当前位置： SCI文献检索 > ACADEMIC RADIOLOGY期刊下所有文献 > Loss of anteroposterior intralobar attenuation gradient of the lung: Correlation with pulmonary function.

Loss of anteroposterior intralobar attenuation gradient of the lung: Correlation with pulmonary function.

Abstract：

RATIONALE AND OBJECTIVES:Since the initial description of an intralobar attenuation gradient by Webb et al, it has been suggested that departure from the intralobar attenuation gradient could indicate early lung diseases. However, its significance has not been determined in detail. We aimed to quantify the anteroposterior intralobar attenuation gradient on volumetric end-inspiratory and end-expiratory high-resolution computed tomography (CT) in patients with emphysema and to correlate the gradient values with pulmonary function. MATERIALS AND METHODS:The study population consisted of 21 consecutive patients with emphysema evaluated with volumetric expiratory high-resolution CT and 6 patients with normal high-resolution CT findings. The anteroposterior intralobar attenuation gradient values were quantified on end-inspiratory and end-expiratory sagittal reformations using a lung analysis software program and were correlated with pulmonary function tests results. RESULTS:The intralobar attenuation gradient values in patients with forced expiratory volume in 1 second (FEV1) < or =70% were significantly smaller compared with those in patients with FEV1 >70% in bilateral lower lobes at end-expiration (P = .0061, P = .047, respectively, unpaired t-test). The FEV1 values in patients with attenuation gradient values < or =0.02 were significantly lower than in those with attenuation gradient values >0.02 (right lower lobe: P = .024; left lower lobe: P = .0034; chi-squared test). The intralobar attenuation gradient values in bilateral lower lobes at end-expiration were significantly correlated with FEV1 and FEV1/forced vital capacity (right: P = .031, P = .039, respectively; left: P = .036, P = .030, respectively, Pearson correlation). CONCLUSIONS:The quantitative measurement of the anteroposterior intralobar attenuation gradient values of the lung showed that these gradients at end-expiration in both lower lobes correlate with obstructive physiology.

journal_name

Acad Radiol

journal_title

Academic radiology

authors

Nishino M,Roberts DH,Sitek A,Raptopoulos V,Boiselle PM,Hatabu H

doi

10.1016/j.acra.2005.10.025

subject

Has Abstract

pub_date

2006-05-01 00:00:00

pages

589-97

issue

5

eissn

1076-6332

issn

1878-4046

pii

S1076-6332(06)00129-2

journal_volume

13

pub_type

杂志文章

相关文献

ACADEMIC RADIOLOGY文献大全
  • Differential Diagnosis of Nonhypervascular Pancreatic Neuroendocrine Neoplasms From Pancreatic Ductal Adenocarcinomas, Based on Computed Tomography Radiological Features and Texture Analysis.

    abstract：RATIONALE AND OBJECTIVES:To determine computed tomography (CT) radiological features and texture features that are rewarding in differentiating nonhypervascular pancreatic neuroendocrine neoplasms (PNENs) from pancreatic ductal adenocarcinomas (PDACs). MATERIALS AND METHODS:We compared patients to pathologically prove...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2019.06.012

    authors： Yu H,Huang Z,Li M,Wei Y,Zhang L,Yang C,Zhang Y,Song B

    更新日期：2020-03-01 00:00:00

  • Correlation of HER-2/neu overexpression with mammography and age distribution in primary breast carcinomas.

    abstract：RATIONALE AND OBJECTIVES:HER-2/neu is a valuable prognostic and therapeutic marker in primary breast carcinoma. The objective of this study was to determine the mammographic and patient characteristics (age) that correlate with HER-2/neu overexpression in primary breast carcinoma. MATERIALS AND METHODS:HER-2/neu chara...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2006.06.015

    authors： Seo BK,Pisano ED,Kuzimak CM,Koomen M,Pavic D,Lee Y,Cole EB,Lee J

    更新日期：2006-10-01 00:00:00

  • Seventy-Peak Kilovoltage High-Pitch Thoracic Aortic CT Angiography without ECG Gating: Evaluation of Image Quality and Radiation Dose.

