Spiral CT evaluation of coronary artery bypass graft patency.

Abstract:

:Spiral CT (SCT) differs from conventional CT in that the entire heart can be rapidly imaged in the axial plane following the peripheral infusion of small quantities of contrast material. As contrast material travels through coronary artery bypass graft segments, good image detail is achieved, allowing visualization of entire coronary artery graft segments during a single injection. The patency of 43 coronary artery bypass grafts in 14 patients on contrast enhanced SCT, with timing tailored to patient-specific transit times, was compared with that obtained by selective graft angiography. With use of 5 or 8 mm/s table feed and 24 s volumetric acquisitions, SCT established graft patency with 85.7% sensitivity and 100% specificity compared to angiographic examination (96.4% sensitivity and 100% specificity). The mean time between angiography and SCT was 2.1 days, with 86% of SCT studies done within 24 h after angiography. The utilization of dynamic scanning to establish the patient-specific time delay prior to initiation of SCT proved crucial in improving the quality and reliability of SCT bypass graft patency assessment. The paired McNemar test indicates no significant difference between angiography and SCT in establishing patency rates.

journal_name

J Comput Assist Tomogr

authors

Tello R,Costello P,Ecker C,Hartnell G

doi

10.1097/00004728-199303000-00014

subject

Has Abstract

pub_date

1993-03-01 00:00:00

pages

253-9

issue

2

eissn

0363-8715

issn

1532-3145

journal_volume

17

pub_type

杂志文章
  • CT findings in partial eventration of the right diaphragm.

    abstract::Elevation of the anterior part of the right diaphragm results in the spurious radiological appearance of a mass at the right lung base. Standard chest views are usually sufficient to show the true nature of the "mass." Occasionally, however, a true mass lesion cannot be entirely excluded, and further studies are then ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198110000-00023

    authors: Rubinstein ZJ,Solomon A

    更新日期:1981-10-01 00:00:00

  • Compartment analysis of contrast enhancement in brain infarctions.

    abstract::Contrast enhancement has been studied with computed tomography in 18 patients with brain infarction. Four patients were examined on more than one occasion. A mode of contrast medium administration has been used that results in constant blood iodine concentration during the investigation. The enhancement pattern was an...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-197904000-00016

    authors: Bergström M,Ericson K

    更新日期:1979-04-01 00:00:00

  • Taste and smell phantoms revealed by brain functional MRI (fMRI).

    abstract:PURPOSE:Our goal was to demonstrate the appearance of phantom tastes and smells (phantageusia and phantosmia, respectively) by use of functional MRI (fMRI) of the brain and to demonstrate the efficacy of drug treatment that inhibited both the subjective presence of these phantoms and the fMRI brain activation initiated...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-200001000-00022

    authors: Henkin RI,Levy LM,Lin CS

    更新日期:2000-01-01 00:00:00

  • Computed tomography evaluation of pelvic organ prolapse. Techniques and applications.

    abstract:OBJECTIVES:Pelvic organ prolapse is a common debilitating condition affecting women. Cross-sectional imaging with magnetic resonance imaging (MRI) depicts pelvic floor anatomy as well as organ prolapse and can complement or replace fluoroscopy. Occasionally, patients cannot tolerate MRI, but multiplanar visualization o...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-200309000-00016

    authors: Pannu HK,Genadry R,Kaufman HS,Fishman EK

    更新日期:2003-09-01 00:00:00

  • Further Improving Image Quality of Cardiovascular Computed Tomography Angiography for Children With High Heart Rates Using Second-Generation Motion Correction Algorithm.

    abstract:BACKGROUND:The state-of-art motion correction algorithm is inadequate for correcting motion artifacts in coronary arteries in cardiovascular computed tomography angiography (CCTA) for children with high heart rates, and even less effective for heart structures beyond coronary arteries. PURPOSE:This study aimed to eval...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0000000000001035

    authors: Sun J,Okerlund D,Cao Y,Li H,Zhu Y,Li J,Peng Y

    更新日期:2020-09-01 00:00:00

  • Attenuation values of fluid collections within the abdomen.

