当前位置： SCI文献检索 > ACADEMIC RADIOLOGY期刊下所有文献 > Utility of apparent diffusion coefficient ratios in distinguishing common pediatric cerebellar tumors.

Utility of apparent diffusion coefficient ratios in distinguishing common pediatric cerebellar tumors.

Abstract：

RATIONALE AND OBJECTIVES:The aim of this study was to identify clinically useful tumor/normal brain apparent diffusion coefficient (ADC) ratios for distinguishing common pediatric cerebellar tumors. MATERIALS AND METHODS:Review of medical records revealed 79 patients with cerebellar tumors who underwent preoperative magnetic resonance imaging, including diffusion-weighted imaging sequences, and surgery. There were 31 pilocytic astrocytomas, 27 medulloblastomas, 14 ependymomas, and seven atypical teratoid/rhabdoid tumors. ADC values were measured by placing regions of interest on the solid tumor and normal brain parenchyma by two reviewers. Tumor/normal brain ADC ratios were calculated. RESULTS:Mean ADC values of the pilocytic astrocytomas were greater than those of ependymomas, whose mean ADC values were greater than those of medulloblastomas and atypical teratoid/rhabdoid tumors. Using a tumor/normal brain ADC ratio threshold of 1.70 to distinguish pilocytic astrocytomas from ependymomas, sensitivity of 92% and specificity of 79% were achieved. A tumor/normal brain ADC ratio threshold of 1.20 enabled the sorting of ependymomas from medulloblastomas with sensitivity of 93% and specificity of 88%. CONCLUSIONS:Tumor/normal brain ADC ratios allow the distinguishing of common pediatric cerebellar tumors.

journal_name

Acad Radiol

journal_title

Academic radiology

authors

Gimi B,Cederberg K,Derinkuyu B,Gargan L,Koral KM,Bowers DC,Koral K

doi

10.1016/j.acra.2012.03.004

subject

Has Abstract

pub_date

2012-07-01 00:00:00

pages

794-800

issue

7

eissn

1076-6332

issn

1878-4046

pii

S1076-6332(12)00146-8

journal_volume

19

pub_type

杂志文章

相关文献

ACADEMIC RADIOLOGY文献大全
  • Evaluation of the quality of radiology requisitions for intensive care unit patients.

    abstract：RATIONALE AND OBJECTIVES:The study aim is to evaluate the quality of radiology requisitions for plain film radiographs on intensive care unit (ICU) patients. MATERIALS AND METHODS:Radiology requisitions for 58 patients in ICU units at our children's hospital and the corresponding original orders for the study, written...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2005.10.017

    authors： Cohen MD,Curtin S,Lee R

    更新日期：2006-02-01 00:00:00

  • Performance of Diffusion Kurtosis Imaging Versus Diffusion Tensor Imaging in Discriminating Between Benign Tissue, Low and High Gleason Grade Prostate Cancer.

    abstract：RATIONALE AND OBJECTIVES:To investigate the performance of diffusion kurtosis imaging (DKI) and diffusion tensor imaging (DTI) in discriminating benign tissue, low- and high-grade prostate adenocarcinoma (PCa). MATERIALS AND METHODS:Forty-eight patients with biopsy-proven PCa of different Gleason grade (GG), who provi...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2018.11.015

    authors： Di Trani MG,Nezzo M,Caporale AS,De Feo R,Miano R,Mauriello A,Bove P,Manenti G,Capuani S

    更新日期：2019-10-01 00:00:00

  • Imaging Features of Coronavirus disease 2019 (COVID-19): Evaluation on Thin-Section CT.

    abstract：RATIONALE AND OBJECTIVES:To retrospectively analyze the chest imaging findings in patients with coronavirus disease 2019 (COVID-19) on thin-section CT. MATERIALS AND METHODS:Fifty-three patients with confirmed COVID-19 infection underwent thin-section CT examination. Two chest radiologists independently evaluated the ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2020.03.002

    authors： Guan CS,Lv ZB,Yan S,Du YN,Chen H,Wei LG,Xie RM,Chen BD

    更新日期：2020-05-01 00:00:00

  • Optimization of TI values in inversion-recovery MR sequences for the depiction of fine structures within gray and white matter: separation of globus pallidus interna and externa.

