Blood flow in coronary artery bypass vein grafts: volume versus velocity at cardiovascular MR imaging.


:Forty-nine patients with previous bypass surgery underwent coronary angiography and cardiovascular magnetic resonance (MR) imaging of single-vein bypass grafts. Volume flow and velocity analyses were performed and compared on MR velocity maps. Bland-Altman analysis showed close agreement between the two types of analysis. Comparison of areas under the receiver operating characteristic curve revealed no significant differences between the analyses for detection of stenoses of 70% or greater. Diagnostic accuracy for volume flow and velocity parameters was 92% and 93%, respectively. Velocity analysis appears to be the preferred method, because it is less time-consuming and has a similar diagnostic accuracy to volume flow analysis.






Salm LP,Langerak SE,Vliegen HW,Jukema JW,Bax JJ,Zwinderman AH,van der Wall EE,de Roos A,Lamb HJ




Has Abstract


2004-09-01 00:00:00














  • Neurologic status in infants treated with extracorporeal membrane oxygenation: correlation of imaging findings with developmental outcome.

    abstract::A retrospective review was done of intracranial images obtained within the newborn period in 46 infants who had been treated with extracorporeal membrane oxygenation (ECMO). A neuroimaging score was determined on the basis of the extent and severity of findings on both ultrasound and computed tomographic scans. Presen...


    pub_type: 杂志文章


    authors: Taylor GA,Glass P,Fitz CR,Miller MK

    更新日期:1987-12-01 00:00:00

  • Base-of-tongue cancer treated with external beam irradiation plus brachytherapy: oncologic and functional outcome.

    abstract::Between January 1981 and June 1990, 36 previously untreated patients with squamous cancer of the base of the tongue were treated with radiation therapy. This therapy consisted of a 5,000-5,400-cGy external beam plus a 2,000-3,000-cGy boost to the base of the tongue with an iridium-192 implant. Necks with negative node...


    pub_type: 杂志文章


    authors: Harrison LB,Zelefsky MJ,Sessions RB,Fass DE,Armstrong JG,Pfister DG,Strong EW

    更新日期:1992-07-01 00:00:00

  • Hepatic lesion detection: comparison of MR imaging after the administration of superparamagnetic iron oxide with dual-phase CT by using alternative-free response receiver operating characteristic analysis.

    abstract:PURPOSE:To compare the performance of magnetic resonance (MR) imaging after the administration of superparamagnetic iron oxide (SPIO) and dual-phase computed tomography (CT) in the depiction of liver metastases. MATERIALS AND METHODS:Fifty-one hepatic resection candidates with known colorectal metastases were examined...


    pub_type: 杂志文章


    authors: Ward J,Naik KS,Guthrie JA,Wilson D,Robinson PJ

    更新日期:1999-02-01 00:00:00

  • Assessment of multiple sclerosis lesions with spherical harmonics: comparison of MR imaging and pathologic findings.

    abstract::Spherical harmonics (SH) were used to approximate the volume and three-dimensional geometry of multiple sclerosis (MS) lesions in deceased patients. The institutional ethical committee does not require its approval for studies involving pathologic specimens. Pathologic findings were used as the reference standard. In ...


    pub_type: 杂志文章


    authors: Goldberg-Zimring D,Shalmon B,Zou KH,Azhari H,Nass D,Achiron A

    更新日期:2005-06-01 00:00:00

  • Gynecomastoid hyperplasia: imaging findings in six patients.

    abstract::This case series describes the radiologic appearances of gynecomastoid hyperplasia of the breast in our experience. The clinical histories, breast images, and histopathologic findings in six women were reviewed. At mammography, there was no abnormality in two women, an enlarging asymmetric density in three women, and ...


    pub_type: 杂志文章


    authors: Selland DL,Korbin CD,Lester SC,Lerner MH,Gulizia JA,Kaelin CM,Meyer JE

    更新日期:2000-02-01 00:00:00

  • Sonoelastography of the Common Flexor Tendon of the Elbow with Histologic Agreement: A Cadaveric Study.

    abstract::Purpose To determine the correlation of the results of conventional B-mode ultrasonography (US) and compression sonoelastography with histologic results in common flexor tendons of the elbow in human cadavers. Materials and Methods Twenty-five common flexor tendons were evaluated in 16 fresh, unembalmed cadavers of 11...


    pub_type: 杂志文章


    authors: Klauser AS,Pamminger MJ,Halpern EJ,Abd Ellah MMH,Moriggl B,Taljanovic MS,Deml C,Sztankay J,Klima G,Gruber L,Jaschke WR

