Effect of contrast material injection duration and rate on aortic peak time and peak enhancement at dynamic CT involving injection protocol with dose tailored to patient weight.

abstract：PURPOSE:To compare the new "warp" sequence (slice-encoding metal artifact correction [SEMAC], view-angle tilting [VAT], and increased bandwidth) for the reduction of both through-plane and in-plane magnetic resonance (MR) artifacts with current optimized MR sequences in patients with total hip arthroplasty (THA). MATE...

journal_title：Radiology

authors： Sutter R,Ulbrich EJ,Jellus V,Nittka M,Pfirrmann CW

更新日期：2012-10-01 00:00:00

abstract：:Background It is uncertain whether a deep learning-based automatic detection algorithm (DLAD) for identifying malignant nodules on chest radiographs will help diagnose lung cancers. Purpose To evaluate the efficacy of using a DLAD in observer performance for the detection of lung cancers on chest radiographs. Material...

journal_title：Radiology

authors： Jang S,Song H,Shin YJ,Kim J,Kim J,Lee KW,Lee SS,Lee W,Lee S,Lee KH

更新日期：2020-09-01 00:00:00

abstract：:A new type of endovascular prosthesis was inserted in 28 animals and evaluated for several factors, including thrombogenicity, tendency to migrate, critical implant zones, and incorporation into the vascular wall. The new prosthesis is a woven, multifilament structure of stainless steel alloy; its inherent elastic, se...

journal_title：Radiology

authors： Rousseau H,Puel J,Joffre F,Sigwart U,Duboucher C,Imbert C,Knight C,Kropf L,Wallsten H

更新日期：1987-09-01 00:00:00

abstract：:Enemas of various solutions were administered to rats to determine if Gastrografin was specifically irritating to the colonic mucosa. Gastrografin was found to cause considerably more inflammation than Hypaque-25, or barium sulfate. Further studies with hypertonic sorbitol, Renografin-76, and Tween 80 suggested that (...

journal_title：Radiology

authors： Lutzger LG,Factor SM

更新日期：1976-03-01 00:00:00

abstract：PURPOSE:To test whether magnetic resonance (MR) imaging enables accurate measurement of extraction fraction (EF) in swine with unilateral renal ischemia and to evaluate effects of renal arterial stenosis on EF and single-kidney glomerular filtration rate. MATERIALS AND METHODS:High-grade unilateral renal arterial sten...

journal_title：Radiology

authors： Coulam CH,Lee JH,Wedding KL,Spielman DM,Pelc NJ,Kee ST,Hill BB,Bouley DM,Derby GC,Myers BD,Sawyer-Glover AM,Sommer FG

更新日期：2002-04-01 00:00:00

abstract：:Gallbladder disease, and the patients with symptoms suggestive of gallbladder disease, remains a widespread clinical problem that requires investigation by imaging techniques. Sonography, and to a lesser extent cholescintigraphy, has facilitated the evaluation of these patients and allows the diagnosis of cholelithias...

journal_title：Radiology

authors： Cooperberg PL,Gibney RG

更新日期：1987-06-01 00:00:00

abstract：PURPOSE:To review the ultrasonographic (US), computed tomographic (CT), and magnetic resonance (MR) imaging findings in 13 patients with telangiectatic focal nodular hyperplasia (FNH) and to compare imaging features with histopathologic results from resected specimens. MATERIALS AND METHODS:US, helical multiphasic CT,...

journal_title：Radiology

authors： Attal P,Vilgrain V,Brancatelli G,Paradis V,Terris B,Belghiti J,Taouli B,Menu Y

更新日期：2003-08-01 00:00:00

abstract：PURPOSE:To assess the value of magnetic resonance (MR) imaging in the diagnosis of pelvic inflammatory disease (PID) and to compare MR imaging with transvaginal ultrasonography (US) and laparoscopy. MATERIALS AND METHODS:Thirty consecutive patients hospitalized because they were clinically suspected of having PID unde...

journal_title：Radiology

authors： Tukeva TA,Aronen HJ,Karjalainen PT,Molander P,Paavonen T,Paavonen J

更新日期：1999-01-01 00:00:00

abstract：:Two patients with pneumothorax had ventilation-perfusion studies to rule out the possibility of pulmonary embolism; the presence of air in the pleural space was not known to the authors when the study was analyzed. A typical ventilatory pattern characterized by small volume difference at total lung capacity followed b...

