Semiautomated ROI analysis in dynamic MR studies. Part II: Application to renal function examination.

Abstract:

:Fast MR techniques and the application of water-soluble contrast agents allow the simultaneous examination of renal morphology and the functional aspects of glomerular filtration using bolus injections of Gd-DTPA. Spatial resolution is sufficient to resolve individual renal pyramids, but the quantitative examination of regions of interest (ROIs) is severely impeded by organ movements due to variations of the end-inspiratory position. A new image-processing scheme has been used and tested in 23 normal volunteers and patients. This scheme replaces a tedious frame-by-frame ROI analysis by positional correction of renal regions of all frames of the sequence such that the definition of the regions has to be performed only once. The signal intensities (SIs) of the local regions in each frame are used to compute statistics and to generate curves representing local temporal SI changes due to contrast agent excretion. The success rate of the procedure depends largely on the image quality and on the adherence to a proved acquisition protocol. The present article shows that the combination of MR and robust and reliable image-processing methods can be important for the highly automated analysis of a large number of images acquired as dynamic studies.

journal_name

J Comput Assist Tomogr

authors

von Schulthess GK,Kuoni W,Gerig G,Wüthrich R,Duewell S,Krestin G

doi

10.1097/00004728-199109000-00002

subject

Has Abstract

pub_date

1991-09-01 00:00:00

pages

733-41

issue

5

eissn

0363-8715

issn

1532-3145

journal_volume

15

pub_type

杂志文章
  • CT appearance of generalized von Recklinghausen neurofibromatosis.

    abstract::Two cases of von Recklinghausen neurofibromatosis (VRN) with thoracic and abdominal involvement are described. Computed tomography demonstrated the typical lesions of this disease: meningoceles, neurofibromas, and skeletal alterations. In both cases lesion morphology and location were similar and characteristic, in pa...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198310000-00021

    authors: Biondetti PR,Vigo M,Fiore D,De Faveri D,Ravasini R,Benedetti L

    更新日期:1983-10-01 00:00:00

  • MR appearance of sternal hyperostosis.

    abstract::Sternal hyperostosis is characterized by prominent new bone formation and fibrosis with less pronounced areas of granulation tissue and round cell infiltration. In previously reported cases the process involved not only the sternum but adjacent bony areas as well. Depending upon the extent of disease, acquiring biopsy...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199001000-00028

    authors: Bechtold RE,Karstaedt N,Wolfman NT

    更新日期:1990-01-01 00:00:00

  • Demonstration of CT hyperdensity in patients with acute renal failure associated with rhabdomyolysis.

    abstract::Abnormal hyperdensity consistent with skeletal muscle calcification was shown by CT in four of eight (50%) patients with rhabdomyolysis. This finding correlated significantly with antecedent hypocalcemia (p = 0.01) and renal insufficiency (p = 0.03). In patients with rhabdomyolysis, CT can show abnormal skeletal muscl...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199105000-00021

    authors: Russ PD,Dillingham M

    更新日期:1991-05-01 00:00:00

  • T2-weighted magnetic resonance imaging of the liver: evaluation of the effect in signal intensity after Gd-EOB-DTPA enhancement.

    abstract:OBJECTIVE:To evaluate the effect of gadolinium ethoxybenzyl diethylenetriaminepentaacetic acid (Gd-EOB-DTPA) on T2-weighted magnetic resonance imaging of liver parenchyma. METHODS:Forty-six patients with suspected hepatic tumors (group 1) underwent breath-hold T2-weighted fast spin echo imaging before and after 4 minu...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0b013e3181bc961b

    authors: Tamada T,Ito K,Yoshida K,Sone T,Murakami K,Kanki A,Watanabe S,Higashi H,Yamashita T

    更新日期:2010-03-01 00:00:00

  • Invasive carcinomas derived from intraductal papillary mucinous neoplasms of the pancreas: a long-term follow-up assessment with CT imaging.

    abstract:OBJECTIVE:To describe computed tomography (CT) findings of invasive carcinoma derived from intraductal papillary mucinous neoplasms (IPMNs) of the pancreas during long-term follow-up. METHODS:Follow-up CT findings of 5 patients with IPMNs progressing to invasive carcinomas were respectively reviewed for 12 to 63 month...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/01.rct.0000220801.76276.0f

    authors: Yamada Y,Mori H,Matsumoto S,Kamei N,Hongo N

    更新日期:2006-11-01 00:00:00

  • Clinical and experimental investigation of pseudoaneurysm in the anterior communicating artery area on 3-dimensional time-of-flight cerebral magnetic resonance angiography.