    更新日期:2017-05-01 00:00:00

  • Solid breast lesions: clinical experience with US-guided diffuse optical tomography combined with conventional US.

    abstract:PURPOSE:To prospectively investigate the clinical efficacy of using diffuse optical tomography (DOT) and ultrasonographic (US) localization with conventional US to differentiate malignant solid breast lesions from those that are benign. MATERIALS AND METHODS:The study was approved by the institutional review board and...


    pub_type: 杂志文章


    authors: Zhi W,Gu X,Qin J,Yin P,Sheng X,Gao SP,Li Q

    更新日期:2012-11-01 00:00:00

  • Acute pulmonary embolism: ancillary findings at spiral CT.

    abstract:PURPOSE:To determine the value of parenchymal findings at contrast material-enhanced spiral computed tomography (CT) in patients suspected to have pulmonary embolism (PE). MATERIALS AND METHODS:Eighty-eight patients suspected to have PE underwent contrast-enhanced spiral CT and ventilation-perfusion scintigraphy. Conc...


    pub_type: 杂志文章


    authors: Coche EE,Müller NL,Kim KI,Wiggs BR,Mayo JR

    更新日期:1998-06-01 00:00:00

  • Brodie abscess: reappraisal.

    abstract::Upon review, 25 cases of Brodie abscess demonstrated a radiological spectrum not previously appreciated. One third of the lesions were diaphyseal in location, and 50% had associated cortical thickening, while 40% showed a stimulated periosteal reaction, and 20% contained sequestra. The variable radiological appearance...


    pub_type: 杂志文章


    authors: Miller WB Jr,Murphy WA,Gilula LA

    更新日期:1979-07-01 00:00:00

  • Subtraction radiography: techniques and limitations.

    abstract::Subtraction radiography permits the use of 7-10 times less contrast material than is required without subtraction techniques. The first-order, second-order, and composite mask techniques are described and evaluated. While the second-order technique gives more complete cancellation of common structures, the more common...


    pub_type: 杂志文章


    authors: Ort MG,Gregg EC,Kaufman B

    更新日期:1977-07-01 00:00:00

  • Evaluation of an active vena cava filter for MR imaging in a swine model.

    abstract:PURPOSE:To evaluate the feasibility of magnetic resonance (MR) imaging-guided placement of an active vena cava filter (AVCF) in a swine model, the effectiveness of the system in filtering thrombi, and the detection of thrombi with MR imaging. MATERIALS AND METHODS:This study was approved by the government committee on...


    pub_type: 杂志文章


    authors: Kraemer NA,Immel E,Donker HC,Melzer A,Ocklenburg C,Guenther RW,Buecker A,Krombach GA,Spuentrup E

    更新日期:2011-02-01 00:00:00

  • Pachygyriclike changes: topographic appearance at MR imaging and CT and correlation with neurologic status.

    abstract::Studies of 23 pediatric patients with pachygyriclike changes (PLCs) examined with computed tomography (CT) and magnetic resonance (MR) imaging were reviewed to determine topographic patterns and correlate them with various clinical syndromes and degrees of neurologic impairment. Three types of topographic distribution...


    pub_type: 杂志文章


    authors: Titelbaum DS,Hayward JC,Zimmerman RA

    更新日期:1989-12-01 00:00:00

  • Thoracic aorta: comparison of gadolinium-enhanced three-dimensional MR angiography with conventional MR imaging.

    abstract:PURPOSE:To evaluate gadolinium-enhanced three-dimensional magnetic resonance (MR) angiography for thoracic aortic disease and to compare this technique with conventional thoracic MR imaging. MATERIALS AND METHODS:One hundred eight consecutive patients underwent 122 thoracic MR examinations, including conventional MR i...


    pub_type: 杂志文章


    authors: Krinsky GA,Rofsky NM,DeCorato DR,Weinreb JC,Earls JP,Flyer MA,Galloway AC,Colvin SB

    更新日期:1997-01-01 00:00:00

  • Occlusion of biliary endoprostheses: presentation and management.

    abstract::A retrospective review of 20 cases of endoprosthesis occlusion in 17 patients was performed. The average length of stent patency before occlusion was 3.7 months. Clinical manifestations included one or a combination of the following: cholangitis (n = 17), jaundice (n = 9), and leakage of bile or purulent material from...


    pub_type: 杂志文章


    authors: Lee MJ,Mueller PR,Saini S,Morrison MC,Brink JA,Hahn PF

    更新日期:1990-08-01 00:00:00

  • Craniosynostosis: correlation of bone scans, radiographs, and surgical findings.