    abstract：RATIONALE AND OBJECTIVES:The authors' purpose was to search the inversion time (TI) values that enable the best differentiation of fine structures in gray matter (gray-gray differentiation). MATERIALS AND METHODS:Seven healthy adult volunteers with no history of neurologic disease or head trauma were recruited and gav...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(03)80789-4

    authors： Nakamura H,Yamada K,Kizu O,Ito H,Nishimura T

    更新日期：2003-01-01 00:00:00

  • In vivo evaluation of a fluorine-acryl-stylene-urethane-silicone antithrombogenic coating material copolymer for intravascular stents.

    abstract：RATIONALE AND OBJECTIVES:We evaluated the effectiveness of a fluorine-acryl-styrene-urethane-silicone (FASUS) copolymer as an antithrombogenic coating material for intravascular stents in dogs. METHODS:FASUS copolymer-coated stents were placed in the right iliac veins, and uncoated 304 stainless steel stents were plac...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(96)80223-6

    authors： Matsuhashi T,Miyachi H,Ishibashi T,Sakamoto K,Yamadera A

    更新日期：1996-07-01 00:00:00

  • "Structure-Function Imaging of Lung Disease Using Ultrashort Echo Time MRI".

    abstract：RATIONALE AND OBJECTIVES:The purpose of this review is to acquaint the reader with recent advances in ultrashort echo time (UTE) magnetic resonance imaging (MRI) of the lung and its implications for pulmonary MRI when used in conjunction with functional MRI technique. MATERIALS AND METHODS:We provide an overview of re...

    journal_title：Academic radiology

    pub_type： 杂志文章,评审

    doi：10.1016/j.acra.2018.12.007

    authors： Torres L,Kammerman J,Hahn AD,Zha W,Nagle SK,Johnson K,Sandbo N,Meyer K,Schiebler M,Fain SB

    更新日期：2019-03-01 00:00:00

  • Computer-assisted detection of subcutaneous melanomas: feasibility assessment.

    abstract：RATIONALE AND OBJECTIVES:Subcutaneous melanomas may be missed on computed tomography because of their peripheral location or perceived unimportance, yet they can have clinical significance. The use of a novel computer-assisted detection scheme to locate subcutaneous melanoma lesions in body CT images was investigated. ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2004.01.005

    authors： Solomon J,Mavinkurve S,Cox D,Summers RM

    更新日期：2004-06-01 00:00:00

  • Detection of age-dependent changes in healthy adult lungs with diffusion-weighted 3He MRI.

    abstract：RATIONALE AND OBJECTIVES:To investigate changes in lung microstructure in healthy adult subjects with no smoking history using diffusion-weighted 3He MRI. MATERIALS AND METHODS:Diffusion magnetic resonance imaging using hyperpolarized helium 3 (3He) was applied to healthy volunteers to explore the dependence of lung m...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2005.08.005

    authors： Fain SB,Altes TA,Panth SR,Evans MD,Waters B,Mugler JP 3rd,Korosec FR,Grist TM,Silverman M,Salerno M,Owers-Bradley J

    更新日期：2005-11-01 00:00:00

  • Assessment of the renal corticomedullary (23)Na gradient using isotropic data sets.

    abstract：RATIONALE AND OBJECTIVES:(23)Na magnetic resonance imaging is a promising technique for the noninvasive imaging of renal function. Past investigations of the renal corticomedullary [(23)Na] gradient have relied on imaging only in the coronal plane and on cumbersome calculations of [(23)Na], which require the use of ext...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2012.10.009

    authors： Haneder S,Konstandin S,Morelli JN,Schad LR,Schoenberg SO,Michaely HJ

    更新日期：2013-04-01 00:00:00

  • An ellipsoidal shell model for volume estimation of the right ventricle from magnetic resonance images.