    abstract:OBJECTIVE:To investigate the hemodynamic mechanism of pseudoaneurysm in the anterior communicating artery (AcoA) area in magnetic resonance (MR) angiography. METHODS:For the clinical study, a total of 62 patients who undertook digital subtraction angiography (DSA) because of the rupture of an aneurysm originating from...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-200405000-00019

    authors: Chung TS,Lee YJ,Kang WS,Kang SK,Rhim YC,Yoo BG,Park IK

    更新日期:2004-05-01 00:00:00

  • Congested deep subcortical veins as a sign of dural venous thrombosis: MR and CT correlations.

    abstract::Dural venous thrombosis can have a rapidly progressive fatal course if unrecognized; its clinical picture is often confusing. Numerous CT, magnetic resonance (MR), and angiographic findings have been described to help recognize this entity. We present a case of dilated transcerebral medullary veins as a sign of superi...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198711000-00028

    authors: Anderson SC,Shah CP,Murtagh FR

    更新日期:1987-11-01 00:00:00

  • Unenhanced respiratory-gated magnetic resonance angiography (MRA) of renal artery in hypertensive patients using true fast imaging with steady-state precession technique compared with contrast-enhanced MRA.

    abstract:OBJECTIVE:This study was aimed to evaluate the accuracy of "True Fast Imaging with Steady-State Precession" (TrueFISP) MR angiography (MRA) for diagnosis of renal arterial stenosis (RAS) in hypertensive patients. METHODS:Twenty-two patients underwent both TrueFISP MRA and contrast-enhanced MRA (CE-MRA) on a 1.5-T MR i...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章,随机对照试验

    doi:10.1097/RCT.0000000000000094

    authors: Zhang W,Lin J,Wang S,Lv P,Wang L,Liu H,Chen C,Zeng M

    更新日期:2014-09-01 00:00:00

  • Intrahepatic Splenosis: Incidental Liver Lesion after Splenectomy.

    abstract::We describe the case of a 50-year-old man with history of remote splenectomy who underwent routine lung cancer screening chest computed tomography and was incidentally found to have a liver lesion. Dedicated liver protocol computed tomography demonstrated "archiform" enhancement pattern in the arterial phase and homog...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0000000000000762

    authors: Varghese J,Bergson J,Yaipen O

    更新日期:2018-09-01 00:00:00

  • MR imaging of spinal cord hemangioblastoma associated with syringomyelia.

    abstract::A case of isolated spinal cord hemangioblastoma with associated extensive syringohydromyelia, which was evaluated by myelography, postmyelographic CT, magnetic resonance (MR), and angiography is presented. The specific preoperative and postoperative advantages of MR are given as well as a brief review of the literatur...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198805010-00028

    authors: Kaffenberger DA,Shah CP,Murtagh FR,Wilson C,Silbiger ML

    更新日期:1988-05-01 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

  • Intraureteral tumor demonstrated by computed tomography.

    abstract::Two cases of papillary carcinoma of the bladder are presented in which the ureter could not be demonstrated by standard radiographic techniques. Computed tomography (CT) allowed identification of the tumor filled ureter. Intraureteral papillary tumor has a radiographic density (CT number) above that of water but less ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-197908000-00007

    authors: Ryan KG,Hoch WH,Craven RM

    更新日期:1979-08-01 00:00:00

  • High-field MR imaging of superficial siderosis of the central nervous system.

    abstract::A case of superficial siderosis of the central nervous system secondary to bleeding from an ependymoma is presented. High-field magnetic resonance imaging showed marginal hypointensity of the cervical cord, medulla oblongata, pons, mesencephalon, anterior cerebellar and basal cerebral surfaces, and cranial nerves (II,...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198509000-00029

    authors: Gomori JM,Grossman RI,Bilaniuk LT,Zimmerman RA,Goldberg HI

    更新日期:1985-09-01 00:00:00

  • Recognition of gas in gallstones in routine computed tomograms of the abdomen.

    abstract::In a consecutive group of 1,067 noncholecystectomized patients referred for computed tomography including the upper abdomen, gallstones were seen in 13%. In 4% of the patients with gallstones, gas-containing calculi were found. On reviewing the conventional plain films such stones were revealed in less than one-half o...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198310000-00009

    authors: Fork FT,Nyman U,Sigurjonsson S

    更新日期:1983-10-01 00:00:00

  • Distal lower extremity imaging: prospective comparison of 2-dimensional time of flight, 3-dimensional time-resolved contrast-enhanced magnetic resonance angiography, and 3-dimensional bolus chase contrast-enhanced magnetic resonance angiography.