    abstract::In vivo attenuation values of 19 fluid collections in 17 patients were compared with in vitro values obtained on examination of the aspirated fluids within the calibration phantom of an EMI CT5005 body scanner. While the in vitro values showed a 5.2 Hounsfield unit (HU:1,000 scale). difference between cysts and absces...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198004000-00002

    authors: Bydder GM,Kreel L

    更新日期:1980-04-01 00:00:00

  • Transient, severe periventricular hypodensity after leukemic prophylaxis with cranial irradiation and intrathecal methotrexate.

    abstract::Serial computed tomography (CT) demonstrated complete resolution of severe periventricular hypodensity occurring in a child after receiving prophylaxis for acute lymphocytic leukemia. The resolution of this encephalopathy suggests that early changes of subacute necrotizing leukoencephalopathy are reversible and CT is ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-197809000-00023

    authors: Wendling LR,Bleyer WA,Di Chiro G,McIlvanie SK

    更新日期:1978-09-01 00:00:00

  • Automated Segmentation of Head Computed Tomography Images Using FSL.

    abstract:OBJECTIVE:The aim of this study was to investigate the use of one magnetic resonance image-processing tool, FSL, in its ability to perform automated segmentation of computed tomographic images of the brain. METHODS:Head computed tomography (CT) images were brain extracted and segmented using the FSL tools BET and FAST...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0000000000000660

    authors: Cauley KA,Och J,Yorks PJ,Fielden SW

    更新日期:2018-01-01 00:00:00

  • Potential role of MR imaging in the diagnostic management of Ebstein anomaly in a newborn.

    abstract::A case of Ebstein anomaly in a 2-day-old newborn is presented. The complementary roles of two-dimensional Doppler echocardiography and magnetic resonance imaging in managing this cardiac malformation are emphasized. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199009000-00032

    authors: Kastler B,Livolsi A,Zhu H,Roy E,Zollner G,Dietemann JL

    更新日期:1990-09-01 00:00:00

  • Intrahepatic extramedullary hematopoiesis: MR, CT, and sonographic appearance.

    abstract::A 45-year-old patient with focal intrahepatic extramedullary hematopoiesis is presented in which the liver was imaged by CT, ultrasound, and MR. The appearance of the lesions on MR consisted of slightly increased signal on T2-weighted images with heterogeneous enhancement of some of the lesions during bolus infusion o...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:

    authors: Warshauer DM,Schiebler ML

    更新日期:1991-07-01 00:00:00

  • Diagnostic Yield of Computed Tomography-Guided Percutaneous Lung Biopsy in Patients With Prior Nondiagnostic Transbronchial Biopsy.

    abstract:PURPOSE:The purpose of this study was to assess the diagnostic yield of computed tomography (CT)-guided core needle biopsy (CNB) for initial transbronchial biopsy (TBB)-based nondiagnostic lung lesions. METHODS:From January 2014 to December 2017, 101 consecutive patients with initial TBB-based nondiagnostic lung lesio...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0000000000000999

    authors: Li QK,Ding YK,Liu Y,Xia FF,Li L,Fu YF

    更新日期:2020-03-01 00:00:00

  • CT demonstration of portal vein remnant within metastatic liver tumor.

    abstract::We describe a patient with a metastatic liver tumor that showed a cordlike shadow traversing the tumor on CT. Histopathologically, this cordlike shadow within the metastatic liver tumor was proved to be an infiltrated portal vein without blood flow surrounded by fibrous tissue. Vascular structures traversing a focal l...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199501000-00026

    authors: Senda T,Sawada S,Okuda Y,Kobayashi M,Tanigawa N

    更新日期:1995-01-01 00:00:00

  • Computed tomography appearance of ovarian cysts with hyperenhancing rim during the menstrual cycle in women of different ages.

    abstract:OBJECTIVE:To determine the frequency and computed tomography (CT) characteristics of ovarian cysts in women of different ages. METHODS:Five hundred ninety-five contrast-enhanced CT studies performed in 430 females aged 10 or older between January 2001 and December 2006 were retrospectively reviewed. For each study, we...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0b013e3181d658a5

    authors: Shin YM,Lee JK,Turan N,Mauro D,Chong W

    更新日期:2010-07-01 00:00:00

  • Dural ectasia of the optic nerve sheath in neurofibromatosis type 1: CT and MR features.

