofrequency (RF) ablation is performed adjacent to the diaphragm. MATERIALS AND METHODS:Institutional Review Board approval was obtained for our HIPAA-compliant study. Informed consent for the ablation procedure and...

journal_title：Radiology

authors： Head HW,Dodd GD 3rd,Dalrymple NC,Prasad SR,El-Merhi FM,Freckleton MW,Hubbard LG

更新日期：2007-06-01 00:00:00

abstract：PURPOSE:To evaluate with sonography the normal development of the fetal cerebellum in the second trimester. MATERIALS AND METHODS:The study included all patients undergoing second trimester genetic amniocentesis who had structurally normal fetuses, in whom the posterior fossa was adequately seen and in whom the karyot...

journal_title：Radiology

authors： Bromley B,Nadel AS,Pauker S,Estroff JA,Benacerraf BR

更新日期：1994-12-01 00:00:00

abstract：:A total of 24,560 fetal biparietal measurements were made using the B-scan technique. The increase in biparietal diameter was compared in normal pregnancies, in those complicated by diabetes or toxemia, and in fetuses thought to be small for dates. Only the last of these groups demonstrated a statistically significant...

journal_title：Radiology

authors： Aantaa K,Forss M

更新日期：1980-10-01 00:00:00

abstract：PURPOSE:To retrospectively determine whether baseline nodule characteristics at 3-month and 1-year volume doubling time (VDT) are predictive for lung cancer in solid indeterminate noncalcified nodules (NCNs) detected at baseline computed tomographic (CT) screening. MATERIALS AND METHODS:The study, conducted between Ap...

journal_title：Radiology

authors： Xu DM,van der Zaag-Loonen HJ,Oudkerk M,Wang Y,Vliegenthart R,Scholten ET,Verschakelen J,Prokop M,de Koning HJ,van Klaveren RJ

更新日期：2009-01-01 00:00:00

abstract：PURPOSE:To evaluate the relationship among chest radiographs, oxygen supplementation requirement, and treatment response in severe acute respiratory syndrome (SARS). MATERIALS AND METHODS:Forty patients (20 women, 20 men; mean age, 42.90 years +/- 14.01 [SD]; median age, 41.5 years; age range, 25-82 years) with SARS w...

journal_title：Radiology

authors： Ooi CG,Khong PL,Ho JC,Lam B,Wong WM,Yiu WC,Wong PC,Wong CF,Lai KN,Tsang KW

更新日期：2003-11-01 00:00:00

abstract：:Background Thermal ablation of cancers may be associated with high rates of local tumor progression. A thermal accelerant gel has been developed to improve the transmission of microwave energy in biologic tissues with the aim of enlarging the thermal ablation zone. Purpose To determine the effects of a thermal acceler...

journal_title：Radiology

authors： Maxwell AWP,Park WKC,Baird GL,Martin DW,Lombardo KA,Dupuy DE

更新日期：2019-05-01 00:00:00

abstract：:Radiographic findings previously thought pathognomonic for juvenile nasopharyngeal angiofibroma are anterior bowing of the posterior wall of the maxillary antrum on plain films or tomography, and a dense homogeneous blush on angiography. Two patients presented with nasopharyngeal masses which mimicked angiofibroma rad...

journal_title：Radiology

authors： Shaffer K,Haughton V,Farley G,Friedman J

更新日期：1978-05-01 00:00:00

abstract：:Background Results of recent phantom studies show that variation in CT acquisition parameters and reconstruction techniques may make radiomic features largely nonreproduceable and of limited use for prognostic clinical studies. Purpose To investigate the effect of CT radiation dose and reconstruction settings on the r...

journal_title：Radiology

authors： Meyer M,Ronald J,Vernuccio F,Nelson RC,Ramirez-Giraldo JC,Solomon J,Patel BN,Samei E,Marin D