    abstract：RATIONALE AND OBJECTIVES:To assess the feasibility of 70-kVp high-pitch non-ECG-gated thoracic aortic computed tomography angiography (CTA) with 40-mL contrast agent compared to 100-kVp standard-pitch CTA with 60-mL contrast agent. MATERIALS AND METHODS:Sixty-seven patients (51 men and 16 women; mean age, 55 ± 14 year...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2015.03.007

    authors： Zhang LJ,Zhao YE,Schoepf UJ,Mangold S,Felmly LM,Li X,Tang CX,Zhou CS,Qi L,Lu GM

    更新日期：2015-07-01 00:00:00

  • CT Quantification and Machine-learning Models for Assessment of Disease Severity and Prognosis of COVID-19 Patients.

    abstract：OBJECTIVE:This study was to investigate the CT quantification of COVID-19 pneumonia and its impacts on the assessment of disease severity and the prediction of clinical outcomes in the management of COVID-19 patients. MATERIALS METHODS:Ninety-nine COVID-19 patients who were confirmed by positive nucleic acid test (NAT...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2020.09.004

    authors： Cai W,Liu T,Xue X,Luo G,Wang X,Shen Y,Fang Q,Sheng J,Chen F,Liang T

    更新日期：2020-12-01 00:00:00

  • Molecular PET/CT imaging-guided radiation therapy treatment planning.

    abstract：:The role of positron emission tomography (PET) during the past decade has evolved rapidly from that of a pure research tool to a methodology of enormous clinical potential. (18)F-fluorodeoxyglucose (FDG)-PET is currently the most widely used probe in the diagnosis, staging, assessment of tumor response to treatment, a...

    journal_title：Academic radiology

    pub_type： 杂志文章,评审

    doi：10.1016/j.acra.2009.02.014

    authors： Zaidi H,Vees H,Wissmeyer M

    更新日期：2009-09-01 00:00:00

  • Machine classification of dental images with visual search.

    abstract：RATIONALE AND OBJECTIVES:The authors performed this study to assess the performance of a computer-based classification system that uses gaze locations of observers to define the subspace for machine learning. MATERIALS AND METHODS:Thirty-two dental radiographs were classified by an expert viewer into four categories o...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/S1076-6332(03)80706-7

    authors： Carmody DP,McGrath SP,Dunn SM,van der Stelt PF,Schouten E

    更新日期：2001-12-01 00:00:00

  • Discriminating Depth of Response to Therapy in Multiple Myeloma Using Whole-body Diffusion-weighted MRI with Apparent Diffusion Coefficient: Preliminary Results From a Single-center Study.

    abstract：RATIONALE AND OBJECTIVES:This study aimed to measure apparent diffusion coefficient (ADC) in Chinese patients with newly diagnosed multiple myeloma by whole-body diffusion-weighted magnetic resonance imaging (WB-DWI MRI) and assess the diagnostic accuracy of ADC in the discrimination of deep response to induction chemo...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2017.12.008

    authors： Wu C,Huang J,Xu WB,Guan YJ,Ling HW,Mi JQ,Yan H

    更新日期：2018-07-01 00:00:00

  • Effect of variations in operational definitions on performance estimates for screening mammography.

    abstract：RATIONALE AND OBJECTIVES:The Mammography Quality Standards Act requires practices to measure limited aspects of their performance. The authors conducted this study to calculate the differences in measurements of sensitivity and specificity due only to differences in the definitions used in the analysis. This included d...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(00)80057-4

    authors： Rosenberg RD,Yankaskas BC,Hunt WC,Ballard-Barbash R,Urban N,Ernster VL,Kerlikowske K,Geller B,Carney PA,Taplin S

    更新日期：2000-12-01 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

  • Investigation of misfiled cases in the PACS environment and a solution to prevent filing errors for chest radiographs.

    abstract：RATIONALE AND OBJECTIVE:The aim of the study was to survey misfiled cases in a picture archiving and communication system environment at two hospitals and to demonstrate the potential usefulness of an automated patient recognition method for posteroanterior chest radiographs based on a template-matching technique desig...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2004.11.008

    authors： Morishita J,Watanabe H,Katsuragawa S,Oda N,Sukenobu Y,Okazaki H,Nakata H,Doi K