    abstract::Skull scintigraphy was performed in 68 children with suspected craniosynostosis after injection of technetium-99m methylene diphosphonate. The scans demonstrated four patterns of sutural activity: normal, absent, increased, and wide. When correlated with surgical findings, "absent" indicated fused sutures, "increased"...


    pub_type: 杂志文章


    authors: Tait MV,Gilday DL,Ash JM,Boldt DJ,Harwood-Nash DC,Fitz CR,Barry J

    更新日期:1979-12-01 00:00:00

  • Hypointense renal cell carcinoma: MR imaging with pathologic correlation.

    abstract::In two pathologically documented cases of renal cell carcinoma, the appearance of the tumors at magnetic resonance (MR) imaging was markedly hypointense relative to normal renal parenchyma on both T1- and T2-weighted spin-echo images. Pathologic examination of both tumors revealed diffuse iron scattered throughout the...


    pub_type: 杂志文章


    authors: Sussman SK,Glickstein MF,Krzymowski GA

    更新日期:1990-11-01 00:00:00

  • Placental implantation on the amniotic sheet: effect on pregnancy outcome.

    abstract:PURPOSE:To assess pregnancy outcome in patients with amniotic sheets and to determine whether outcome is affected by placental implantation on the amniotic sheet. MATERIALS AND METHODS:Sonograms obtained during the 2nd and 3rd trimesters were reviewed in 157 patients with amniotic sheets to confirm the presence of an ...


    pub_type: 杂志文章


    authors: Korbin CD,Benson CB,Doubilet PM

    更新日期:1998-03-01 00:00:00

  • Vertebral-body collapse in focal and diffuse disease: patterns of pathologic processes.

    abstract::The radiographic patterns of vertebral-body collapse and/or endplate deformity were examined in 99 autopsy specimens of the thoracolumbar spine with benign and malignant disease. Angling of endplates was found to be highly predictive of underlying malignancy, whereas concavity was more suggestive of benign disease, fo...


    pub_type: 杂志文章


    authors: Sartoris DJ,Clopton P,Nemcek A,Dowd C,Resnick D

    更新日期:1986-08-01 00:00:00

  • Splenic vein thrombosis after splenectomy: frequency and role of imaging.

    abstract:PURPOSE:To assess the frequency of splenic vein thrombosis (SVT) after splenectomy and its consequences on patient treatment. MATERIALS AND METHODS:A group of 183 consecutive patients who underwent splenectomy were evaluated. Of these patients, 119 underwent postoperative ultrasound (US) or computed tomography. RESUL...


    pub_type: 杂志文章


    authors: Petit P,Bret PM,Atri M,Hreno A,Casola G,Gianfelice D

    更新日期:1994-01-01 00:00:00

  • Therapeutic embolization: enhanced radiolabeled monitoring.

    abstract::Radiolabeling of Ivalon (polyvinyl alcohol sponge) particles permits localization of injected particles during embolization through the use of a portable gamma camera and provides a means to prevent potentially fatal complications such as pulmonary embolization. A more efficient technique of labeling Ivalon particles ...


    pub_type: 杂志文章


    authors: duCret RP,Adkins MC,Hunter DW,Yedlicka JW,Engeler CM,Castaneda-Zuniga WR,Amplatz K,Sirr SA,Boudreau RJ,Kuni CC

    更新日期:1990-11-01 00:00:00

  • A pattern recognition method for the removal of streaking artifact in computed tomography.

    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...


    pub_type: 杂志文章


    authors: Morin RL,Raeside DE

    更新日期:1981-10-01 00:00:00

  • Contrast medium precipitation during abdominal CT.

    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...


    pub_type: 杂志文章


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

    更新日期:1986-01-01 00:00:00

  • Prospective versus retrospective ECG-gated 64-detector coronary CT angiography: assessment of image quality, stenosis, and radiation dose.

    abstract:PURPOSE:To show that prospective electrocardiographically (ECG)-triggered coronary computed tomographic (CT) angiography (hereafter, prospective CT angiography) is at least as effective as retrospective ECG-gated coronary CT angiography (hereafter, retrospective CT angiography). MATERIALS AND METHODS:Institutional rev...


    pub_type: 杂志文章,随机对照试验


    authors: Hirai N,Horiguchi J,Fujioka C,Kiguchi M,Yamamoto H,Matsuura N,Kitagawa T,Teragawa H,Kohno N,Ito K

    更新日期:2008-08-01 00:00:00

  • Mammographic halo sign revisited.