    abstract:OBJECTIVE:To compare the 2-dimensional time of flight, the 3-dimensional time-resolved contrast-enhanced magnetic resonance (MR) angiography, and the 3-dimensional 3-station bolus chase contrast-enhanced MR angiography in assessing distal station atherosclerosis. METHODS:Two-dimensional time of flight, 3-dimensional t...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/01.rct.0000235073.72926.4d

    authors: Hahn WY,Hecht EM,Friedman B,Babb JS,Jacobowitz GR,Lee VS

    更新日期:2007-01-01 00:00:00

  • Central dot sign on CT of liver cysts.

    abstract::The central dot sign on CT in Caroli disease has been described previously. We describe a patient with the central dot sign who had periductal cysts but did not have Caroli disease. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199011000-00034

    authors: Herman TE,Siegel MJ

    更新日期:1990-11-01 00:00:00

  • Combined hepatocellular and cholangiocarcinoma: correlation between CT findings and clinicopathological features.

    abstract:PURPOSE:The purpose of this study was to clarify characteristics of combined hepatocellular and cholangiocarcinoma (HCC-CC) on CT and clinicopathological examinations. METHODS:Dynamic incremental CT was performed on 15 combined HCC-CC patients. CT of the early phase was started at 30 s and of the late phase at 120-140...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199701000-00011

    authors: Fukukura Y,Taguchi J,Nakashima O,Wada Y,Kojiro M

    更新日期:1997-01-01 00:00:00

  • Multidetector-row computed tomographic angiography of thoracic and abdominal aortic aneurysms: comparison of arterial enhancement with 3 different doses of contrast material.

    abstract:OBJECTIVE:To compare the quality of multidetector-row computed tomographic angiography in patients with and without aortic aneurysms by 3 different amounts of contrast media (CM). METHODS:A total of 115 patients with aortic aneurysms were divided into 3 groups: group A, 100 mL CM; group B, 75 mL CM with 20 mL saline f...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/01.rct.0000237819.64419.d2

    authors: Kubo S,Tadamura E,Yamamuro M,Kanao S,Kataoka ML,Takahashi M,Kimura T,Kita T,Komeda M,Togashi K

    更新日期:2007-05-01 00:00:00

  • Differential diagnosis of benign or malignant intraductal papillary mucinous neoplasm of the pancreas by multidetector row helical computed tomography: evaluation of predictive factors by logistic regression analysis.

    abstract:OBJECTIVE:The purpose of this study is to evaluate predictive factors for discriminating benign from malignant intraductal mucin-producing neoplasm (IPMN) of the pancreas on multidetector row computed tomography (MDCT). MATERIALS AND METHODS:Fifty-three patients with IPMN underwent MDCT, and the imaging and pathologic...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0b013e3180676d97

    authors: Takeshita K,Kutomi K,Takada K,Haruyama T,Fukushima J,Aida R,Takada T,Furui S

    更新日期:2008-03-01 00:00:00

  • Narrow superior mediastinum and pseudomasses: CT features.

    abstract::The authors report three cases of abnormal chest radiography mimicking mediastinal masses. These radiographic findings were unrelated to any pathology, were discovered in asymptomatic patients, and must be considered consequences of unusually narrow thoracic inlets. Mean and standard deviations of the anteroposterior ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198607000-00011

    authors: Jardin M,Lemaitre L,Remy J

    更新日期:1986-07-01 00:00:00

  • Biplane computed tomography of intracranial meningiomas with extracranial extension.

    abstract::Fifteen of 130 intracranial meningiomas evaluated by biplane computed tomography (CT)--axial transverse and coronal--were found to have direct extracranial extension. These include five pterional meningiomas en plaque with extension to the orbit and temporal fossa; three subfrontal meningiomas invading the paranasal s...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-198008000-00014

    authors: Nakagawa H,Lusins JO

    更新日期:1980-08-01 00:00:00

  • Posterior reversible encephalopathy syndrome (PRES) with immune system activation, VEGF up-regulation, and cerebral amyloid angiopathy.

    abstract::The case of a 75-year-old man with a history of lymphoma, recent upper respiratory tract infection, and a protracted course of encephalopathy is presented. Radiologically, findings were consistent with posterior reversible encephalopathy syndrome. A brain biopsy revealed evidence of endothelial activation, T-cell traf...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0b013e3181f31917

    authors: Kofler J,Bartynski WS,Reynolds TQ,Lieberman FS,Murdoch GH,Hamilton RL

    更新日期:2011-01-01 00:00:00

  • Quantitation in positron emission computed tomography: 2. Effects of inaccurate attenuation correction.