    abstract：RATIONALE AND OBJECTIVES:I developed a volume estimation technique for the crescentic volume of the right ventricle (RV) of the heart. A geometric model was desired to avoid the lengthy data collection and reduction required by Simpson's rule. METHODS:An ellipsoidal shell model was developed that requires only simple ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(12)80006-7

    authors： Denslow S

    更新日期：1994-12-01 00:00:00

  • Videomanometry of the pharynx in dysphagic patients with a posterior cricopharyngeal indentation.

    abstract：RATIONALE AND OBJECTIVES:Patients with a posterior indentation in the pharyngoesophageal segment (PES) are generally considered to have an abnormality of the cricopharyngeal muscle (CPM). In this study we determined the actual width of the PES and the pressure circumstances during swallowing within the pharynx and PES ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(05)80123-0

    authors： Olsson R,Ekberg O

    更新日期：1995-07-01 00:00:00

  • Bayesian regression methodology for estimating a receiver operating characteristic curve with two radiologic applications: prostate biopsy and spiral CT of ureteral stones.

    abstract：RATIONALE AND OBJECTIVES:The authors evaluated two Bayesian regression models for receiver operating characteristic (ROC) curve analysis of continuous diagnostic outcome data with covariates. MATERIALS AND METHODS:Full and partial Bayesian regression models were applied to data from two studies (n = 180 and 100, respe...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(03)80578-0

    authors： Omalley AJ,Zou KH,Fielding JR,Tempany CM

    更新日期：2001-08-01 00:00:00

  • Subtraction CT angiography of the lower extremities: single volume subtraction versus multi-segmented volume subtraction.

    abstract：RATIONALE AND OBJECTIVES:To validate the hypothesis that a multisegmented approach during subtraction computed tomography (CT) angiography of the lower extremities can improve bone removal efficiency by suppressing regional motion. MATERIALS AND METHODS:The institutional review board of our hospital approved this retr...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2011.01.024

    authors： Lee IJ,Chung JW,Hong H,Yin YH,Kim S,Park EA,Lee W

    更新日期：2011-07-01 00:00:00

  • MR imaging of the temporomandibular joint: a validation experiment in vitro.

    abstract：RATIONALE AND OBJECTIVES:The authors compared magnetic resonance (MR) image quality obtained from 3- and 1-mm-thick sections in the depiction of the temporomandibular joint (TMJ) and its adjacent structures. MATERIALS AND METHODS:Eight TMJ specimens from four adult cadaver heads were depicted with MR imaging. Both 3- ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/S1076-6332(99)80116-0

    authors： Cavalcanti MG,Lew D,Ishimaru T,Ruprecht A

    更新日期：1999-11-01 00:00:00

  • Variability of CT Airways Measurements in COPD Patients Between Morning and Afternoon: Comparisons to Variability of Spirometric Measurements.

    abstract：RATIONALE AND OBJECTIVES:Computed tomography (CT) airways measurements can be used as surrogates to spirometric measurements for assessing bronchodilation in a particular patient with chronic obstructive pulmonary disease. Although spirometric measurements show variations within the opening hours of a hospital departme...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2018.02.024

    authors： Hackx M,Gyssels E,Severo Garcia T,De Meulder I,Bruyneel M,Van Muylem A,Ninane V,Gevenois PA

    更新日期：2018-12-01 00:00:00

  • Radiology faculty evaluation: bi-institutional implementation of an experimental appraisal instrument.

    abstract：RATIONALE AND OBJECTIVES:The authors evaluated the reliability and validity of an experimental radiology faculty appraisal instrument. MATERIALS AND METHODS:Residents from the University of Wisconsin (UW) and Indiana University (IU) were asked to use a previously developed behaviorally based, 53-item experimental facu...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(98)80266-3

    authors： Collins J,Albanese MA,Scanlan KA,Propeck PA,Jackson VP

    更新日期：1998-11-01 00:00:00

  • Grand rounds and a visiting professorship program in a department of radiology: how we do it.