    更新日期：2005-01-01 00:00:00

  • Comparison of three methods for estimating the standard error of the area under the curve in ROC analysis of quantitative data.

    abstract：RATIONALE AND OBJECTIVES:Several methods have been proposed for estimating the standard error (SE) of the area under the curve (AUC) in receiver operating characteristic analysis. The authors examined the validity of three methods--the LABROC procedure, exponential approximation, and the method of DeLong et al (purely ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(03)80561-5

    authors： Hajian-Tilaki KO,Hanley JA

    更新日期：2002-11-01 00:00:00

  • Visual and Quantitative Evaluation of Emphysema: A Case-Control Study of 1111 Participants in the Pilot Swedish CArdioPulmonary BioImage Study (SCAPIS).

    abstract：RATIONALE AND OBJECTIVES:Emphysema is a hallmark of chronic obstructive pulmonary disease. The primary aim of this study was to investigate inter- and intraobserver agreement of visual assessment of mild emphysema in low-dose multidetector computed tomography of subjects in the pilot SCAPIS in order to certify consiste...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2019.06.019

    authors： Vikgren J,Khalil M,Cederlund K,Sörensen K,Boijsen M,Brandberg J,Lampa E,Sköld MC,Wollmer P,Lindberg E,Engvall JE,Bergström G,Torén K,Johnsson ÅA

    更新日期：2020-05-01 00:00:00

  • A segmentation-based method for metal artifact reduction.

    abstract：RATIONALE AND OBJECTIVES:We propose a novel segmentation-based interpolation method to reduce the metal artifacts caused by surgical aneurysm clips. MATERIALS AND METHODS:Our method consists of five steps: coarse image reconstruction, metallic object segmentation, forward-projection, projection interpolation, and fina...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2006.12.015

    authors： Yu H,Zeng K,Bharkhada DK,Wang G,Madsen MT,Saba O,Policeni B,Howard MA,Smoker WR

    更新日期：2007-04-01 00:00:00

  • Triple rule-out CT in patients with suspicion of acute pulmonary embolism: findings and accuracy.

    abstract：RATIONALE AND OBJECTIVES:The aim of this study was to prospectively investigate the diagnostic value of triple rule-out computed tomography (CT) in patients suspected of having acute pulmonary embolism (PE). MATERIALS AND METHODS:A total of 125 patients with suspicion of PE, of whom 14 patients had the additional clin...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2009.01.014

    authors： Schertler T,Frauenfelder T,Stolzmann P,Scheffel H,Desbiolles L,Marincek B,Kaplan V,Kucher N,Alkadhi H

    更新日期：2009-06-01 00:00:00

  • Optimization of shaded surface display for CT angiography.

    abstract：RATIONALE AND OBJECTIVES:The authors performed this study to determine the optimum threshold for performing computed tomographic (CT) angiography with shaded surface display (SSD). MATERIALS AND METHODS:A dedicated phantom was developed with an 8-mm luminal diameter. Each of 19 vessels had stenoses ranging from 0% to ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/S1076-6332(03)80641-4

    authors： Addis KA,Hopper KD,Iyriboz TA,Kasales CJ,Liu Y,Wise SW

    更新日期：2001-10-01 00:00:00

  • Relating dose of contrast media administered to uptake and washout of malignant lesions on DCEMRI of the breast.

    abstract：RATIONALE AND OBJECTIVES:To quantify the relationship between dose of contrast administered and contrast kinetics of malignant breast lesions. MATERIALS AND METHODS:A total of 108 patients with 120 malignant lesions were selected for an institutional review board-approved review. Dynamic magnetic resonance protocol: o...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2009.06.015

    authors： Jansen SA,Fan X,Yang C,Shimauchi A,Karczmar G,Newstead GM

    更新日期：2010-01-01 00:00:00

  • Comparison of diagnostic accuracy of 64-slice computed tomography coronary angiography in patients with low, intermediate, and high cardiovascular risk.