    abstract::Effects of inaccurate attenuation correction on quantitation in positron emission computed tomography were investigated by both computer simulation and theoretical analysis, followed by experimental verification with phantom measurements. It was found that, due to the finite width of detector responses, compensation o...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:

    authors: Huang SC,Hoffman EJ,Phelps ME,Kuhl DE

    更新日期:1979-12-01 00:00:00

  • Head and neck reconstruction with pectoralis major myocutaneous flap: CT evaluation.

    abstract::Sixty-one CT scans in 20 patients who had undergone head and neck reconstructive surgery using a pectoralis major myocutaneous (PM-MC) flap were retrospectively evaluated to assess the usefulness of Ct in the follow-up of these patients. The normal CT findings in patients with PM-MC flaps are described. Of 13 cases wi...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199003000-00024

    authors: Ohgi K,Kohno A,Itabashi K,Ohkubo Y,Takahashi E,Harasawa A,Kawai C,Suzuki K,Narimatsu A,Shigeta A

    更新日期:1990-03-01 00:00:00

  • Baseline Cartilage Thickness and Meniscus Extrusion Predict Longitudinal Cartilage Loss by Quantitative Magnetic Resonance Imaging: Data From the Osteoarthritis Initiative.

    abstract:OBJECTIVE:This study aimed to assess how meniscus damage and baseline cartilage thickness influence the rate of cartilage loss and knee pain. METHODS:Of 4796 participants in the Osteoarthritis Initiative, 86 had baseline and 48-month follow-up quantitative magnetic resonance imaging data for medial compartment cartila...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章,多中心研究

    doi:10.1097/RCT.0000000000000464

    authors: Klein JS,Jose J,Baraga MG,Subhawong TK

    更新日期:2016-11-01 00:00:00

  • Computer assisted tomography of normal suprarenal glands.

    abstract::The anatomy of 60 right and 80 left normal suprarenal (adrenal) glands in 90 patients was studied. In the transaxial view, the glands have a triradiate shape, which varies on serial sections. The medial posterior limbs of each gland were visualized on the more cranial sections. The transaxial positions of the glands a...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-197801000-00001

    authors: Brownlie K,Kreel L

    更新日期:1978-01-01 00:00:00

  • CT of the normal appendix.

    abstract::We conducted a prospective evaluation of the normal vermiform appendix in 203 patients. Conventional CT techniques were utilized with an 8 mm slice thickness and 10 mm slice interval. The normal appendix was definitely identified in 51% of the patients studied. Computed tomographic appearance of the normal appendix is...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/00004728-199107000-00009

    authors: Grosskreutz S,Goff WB 2nd,Balsara Z,Burkhard TK

    更新日期:1991-07-01 00:00:00

  • Multidetector computed tomography and blunt thoracoabdominal trauma.

    abstract::Computed tomography has had an increasing role in the evaluation of patients after blunt trauma. Important findings in thoracic trauma include acute traumatic aortic injury, pneumothorax, hemothorax, pulmonary contusions and lacerations, mediastinal hematoma, and diaphragmatic rupture. The solid abdominal viscera may ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章,评审

    doi:10.1097/01.rct.0000120858.80935.59

    authors: Mullinix AJ,Foley WD

    更新日期:2004-07-01 00:00:00

  • Comely Wenuhotep: computed tomography of an Egyptian mummy.

    abstract::Computed tomography circumvents many of the problems encountered in the traditional radiographic investigation of mummies. This case report demonstrates that CT provides an improved evaluation of mummification techniques and bony pathology as well as a better capability of characterizing preserved soft tissue. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 历史文章,杂志文章

    doi:

    authors: Vahey T,Brown D

    更新日期:1984-10-01 00:00:00

  • Posterior reversible encephalopathy syndrome and cerebral vasculopathy associated with influenza A infection: report of a case and review of the literature.

    abstract:BACKGROUND AND PURPOSE:Influenza A infection can precipitate encephalopathy, encephalitis, or Reye syndrome with the development of cerebral edema in children and is associated with an increased incidence of stroke in adults. The mechanism of these events is poorly understood. Posterior reversible encephalopathy syndro...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章

    doi:10.1097/RCT.0b013e3181993a43

    authors: Bartynski WS,Upadhyaya AR,Boardman JF

    更新日期:2009-11-01 00:00:00