journal_title：Radiology

authors： Dhekne RD,Burdine JA

更新日期：1978-10-01 00:00:00

abstract：PURPOSE:To evaluate the use of ultrasound (US) for detection of wooden foreign bodies implanted in cadaveric specimens. MATERIALS AND METHODS:Wooden foreign bodies were randomly placed in the plantar soft tissues of three cadaver feet by using 5-mm-long incisions. Ten foreign bodies were 2.5 x 1.0 mm (length x diamete...

journal_title：Radiology

authors： Jacobson JA,Powell A,Craig JG,Bouffard JA,van Holsbeeck MT

更新日期：1998-01-01 00:00:00

abstract：:The authors review their experience with percutaneous endopyelotomy in the treatment of ureteropelvic junction obstruction. Twenty-four patients with symptoms of ureteropelvic junction obstruction underwent excretory urography, which revealed nonspecific narrowing in several cases. Angiography was performed in 14 pati...

journal_title：Radiology

authors： Bush WH,Brannen GE,Lewis GP

更新日期：1989-05-01 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

abstract：:A previous study determined the normal values and upper limits of liver size, as measured by the longitudinal and sagittal diameters in the midclavicular line and the midline. The present study was performed to determine which of the four sonographic diameters best differentiates between patients who have liver diseas...

journal_title：Radiology

authors： Niederau C,Sonnenberg A

更新日期：1984-11-01 00:00:00

abstract：:Xeroradiographic evaluation of the axillary lymph nodes permits differentiation of characteristic patterns, including normal nodes and those enlarged as the result of fatty infiltration, inflammation, metastases from a breast primary, or primary nodal disease such as lymphoma or hyperplasia. The author describes his e...

journal_title：Radiology

authors： Kalisher L

更新日期：1975-04-01 00:00:00

abstract：:Paraffin block radiography has been shown to be useful in helping identify lesions in biopsy specimens of breast tissue. Use of an orthogonal view enables determination of the approximate depth of a lesion within a paraffin block. This simple technique further guarantees histologic evaluation of the area of radiograph...

journal_title：Radiology

authors： Cardenosa G,Eklund GW

更新日期：1991-09-01 00:00:00

abstract：:A survey was carried out in 40 patients with cystic fibrosis to determine how many of them showed evidence of pulmonary hypertrophic osteoarthropathy (PHOA) and whether pulmonary function abnormalities, sputum cultures, or a history of joint or bone symptoms could be used to aid in its diagnosis. This survey indicates...

journal_title：Radiology

authors： Nathanson I,Riddlesberger MM Jr

更新日期：1980-06-01 00:00:00

abstract：:In five patients undergoing magnetic resonance imaging of the knee after athletic injuries, the authors identified a vacuum phenomenon that simulated medial meniscal or joint compartment cartilaginous abnormality. A cadaveric knee was injected with air, and the findings were re-created. The presence of air or gas betw...

journal_title：Radiology

authors： Shogry ME,Pope TL Jr

更新日期：1991-08-01 00:00:00

abstract：PURPOSE:To prospectively evaluate the feasibility and clinical value of computed tomography (CT)-guided iodine 125 ((125)I) brachytherapy to treat bilateral lung recurrences from colorectal carcinoma. MATERIALS AND METHODS:This study was approved by Sun Yat-sen University Cancer Center Institutional Review Board and a...

journal_title：Radiology

authors： Wang G,Zhang F,Yang B,Xue J,Peng S,Zhong Z,Zhang T,Lu M,Gao F

更新日期：2016-03-01 00:00:00

abstract：:It has recently been suggested that the resistive index (RI) in native kidneys of healthy children is age dependent; however, this relationship has not been completely defined or explained. In 110 kidneys in 71 healthy children aged newborn to 11 years, RIs were determined from peripheral sites (presumed to be arcuate...

journal_title：Radiology

authors： Bude RO,DiPietro MA,Platt JF,Rubin JM,Miesowicz S,Lundquist C

更新日期：1992-08-01 00:00:00

abstract：:Gas within embolized, uninfected tumors has been ascribed to either carbon dioxide produced through anaerobic reticulocyte metabolism or oxygen release from oxyhemoglobin. An alternative hypothesis explaining the presence of gas within embolized, uninfected tumors, namely, that gas is introduced during the embolizatio...

journal_title：Radiology

authors： Carroll BA,Walter JF

更新日期：1983-05-01 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

authors： Tadavarthy SM,Castaneda-Zuniga W,Salomonowitz E,Lund G,Cragg A,Hunter D,Coleman C,Amplatz K