    abstract：:We discuss the benefits of maintaining an active, rigorous, and highly structured grand rounds (GR) program in an academic radiology department. These benefits include education for faculty (continuing medical education), fellows, and residents and a venue for building collaboration and camaraderie within the departme...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2012.08.003

    authors： Tridandapani S,Mullins ME,Meltzer CC

    更新日期：2012-11-01 00:00:00

  • Automated segmentation of the liver from 3D CT images using probabilistic atlas and multilevel statistical shape model.

    abstract：RATIONALE AND OBJECTIVES:An atlas-based automated liver segmentation method from three-dimensional computed tomographic (3D CT) images has been developed. The method uses two types of atlases, a probabilistic atlas (PA) and a statistical shape model (SSM). MATERIALS AND METHODS:Voxel-based segmentation with a PA is fi...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2008.07.008

    authors： Okada T,Shimada R,Hori M,Nakamoto M,Chen YW,Nakamura H,Sato Y

    更新日期：2008-11-01 00:00:00

  • Establishing a normative atlas of the human lung: computing the average transformation and atlas construction.

    abstract：RATIONALE AND OBJECTIVES:To establish the range of normal for quantitative computed tomography (CT)-based measures of lung structure and function, we seek to develop methods for matching pulmonary structures across individuals and establishing a normative human lung atlas. MATERIALS AND METHODS:In our previous work, w...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2012.04.025

    authors： Li B,Christensen GE,Hoffman EA,McLennan G,Reinhardt JM

    更新日期：2012-11-01 00:00:00

  • Semi-automatic segmentation software for quantitative clinical brain glioblastoma evaluation.

    abstract：RATIONALE AND OBJECTIVES:Quantitative measurement provides essential information about disease progression and treatment response in patients with glioblastoma multiforme (GBM). The goal of this article is to present and validate a software pipeline for semi-automatic GBM segmentation, called AFINITI (Assisted Follow-u...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2012.03.026

    authors： Zhu Y,Young GS,Xue Z,Huang RY,You H,Setayesh K,Hatabu H,Cao F,Wong ST

    更新日期：2012-08-01 00:00:00

  • Diagnosis of inguinal lymph node metastases using contrast enhanced high resolution MR lymphangiography.

    abstract：RATIONALE AND OBJECTIVES:Inguinal lymph nodes can be the first or the only clinical signs of tumor metastases. The aim of the study was to evaluate the role of contrast-enhanced high-resolution magnetic resonance (MR) lymphangiography in diagnosis of inguinal lymph node metastases. MATERIALS AND METHODS:The study enro...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2012.09.014

    authors： Liu N,Yan Z,Lu Q,Wang C

    更新日期：2013-02-01 00:00:00

  • A report on the current status of grand rounds in radiology residency programs in the United States.

    abstract：RATIONALE AND OBJECTIVES:A national needs assessment of radiology program directors was performed to characterize grand rounds (GR) programs, assess the perceived educational value of GR programs, and determine the impact of the recent economic downturn on GR. MATERIALS AND METHODS:A 28-question survey was developed q...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2011.08.015

    authors： Yablon CM,Wu JS,Slanetz PJ,Eisenberg RL

    更新日期：2011-12-01 00:00:00

  • The use of flat panel volumetric computed tomography (fpVCT) in osteoporosis research.

    abstract：RATIONALE AND OBJECTIVES:Improvements in imaging technology have led to the increased use of computed tomography (CT). For example, micro-CT and quantitative CT (QCT) are now often used in osteoporosis research, in which micro-CT is able to analyze small bones or bone samples with high spatial resolution. In contrast, ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2008.09.017

    authors： Sehmisch S,Dullin C,Zaroban A,Tezval M,Rack T,Schmelz U,Seidlova-Wuttke D,Dunkelberg H,Wuttke W,Marten K,Stuermer KM,Stuermer EK

    更新日期：2009-04-01 00:00:00

  • SYNTAX Score Derived From Coronary CT Angiography for Prediction of Complex Percutaneous Coronary Interventions.