更新日期：2019-12-01 00:00:00

abstract：PURPOSE:To characterize the radiographic features of ventilator-associated Pseudomonas aeruginosa pneumonia (PAP). MATERIALS AND METHODS:In 56 patients (40 men and 16 women), PAP was documented with fiberoptic bronchoscopy. All patients underwent mechanical ventilation for at least 48 hours before diagnosis. The findi...

journal_title：Radiology

authors： Winer-Muram HT,Jennings SG,Wunderink RG,Jones CB,Leeper KV Jr

更新日期：1995-04-01 00:00:00

abstract：:We report success with CT guided percutaneous catheter drainage of deep neck abscesses. The cost efficacy and decreased morbidity of percutaneous catheter drainage has been proved in abdominal and retroperitoneal abscess management, and CT for diagnosis of deep neck infections is well established. The logical applicat...

journal_title：Radiology

authors： Cole DR,Bankoff M,Carter BL

更新日期：1984-07-01 00:00:00

abstract：PURPOSE:To determine the effects of the Valsalva maneuver on intraluminal colon pressure during air enema studies. MATERIALS AND METHODS:Air enema studies were performed in four adult volunteers, and intraluminal colon pressure measurements were recorded with a high-speed electronic strip chart and aneroid gauge metho...

journal_title：Radiology

authors： Bramson RT,Shiels WE 2nd,Eskey CJ,Hu SY

更新日期：1997-03-01 00:00:00

abstract：:Three cases of a basilar/middle meningeal artery anastomosis are demonstrated angiographically. No reference to previous angiographic demonstration of this vascular anomaly has been found in the literature, and only one similar case with an anatomical description has been located. An embryological explanation of this ...

journal_title：Radiology

authors： Seeger JF,Hemmer JF

更新日期：1976-02-01 00:00:00

abstract：:Ultrasonic features of 21 surgically confirmed pyogenic liver abscesses in 18 patients were analyzed. Typical lesions were round or ovoid with a discrete, irregular, echo-poor margin. The number and intensity of internal echoes and sound transmission were variable. Such lesions can be aspirated percutaneously for defi...

journal_title：Radiology

authors： Newlin N,Silver TM,Stuck KJ,Sandler MA

更新日期：1981-04-01 00:00:00

abstract：:Microwave radiometry is a passive and noninvasive technique that allows quick detection of subcutaneous temperature changes. The feasibility of this technique for differentiating normal intravenous infusions of radiographic contrast medium from extravasations of contrast medium was tested in anesthetized dogs. Room-te...

journal_title：Radiology

authors： Shaeffer J,Sigfred SV,Sevcik MA,Grabowy RS,Gemmell LA,Hirschman AD

更新日期：1992-07-01 00:00:00

abstract：:With the recent improvements in diagnosis and treatment of distal radius and carpal injuries, the hand surgeons' expectations of relevant radiologic interpretation of imaging studies are heightened. Conventional radiographic examinations, as well as more sophisticated and invasive studies, have important roles in the ...

journal_title：Radiology

authors： Goldfarb CA,Yin Y,Gilula LA,Fisher AJ,Boyer MI

更新日期：2001-04-01 00:00:00

abstract：:In selective internal radiation (SIR) therapy of hepatic metastases, tumor vasculature is preferentially embolized with high-energy beta-emitting yttrium-90-labeled microspheres. To enable accurate estimation of the resultant absorbed radiation doses to tissues, an intraoperative beta detection probe is used to scan t...

journal_title：Radiology

authors： Burton MA,Gray BN,Kelleher DK,Klemp PF

更新日期：1990-04-01 00:00:00

abstract：PURPOSE:To assess whether using magnetic resonance (MR) imaging combined with computational fluid dynamics (CFD) could reveal changes in common carotid artery (CCA) flow and wall shear stress (WSS) that might contribute to differences in CCA remodeling between amlodipine, a calcium channel blocker, and lisinopril, an a...