    abstract：RATIONALE AND OBJECTIVES:The aim of this study was to compare the diagnostic accuracy of 64-slice computed tomographic coronary angiography (CTCA) in groups of patients with low, intermediate, and high risk for coronary artery disease (CAD) events. MATERIALS AND METHODS:The institutional review board approved this stu...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2007.12.008

    authors： Husmann L,Schepis T,Scheffel H,Gaemperli O,Leschka S,Valenta I,Koepfli P,Desbiolles L,Stolzmann P,Marincek B,Alkadhi H,Kaufmann PA

    更新日期：2008-04-01 00:00:00

  • Liver Imaging Reporting and Data System:: Substantial Discordance Between CT and MR for Imaging Classification of Hepatic Nodules.

    abstract：RATIONALE AND OBJECTIVES:The Liver Imaging Reporting and Data System (LI-RADS) is a newly developed nomogram for standardizing the performance and interpretation of liver imaging. However, it is unclear which imaging technique is optimal to exactly define LI-RADS scale. This study aims to determine the concordance of c...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2015.11.002

    authors： Zhang YD,Zhu FP,Xu X,Wang Q,Wu CJ,Liu XS,Shi HB

    更新日期：2016-03-01 00:00:00

  • Reliability of MR Quantification of Rotator Cuff Muscle Fatty Degeneration Using a 2-point Dixon Technique in Comparison with the Goutallier Classification: Validation Study by Multiple Readers.

    abstract：RATIONALE AND OBJECTIVES:Presurgical assessment of fatty degeneration is important in the management of patients with rotator cuff tears. The Goutallier classification is widely accepted as a qualitative scoring system, although it is highly observer-dependent and has poor reproducibility. The objective of this study w...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2017.03.026

    authors： Horiuchi S,Nozaki T,Tasaki A,Yamakawa A,Kaneko Y,Hara T,Yoshioka H

    更新日期：2017-11-01 00:00:00

  • Ex Vivo Study of Artifacts Caused by Breast Tissue Markers with Different 1.5 Tesla and 3 Tesla MRI Scanners - A Bicentric Study.

    abstract：RATIONALE AND OBJECTIVES:The purpose of our study was to evaluate magnetic resonance (MR) artifacts related to breast tissue markers in breast imaging procedures. MATERIALS AND METHODS:In this bicentric prospective ex vivo study 10 different commercially available markers were measured in self-made breast phantoms. Br...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2019.12.006

    authors： Puesken M,Unterberg-Buchwald C,Rhiem K,Große Hokamp N,Maintz D,Lotz J,Wienbeck S

    更新日期：2021-01-01 00:00:00

  • Use of 3D Printed Models to Create Molds for Shaping Implants for Surgical Repair of Orbital Fractures.

    abstract：RATIONALE AND OBJECTIVES:Surgical repair of an isolated orbital fracture requires anatomically accurate implant shape and placement. We describe a three-dimensional (3D) printing technique to customize the shape of commercially available absorbable implants. MATERIALS AND METHODS:We reviewed our early experience with ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2019.06.023

    authors： Weadock WJ,Heisel CJ,Kahana A,Kim J

    更新日期：2020-04-01 00:00:00

  • Nonclinical factors associated with primary care physicians' ordering patterns of magnetic resonance imaging/computed tomography for headache.

    abstract：RATIONALE AND OBJECTIVES:The purpose of ordering an imaging test for headache, which is one of the most common reasons for patient consultation with a primary care physician (PCP), include medical indications as well as patient anxiety and medico-legal concerns. The impact of nonclinical factors on PCPs' ordering patte...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2004.03.050

    authors： Couchman GR,Forjuoh SN,Rajab MH,Phillips CD,Yu J

    更新日期：2004-07-01 00:00:00

  • The effects of magnetically labeled rat spleen-originated endothelial progenitor cells on growth of glioma in vivo an experimental study.

    abstract：RATIONALE AND OBJECTIVES:The aim of this study was to investigate the effects of exogenous endothelial progenitor cells (EPCs) on the growth and invasiveness of glioma in vivo to provide an experimental basis for the value and safety of using magnetically labeled EPCs as target vectors to detect early infiltration of g...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2011.02.017

    authors： Fang J,Wang S,Chen J,Zhang Y,Zhang B,Liang H,Zhang W

    更新日期：2011-07-01 00:00:00

  • Anatomic Eponyms in Neuroradiology: Brain, Cerebral Vasculature, and Calvarium.