    abstract:OBJECTIVE:Optic nerve glioma is a common finding in patients with neurofibromatosis type 1 (NF-1). Although dural ectasia of the optic nerve is encountered rarely, it has to be considered in the differential diagnosis. MATERIALS AND METHODS:Three patients affected by NF-1 were examined sequentially by CT and MRI. RES...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199409000-00009

    authors: Lövblad KO,Remonda L,Ozdoba C,Huber P,Schroth G

    更新日期:1994-09-01 00:00:00

  • Occult pneumothorax in patients with abdominal trauma: CT studies.

    abstract::Abdominal CT, which routinely includes the lower thorax, is an important adjunct to supine chest radiography in detecting chest injury in patients with blunt abdominal trauma. In 1,086 consecutive patients with blunt abdominal trauma, 223 of whom had both supine chest radiography and abdominal CT, 49 patients examined...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199301000-00009

    authors: Wolfman NT,Gilpin JW,Bechtold RE,Meredith JW,Ditesheim JA

    更新日期:1993-01-01 00:00:00

  • Computed tomography in the evaluation of abdominal trauma.

    abstract::Four patients with blunt abdominal trauma underwent computed tomography (CT) as part of their diagnostic evaluation. In each case CT accurately demonstrated the pathology and the extent of injury. The results suggest that routine use of CT scanning may be an effective screening modality in the traumatized patient. It ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:

    authors: Druy EM,Rubin BE

    更新日期:1979-02-01 00:00:00

  • Carotid Artery Tortuosity Index Is Associated With the Need for Early Aortic Root Replacement in Patients With Loeys-Dietz Syndrome.

    abstract:OBJECTIVE:This study aimed to determine if carotid arterial tortuosity represents a marker of disease severity in Loeys-Dietz syndrome (LDS). METHODS:Fifty-four 54 LDS patients (mean age, 17.0 years) who underwent computed tomogram angiography from January 2004 to December 2013 were retrospectively identified. Carotid...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0000000000000764

    authors: Chu LC,Haroun RR,Beaulieu RJ,Black JH 3rd,Dietz HC,Fishman EK

    更新日期:2018-09-01 00:00:00

  • Dentition and related anatomy.

    abstract::The anatomy of the teeth and surrounding bony structures is easily illustrated by computed CT image protocols, which produce detailed surface renderings of this complex area. The purpose of this article is to label the dental and bony landmarks of the maxilla, mandible, and palatine bones together with the adjacent re...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-200209000-00035

    authors: Hayman LA,Duncan G,Gordon M,Taber KH

    更新日期:2002-09-01 00:00:00

  • Computed tomography of adrenal abscess.

    abstract::We present a patient with a progressively enlarging adrenal mass detected by CT which extended to the renal hilum and inferior vena cava. Pathologic evaluation revealed an adrenal abscess containing purulent debris. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198705000-00040

    authors: O'Brien WM,Choyke PL,Copeland J,Klappenbach RS,Lynch JH

    更新日期:1987-05-01 00:00:00

  • Unusual pattern of a deep developmental venous anomaly on CT and MR studies.

    abstract:OBJECTIVE:This article focuses on an unusual cross-sectional imaging pattern of a deep developmental venous anomaly (DVA). Since these anomalies are nonpathologic, they must not be interpreted as a disease that requires further costly workup and potentially injurious procedures (cerebral angiography). MATERIALS AND ME...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199511000-00008

    authors: Borden NM,Khayata MH,Dean BL,Flom RA

    更新日期:1995-11-01 00:00:00

  • Comparison of 320-row computed tomography coronary angiography with conventional angiography for the assessment of coronary artery disease with different atherosclerotic plaque characteristics.

    abstract:OBJECTIVE:The objective of this study was to compare the accuracy of 320-row computed tomography angiography (CTA) with conventional coronary angiography. METHODS:Two hundred seventy-four patients with coronary artery disease who received both invasive coronary angiography and 320-row CTA were included. Stenosis of 50...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0b013e31826ab24a

    authors: Yang QH,Chen YJ,Liu QQ,Dong M,Wen L,Song X,Lv YJ,Gong YZ,Li XQ

    更新日期:2012-11-01 00:00:00

  • Peripheral neurofibromatosis.

    abstract::Neurofibromatosis or von Recklinghausen disease usually is a readily diagnosed entity, characterized by typical cutaneous lesions and a strong family history. In a variant of the usual disease, peripheral neurofibromatosis, these stigmata may be absent and accurate diagnosis may be elusive. We present a patient withou...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198304000-00039

    authors: Francis IR,Glazer GM

    更新日期:1983-04-01 00:00:00

  • Poor detection of a hepatoma with a hepatic specific contrast agent (EOE 13).