更新日期：1984-05-01 00:00:00

abstract：:Least-squares regression analysis was computerized to provide functional color images of myocardial perfusion patterns. In 8 of the 9 patients studied, changes in pattern indicated that the revascularization procedure speeded the appearance time and/or net rate of 43K uptake. The functional images correlated well with...

journal_title：Radiology

authors： Smith RO,Bennett KR,Suzuki A,Lehan PH,Hellems HK

更新日期：1975-01-01 00:00:00

abstract：:The negative predictive value (PV-) and positive predictive value (PV+) of gallium-67 scintigraphy and computed tomography (CT) were compared after treatment in 43 patients with Hodgkin disease and in 56 patients with non-Hodgkin lymphoma. The usefulness of these studies in predicting survival was also evaluated. In p...

journal_title：Radiology

authors： Front D,Ben-Haim S,Israel O,Epelbaum R,Haim N,Even-Sapir E,Kolodny GM,Robinson E

更新日期：1992-02-01 00:00:00

abstract：:The pulmonary manifestations of blastomycosis were observed in 51 patients and correlated with their location in the lungs and the clinical appearance of the patient. Blastomycosis is primarily an airbone infection that occurs in both acute and chronic forms and follows a specific pathway within the lungs. It must be ...

journal_title：Radiology

authors： Rabinowitz JG,Busch J,Buttram WR

更新日期：1976-07-01 00:00:00

abstract：:Prototype surface coil magnetic resonance (MR) images were obtained from phantoms and 42 subjects at 0.6 T to assess the feasibility of imaging relatively deep abdominal structures. Surface coil images demonstrated a two- to fourfold improvement in signal-to-noise ratio (SNR) when compared with whole-body coil images ...

journal_title：Radiology

authors： Edelman RR,McFarland E,Stark DD,Ferrucci JT Jr,Simeone JF,Wismer G,White EM,Rosen BR,Brady TJ

更新日期：1985-11-01 00:00:00

abstract：:To explore the usefulness of intraluminal ultrasound (US) for diagnostic imaging of the female urethra, 22 female patients with different degrees of urinary incontinence and 10 female patients with normal continence underwent examination by means of a 20-MHz intravascular US system. Contiguous sections were used for t...

journal_title：Radiology

authors： Klein HM,Kirschner-Hermanns R,Lagunilla J,Günther RW

更新日期：1993-04-01 00:00:00

abstract：PURPOSE:To examine whether the different appearances of intramedullary high signal intensity (SI) on T2-weighted MR images in cervical spondylotic myelopathy are related to differences in surgical prognosis. MATERIALS AND METHODS:The magnetic resonance (MR) findings and Japanese Orthopedic Association (JOA) score of 6...

journal_title：Radiology

authors： Chen CJ,Lyu RK,Lee ST,Wong YC,Wang LJ

更新日期：2001-12-01 00:00:00

abstract：PURPOSE:To evaluate positron emission tomography (PET) with fluorine-18-labeled fluorodeoxyglucose (FDG) for detection of pancreatic cancer compared with computed tomography (CT) and ultrasonography (US). MATERIALS AND METHODS:Forty patients with suspected pancreatic cancer underwent static PET after intravenous injec...

journal_title：Radiology

authors： Bares R,Klever P,Hauptmann S,Hellwig D,Fass J,Cremerius U,Schumpelick V,Mittermayer C,Büll U

更新日期：1994-07-01 00:00:00

abstract：PURPOSE:To detect regional metabolic differences in amyotrophic lateral sclerosis (ALS) with whole-brain echo-planar spectroscopic imaging. MATERIALS AND METHODS:Sixteen patients with ALS (nine men, seven women; mean age, 56.6 years), five persons suspected of having ALS (four men, one woman; mean age, 62.6 years), an...

journal_title：Radiology

authors： Verma G,Woo JH,Chawla S,Wang S,Sheriff S,Elman LB,McCluskey LF,Grossman M,Melhem ER,Maudsley AA,Poptani H

更新日期：2013-06-01 00:00:00

abstract：PURPOSE:To evaluate by using in vivo magnetic resonance (MR) imaging the functionality of a liposomal paramagnetic contrast agent with T1 relaxivity that rapidly and markedly increases at temperatures above the gel-to-liquid crystalline phase transition temperature (T(c)) of the liposome membrane. MATERIALS AND METHOD...

journal_title：Radiology

authors： McDannold N,Fossheim SL,Rasmussen H,Martin H,Vykhodtseva N,Hynynen K

更新日期：2004-03-01 00:00:00