    abstract：:Medical eponyms are ubiquitous, numerous, and at times controversial. They are often useful for succinctly conveying complex concepts, and familiarity with eponyms is important for proper usage and appropriate communication. In this historical review, we identify 18 anatomic eponyms used to describe structures of the ...

    journal_title：Academic radiology

    pub_type： 传,历史文章,杂志文章,评审

    doi：10.1016/j.acra.2016.01.008

    authors： Bunch PM,Zamani AA

    更新日期：2016-06-01 00:00:00

  • Nephrogenic systemic fibrosis and management of high-risk patients.

    abstract：:The purpose of this work is to provide current information on the rapidly evolving subject of nephrogenic systemic fibrosis (NSF), to establish the radiologic approach to the management of high-risk patients for NSF, and to assess the probabilistic risk of NSF compared to contrast induced nephropathy (CIN), as encount...

    journal_title：Academic radiology

    pub_type： 杂志文章,评审

    doi：10.1016/j.acra.2009.01.001

    authors： Altun E,Semelka RC,Cakit C

    更新日期：2009-07-01 00:00:00

  • The Clinical Impact of Resident-attending Discrepancies in On-call Radiology Reporting: A Retrospective Assessment.

    abstract：RATIONALE AND OBJECTIVES:The purpose of this study is to quantify the clinical impact of resident-attending discrepancies at a tertiary referral academic radiology residency program by assessing rates of intervention, discrepancy confirmation, recall rate, and management change rate; furthermore, a discrepancy categori...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2017.11.016

    authors： McWilliams SR,Smith C,Oweis Y,Mawad K,Raptis C,Mellnick V

    更新日期：2018-06-01 00:00:00

  • Automated detection of breast mass spiculation levels and evaluation of scheme performance.

    abstract：RATIONALE AND OBJECTIVES:Although the spiculation levels of breast mass boundaries are a primary sign of malignancy for masses detected on mammography, developing an automated computerized method to detect spiculation levels and quantitatively evaluating the performance of such a method is a difficult task. The objecti...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2008.07.015

    authors： Jiang L,Song E,Xu X,Ma G,Zheng B

    更新日期：2008-12-01 00:00:00

  • System for robotically assisted prostate biopsy and therapy with intraoperative CT guidance.

    abstract：RATIONALE AND OBJECTIVES:The purpose of this study was to assess the work-in-progress prototype of an image-guided, robotic system for accurate and consistent placement of transperineal needles into the prostate with intraoperative image guidance inside the gantry of a computed tomographic (CT) scanner. MATERIALS AND ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(03)80297-0

    authors： Fichtinger G,DeWeese TL,Patriciu A,Tanacs A,Mazilu D,Anderson JH,Masamune K,Taylor RH,Stoianovici D

    更新日期：2002-01-01 00:00:00

  • Hybrid segmentation and virtual bronchoscopy based on CT images.

    abstract：RATIONALE AND OBJECTIVES:Introduction of combination of the segmentation tool SegoMeTex and the virtual endoscopy system VIVENDI to perform virtual endoscopic inspections of the human lung. This virtual bronchoscopy system enables visualization of the tracheobronchial tree down to seventh generation. Furthermore, the m...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2004.01.012

    authors： Mayer D,Bartz D,Fischer J,Ley S,del Río A,Thust S,Kauczor HU,Heussel CP

    更新日期：2004-05-01 00:00:00

  • USMLE Step 3 Scores Have Value in Predicting ABR Core Examination Outcome and Performance: A Multi-institutional Study.

    abstract：RATIONALE AND OBJECTIVES:We analyzed multi-institutional data to determine if Step 3 performance tiers can identify radiology residents with increased risk of Core examination failure and submean performance. MATERIALS AND METHODS:We collected Step 3 scores (USMLE Step 3 or COMLEX Level 3) and American Board of Radiol...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2020.06.032

    authors： Patel MD,Benefield T,Hunt KN,Tomblinson CM,Ali K,DeBenedectis CM,England E,Gaviola GC,Ho CP,Jay AK,Milburn JM,Ong S,Robbins JB,Sarkany DS,Heitkamp DE,Jordan SG

    更新日期：2020-08-06 00:00:00