    abstract:PURPOSE:To determine whether increased silver halide deposition accounts for some curvilinear areas of hyperlucency (halo signs) that surround breast masses on screen-film mammograms. MATERIALS AND METHODS:Breast images obtained in 43 women (aged 30-67 years; mean, 48.6 years) that showed a halo sign were selected fro...


    pub_type: 杂志文章


    authors: Cupples TE,Eklund GW,Cardenosa G

    更新日期:1996-04-01 00:00:00

  • Acute stroke: evaluation with serial proton MR spectroscopic imaging.

    abstract:PURPOSE:To investigate the evolution of metabolic changes detectable with proton magnetic resonance (MR) spectroscopic imaging in acute stroke and to compare these findings with those of conventional MR imaging. MATERIALS AND METHODS:A patient with middle cerebral artery stroke underwent conventional proton-density (P...


    pub_type: 杂志文章


    authors: Barker PB,Gillard JH,van Zijl PC,Soher BJ,Hanley DF,Agildere AM,Oppenheimer SM,Bryan RN

    更新日期:1994-09-01 00:00:00

  • Correlates of Executive Functions in Multiple Sclerosis Based on Structural and Functional MR Imaging: Insights from a Multicenter Study.

    abstract::Purpose To study the concomitant use of structural and functional magnetic resonance (MR) imaging correlates to explain information processing speed (IPS) and executive function (EF) in multiple sclerosis (MS). Materials and Methods Local ethics committee approval was obtained at all sites for this prospective, multic...


    pub_type: 杂志文章,多中心研究


    authors: Koini M,Filippi M,Rocca MA,Yousry T,Ciccarelli O,Tedeschi G,Gallo A,Ropele S,Valsasina P,Riccitelli G,Damjanovic D,Muhlert N,Mancini L,Fazekas F,Enzinger C,MAGNIMS fMRI Study Group.

    更新日期:2016-09-01 00:00:00

  • Development of the human cerebellum observed with high-field-strength MR imaging.

    abstract::A retrospective study of 160 pediatric subjects, aged 32-410 weeks after conception, was conducted to determine the normal developmental patterns of the human cerebellum by means of magnetic resonance (MR) imaging. On the basis of axial T2-weighted spin-echo images (repetition time, 3,000 msec; echo time, 120 msec), w...


    pub_type: 杂志文章


    authors: Stricker T,Martin E,Boesch C

    更新日期:1990-11-01 00:00:00

  • Detection of Prostate Cancer: Quantitative Multiparametric MR Imaging Models Developed Using Registered Correlative Histopathology.

    abstract::Purpose To develop multiparametric magnetic resonance (MR) imaging models to generate a quantitative, user-independent, voxel-wise composite biomarker score (CBS) for detection of prostate cancer by using coregistered correlative histopathologic results, and to compare performance of CBS-based detection with that of s...


    pub_type: 杂志文章


    authors: Metzger GJ,Kalavagunta C,Spilseth B,Bolan PJ,Li X,Hutter D,Nam JW,Johnson AD,Henriksen JC,Moench L,Konety B,Warlick CA,Schmechel SC,Koopmeiners JS

    更新日期:2016-06-01 00:00:00

  • Quantification of regional cerebral blood flow and volume with dynamic susceptibility contrast-enhanced MR imaging.

    abstract:PURPOSE:Quantification of regional cerebral blood flow (rCBF) and volume (rCBV) with dynamic magnetic resonance (MR) imaging. MATERIALS AND METHODS:After bolus administration of a paramagnetic contrast medium, rapid T2*-weighted gradient-echo images of two sections were acquired for the simultaneous creation of concen...


    pub_type: 杂志文章


    authors: Rempp KA,Brix G,Wenz F,Becker CR,Gückel F,Lorenz WJ

    更新日期:1994-12-01 00:00:00

  • Gastrostomy and gastrojejunostomy tube placements: outcomes in children with gastroschisis, omphalocele, and congenital diaphragmatic hernia.

    abstract:PURPOSE:To retrospectively evaluate the technical success, safety, and outcomes of radiologically guided retrograde percutaneous gastrostomy and gastrojejunostomy tube placements in terms of weight gain and growth in children with gastroschisis, omphalocele, and/or congenital diaphragmatic hernia (CDH). MATERIALS AND ...


    pub_type: 杂志文章


    authors: Rosenberg J,Amaral JG,Sklar CM,Connolly BL,Temple MJ,John P,Chait PG

    更新日期:2008-07-01 00:00:00