journal_title：Radiology

authors： Ariff BB,Glor FP,Crowe L,Xu XY,Vennart W,Firmin DN,Thom SM,Hughes AD

更新日期：2010-12-01 00:00:00

abstract：PURPOSE:To compare the computed tomographic (CT) findings of tuberculosis and Mycobacterium avium-intracellulare (MAI) infection in immunocompetent patients. MATERIALS AND METHODS:Seventy-seven consecutive immunocompetent patients with culture-proved pulmonary mycobacterial infection (45 with pulmonary tuberculosis, 3...

journal_title：Radiology

authors： Primack SL,Logan PM,Hartman TE,Lee KS,Müller NL

更新日期：1995-02-01 00:00:00

abstract：:A grid consisting of a focused array of radiopaque strips has been constructed. No interspace material is employed, and, during an exposure, the arrangement moves so that the grid strips remain focused and a uniform film density is obtained. Preliminary measurements and radiographs of patients indicate that such a dev...

journal_title：Radiology

authors： Barnes GT,Moreland RF,Yester MV,Witten DM

更新日期：1980-06-01 00:00:00

abstract：PURPOSE:To estimate the radiation dose from whole-body fluorine 18 ((18)F)-fluorodeoxyglucose (FDG) positron emission tomographic (PET)/computed tomographic (CT) studies and to evaluate the induced cancer risk to U.S. and Hong Kong populations. MATERIALS AND METHODS:Fluorine 18-FDG PET/CT studies obtained by using a 6...

journal_title：Radiology

authors： Huang B,Law MW,Khong PL

更新日期：2009-04-01 00:00:00

abstract：:Although intravascular foreign bodies are routinely removed with percutaneous extraction, surgical retrieval is performed of most nonvascular foreign bodies. The authors describe six cases in which percutaneous extraction was performed for removal of nonvascular foreign bodies. These foreign bodies included an intraab...

journal_title：Radiology

authors： Nosher JL,Siegel R

更新日期：1993-06-01 00:00:00

abstract：PURPOSE:To comprehensively assess thoracic anatomy and pulmonary microcirculation in pulmonary embolism by using computed tomographic (CT) angiography of the pulmonary arteries combined with functional CT imaging of blood flow. MATERIALS AND METHODS:Twenty-two patients suspected of having acute pulmonary embolism unde...

journal_title：Radiology

authors： Schoepf UJ,Bruening R,Konschitzky H,Becker CR,Knez A,Weber J,Muehling O,Herzog P,Huber A,Haberl R,Reiser MF

更新日期：2000-12-01 00:00:00

abstract：:Twenty-three patients were prospectively examined with ultrasound (US) for acute or recurrent Achilles tendon symptoms. Three types of pathologic conditions of the Achilles tendon were found: tendinitis/tenosynovitis, acute tendon trauma, and postoperative changes. US appears to enable differentiation of these conditi...

journal_title：Radiology

authors： Blei CL,Nirschl RP,Grant EG

更新日期：1986-06-01 00:00:00

abstract：PURPOSE:To evaluate the long-term success of tantalum stents implanted in iliac artery lesions and to determine potential predictive factors of early and late stent failure. MATERIALS AND METHODS:In 289 patients, flexible tantalum stents were implanted in iliac artery stenoses (n - 223) or occlusions (n - 66). Early a...

journal_title：Radiology

authors： Strecker EP,Boos IB,Hagen B

更新日期：1996-06-01 00:00:00

abstract：:Radiologists are frequently called upon to perform percutaneous biopsy. Selection of the proper needle is becoming more complex as the number of types increases and reports of better results with certain needles proliferate. The authors evaluated a wide variety of needles of different caliber, cutting tip, and bevel. ...

journal_title：Radiology

authors： Andriole JG,Haaga JR,Adams RB,Nunez C

更新日期：1983-09-01 00:00:00

abstract：:The authors identified the origin of a high-density artifact with mammography film. An acrylic ramp phantom (thickness, 0-7 cm) was used to create a continuously variable radiation exposure. A perturbation in the curve of optical density versus position along the ramp was observed. Development of the film with the emu...

journal_title：Radiology

authors： Hedrick WR,Poulton TB,Starchman DE,Tobias TE

更新日期：1998-03-01 00:00:00