    abstract::A hepatic specific contrast agent was used in an attempt to detect a biopsy-proven hepatoma. This lesion had been missed by routine computed tomography and was poorly detected with the hepatic specific contrast agent EOE 13. It was also poorly detected by technetium-sulfur colloid hepatic scintigraphy. The true extent...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198310000-00032

    authors: Witrak BJ,Bernardino ME

    更新日期:1983-10-01 00:00:00

  • "Fogging effect" in MR of cerebral infarct.

    abstract::In a case of cerebral infarction the lesions were isointense to slightly hyperintense in the T2-weighted MR images obtained approximately 2 weeks after the onset. Earlier (1 week after onset), they had been markedly hyperintense. The probably mechanisms behind this phenomenon, referred to as "MR fogging" are discussed...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199101000-00029

    authors: Asato R,Okumura R,Konishi J

    更新日期:1991-01-01 00:00:00

  • Susceptibility induced MR line broadening: applications to brain iron mapping.

    abstract::Magnetic susceptibility variations due to the presence of iron in neural tissue can result in a shift of local resonance frequency, decreased T2 resulting from water diffusion through local field gradients, and line broadening due to field inhomogeneity within a voxel. In this study, modified spin echo phase contrast ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198803000-00014

    authors: Wismer GL,Buxton RB,Rosen BR,Fisel CR,Oot RF,Brady TJ,Davis KR

    更新日期:1988-03-01 00:00:00

  • Serial nuclear magnetic resonance (NMR) imaging in patients with cerebral infarction.

    abstract::Seven patients with supratentorial infarction were studied by means of serial nuclear magnetic resonance imaging using saturation recovery (SR) and proton density (PD) sequences. The earliest changes were visible in the more sensitive T1 dependent images (SR) and may reflect the cytotoxic component of ischemic brain e...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:

    authors: Sipponen JT,Kaste M,Ketonen L,Sepponen RE,Katevuo K,Sivula A

    更新日期:1983-08-01 00:00:00

  • Myocardial T2 Mapping in Patients With Hypertrophic Cardiomyopathy.

    abstract:OBJECTIVE:The aim of this study was to evaluate the usefulness of T2 mapping for detecting myocardial injuries in patients with hypertrophic cardiomyopathy (HCM). METHODS:Twenty-one HCM patients and 7 healthy volunteers were examined. The T2 values were measured at hyperintense areas (high-T2 areas) identified with T2...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0000000000000521

    authors: Amano Y,Yanagisawa F,Tachi M,Hashimoto H,Imai S,Kumita S

    更新日期:2017-05-01 00:00:00

  • Assessing human cardiac allograft rejection using MRI with Gd-DOTA.

    abstract::To explore the potential role of MRI in detecting cardiac allograft rejection in transplant recipients using gadolinium tetraazacyclododecane tetraacetic acid (Gd-DOTA) for contrast enhancement, we examined 7 normal healthy volunteers and 39 patients separated into three groups according to histological findings. Quan...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199303000-00012

    authors: Mousseaux E,Farge D,Guillemain R,Bruneval P,Vulser C,Couétil JP,Carpentier A,Gaux JC

    更新日期:1993-03-01 00:00:00

  • Sudden cardiac arrest during computed tomography examination: clinical findings and "dense abdominal veins" on computed tomography.

    abstract::We report imaging findings in five patients who had sudden cardiac arrest during contrast-enhanced computed tomography (CT). We observed strikingly dense abdominal veins, variable degrees of arterial enhancement, and poor abdominal visceral enhancement. Comparison with a control group of 30 patients revealed a statist...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-200301000-00017

    authors: Ko SF,Ng SH,Chen MC,Lee TY,Huang CC,Wan YL

    更新日期:2003-01-01 00:00:00

  • MR imaging of cardiac metastases from malignant fibrous histiocytoma.

    abstract::We present a case of a solitary cardiac metastasis from a malignant fibrous histiocytoma of the scalp. Magnetic resonance imaging improved the preoperative assessment and provided accurate information regarding the extent of the metastatic processes. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198901000-00028

    authors: Lee R,Fisher MR

    更新日期:1989-01-01 00:00:00