    abstract：RATIONALE AND OBJECTIVES:SYNTAX score is a useful metric determined at the time of invasive coronary angiography (ICA) to assess the complexity of coronary artery disease, and improves prediction of complications at the time of percutaneous complex intervention (PCI). We aimed to determine whether SYNTAX score can be r...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2016.07.003

    authors： Shalev A,Nakazato R,Arsanjani R,Nakanishi R,Park HB,Otaki Y,Cheng VY,Gransar H,LaBounty TM,Hayes SW,Berman DS,Min JK

    更新日期：2016-11-01 00:00:00

  • Use of serial FDG PET to measure the response of bone-dominant breast cancer to therapy.

    abstract：RATIONALE AND OBJECTIVES:The authors performed this study to determine the feasibility of using quantitative 2-[fluorine-18]fluoro-2-deoxy-D-glucose (FDG) positron emission tomography (PET) to monitor the response of breast cancer bone metastases to therapy. MATERIALS AND METHODS:Twenty-four women with stage IV bone-d...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(03)80461-0

    authors： Stafford SE,Gralow JR,Schubert EK,Rinn KJ,Dunnwald LK,Livingston RB,Mankoff DA

    更新日期：2002-08-01 00:00:00

  • Magnetic field strength increase yields significantly greater contrast-to-noise ratio increase: Measured using BOLD contrast in the primary visual area.

    abstract：RATIONALE AND OBJECTIVE:The advantage of a higher static magnetic field for functional MRI has been advocated; however, the observed advantage varies. The aim of this study was to evaluate the effect of increasing static magnetic field strength on the task-related increase in blood oxygenation level-dependent (BOLD) si...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2004.11.012

    authors： Okada T,Yamada H,Ito H,Yonekura Y,Sadato N

    更新日期：2005-02-01 00:00:00

  • Preoperative Prediction of Ki-67 Status in Breast Cancer with Multiparametric MRI Using Transfer Learning.

    abstract：RATIONALE AND OBJECTIVES:Ki-67 is one of the most important biomarkers of breast cancer traditionally measured invasively via immunohistochemistry. In this study, deep learning based radiomics models were established for preoperative prediction of Ki-67 status using multiparametric magnetic resonance imaging (mp-MRI). ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2020.02.006

    authors： Liu W,Cheng Y,Liu Z,Liu C,Cattell R,Xie X,Wang Y,Yang X,Ye W,Liang C,Li J,Gao Y,Huang C,Liang C

    更新日期：2021-02-01 00:00:00

  • Establishing a gold standard for test sets: variation in interpretive agreement of expert mammographers.

    abstract：RATIONALE AND OBJECTIVES:Test sets for assessing and improving radiologic image interpretation have been used for decades and typically evaluate performance relative to gold standard interpretations by experts. To assess test sets for screening mammography, a gold standard for whether a woman should be recalled for add...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2013.01.012

    authors： Onega T,Anderson ML,Miglioretti DL,Buist DS,Geller B,Bogart A,Smith RA,Sickles EA,Monsees B,Bassett L,Carney PA,Kerlikowske K,Yankaskas BC

    更新日期：2013-06-01 00:00:00

  • Three-dimensional human airway segmentation methods for clinical virtual bronchoscopy.

    abstract：RATIONALE AND OBJECTIVES:The segmentation of airways from CT images is a critical first step for numerous virtual bronchoscopic (VB) applications. Automatic or semiautomatic methods are necessary, since manual segmentation is prohibitively time consuming. The methods must be robust and operate within a reasonable time ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(03)80517-2

    authors： Kiraly AP,Higgins WE,McLennan G,Hoffman EA,Reinhardt JM

    更新日期：2002-10-01 00:00:00

  • Estimation of volumes of distribution and intratumoral ethanol concentrations by computed tomography scanning after percutaneous ethanol injection.

    abstract：RATIONALE AND OBJECTIVES:We developed a technique for estimating the volumes of distribution and intratumoral ethanol concentrations using computed tomography (CT) scanning in patients undergoing percutaneous ethanol injection (PEI) treatment of malignant hepatic tumors. METHODS:A phantom containing anhydrous ethanol ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/S1076-6332(96)80333-3

    authors： Alexander DG,Unger EC,Seeger SJ,Karmann S,Krupinski EA

    更新日期：1996-01-01 00:00:00