Abstract:
:Innovation in the field of diagnostic imaging is based primarily on the availability of new and improved equipment that opens the door for new clinical applications. Payments for these imaging procedures are subject to complex Medicare price control schemes, affecting incentives for appropriate use and innovation. Achieving a "dynamically efficient" health care system-one that elicits a socially optimal amount of innovation-requires that innovators be rewarded in relation to the value they add and can demonstrate with evidence. The authors examine how and whether value-based reimbursement for diagnostic imaging services might better reward innovation explicitly for expected improvements in health and economic outcomes.
journal_name
Acad Radioljournal_title
Academic radiologyauthors
Garrison LP Jr,Bresnahan BW,Higashi MK,Hollingworth W,Jarvik JGdoi
10.1016/j.acra.2011.04.007subject
Has Abstractpub_date
2011-09-01 00:00:00pages
1109-14issue
9eissn
1076-6332issn
1878-4046pii
S1076-6332(11)00205-4journal_volume
18pub_type
杂志文章abstract:RATIONALE AND OBJECTIVES:The authors evaluated the diagnostic accuracy of viewing computed tomographic (CT) scans as film versus soft-copy images at a workstation. METHODS:Receiver operating characteristic analysis of the interpretation of 202 CT scans (103 were normal, 99 were abnormal) by five neuroradiologists was ...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/s1076-6332(97)80004-9
更新日期:1997-02-01 00:00:00
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
更新日期:2020-05-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To evaluate the correlations of tracheal volume and collapsibility on inspiratory and end-expiratory computed tomography (CT) with lung volume and with lung function in smokers. MATERIALS AND METHODS:The institutional review board approved this study at each institution. 85 smokers (mean age 6...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2010.11.005
更新日期:2011-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To prospectively analyze the correlation between parameters of liver perfusion from technetium99m-macroaggregates of albumin (99mTc-MAA) single photon emission computed tomography (SPECT) with those obtained from dynamic CT perfusion in patients with primary or metastatic liver malignancy. MAT...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2011.12.015
更新日期:2012-05-01 00:00:00
abstract::Successful research results from the combination of multiple elements, including an appropriate research question, study design, research method, statistical analysis, and interpretation of results. One element of research that is easy to overlook is proper data collection and preparation for analysis. If data collect...
journal_title:Academic radiology
pub_type: 杂志文章,评审
doi:10.1016/j.acra.2015.08.024
更新日期:2015-12-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Acute and chronic graft rejection remains the major problem in clinical surveillance of lung-transplanted patients and early detection of complications is of capital importance to allow the optimal therapeutic option. The aim of this study was to investigate the role of quantitative non contras...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2020.05.026
更新日期:2020-07-08 00:00:00
abstract:RATIONALE AND OBJECTIVES:The aim of this study was to determine the sonographic visibility of implanted collagen-based breast biopsy marker clips in the clinic and operating room. MATERIALS AND METHODS:Female patients aged > or =18 years who presented for preoperative surgical evaluation within 4 weeks of ultrasound-g...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2009.10.017
更新日期:2010-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Severe calcifications of the coronary arteries are still a major challenge in coronary computed tomography (CT) angiography (CCTA). Subtraction CCTA using a 320-detector row CT scanner has recently been introduced for patients with severe calcifications. However, the conventional subtraction CC...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2016.04.012
更新日期:2016-09-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Pulmonary atelectasis presumably promotes and facilitates lung injury. However, data are limited on its direct and remote relation to inflammation. We aimed to assess regional 2-deoxy-2-[18F]-fluoro-D-glucose (18F-FDG) kinetics representative of inflammation in atelectatic and normally aerated ...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2019.12.022
更新日期:2020-12-01 00:00:00
abstract::Disturbances in blood capillary exchange of fluid, macromolecules, and cells across intact and abnormal microvessels and deranged lymphatic transport are integral, interacting components in disorders of tissue swelling. Lymphedema or low-output failure of the lymph circulation is often indolent for many years before l...
journal_title:Academic radiology
pub_type: 杂志文章,评审
doi:10.1016/s1076-6332(05)80193-x
更新日期:1995-04-01 00:00:00
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
更新日期:2020-05-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The aim of this study was to prospectively examine the impact of a tablet-based curriculum on the radiology resident educational experience. MATERIALS AND METHODS:A comprehensive tablet-based curriculum was developed by creating subspecialty modules with appropriate content level for each requ...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2018.05.018
更新日期:2018-12-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:An automated method for identification and segmentation of acute/subacute ischemic stroke, using the inherent bi-fold symmetry in brain images, is presented. An accurate and automated method for localization of acute ischemic stroke could provide physicians with a mechanism for early detection ...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2008.03.013
更新日期:2008-09-01 00:00:00
abstract::The outbreak of 2019 novel coronavirus (2019-nCoV) pneumonia was reported in Wuhan, Hubei Province, China in December 2019 and has spread internationally. This article discusses how radiology departments can most effectively respond to this public health emergency. ...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2020.02.003
更新日期:2020-04-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Dimeric nonionic iodinated contrast has a lower osmolality than monomeric nonionic iodinated contrast but is available at lower iodine concentrations. Less dilution of intravascular fluid by influx from the extravascular space is proposed to occur with decreasing osmolality. The purpose of this...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2005.01.015
更新日期:2005-05-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To demonstrate that a massive training artificial neural network (MTANN) can be adequately trained with a small number of cases in the distinction between nodules and vessels (non-nodules) in thoracic computed tomography (CT) images. MATERIALS AND METHODS:An MTANN is a trainable, highly nonlin...
journal_title:Academic radiology
pub_type: 临床试验,杂志文章
doi:10.1016/j.acra.2005.06.017
更新日期:2005-10-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Breast dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) scanning protocols vary widely. The purpose of this study was to determine the effects of postcontrast timing on delayed-phase lesion kinetics assessment and ability to discriminate malignant from benign lesions. MATERIALS A...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2014.04.013
更新日期:2014-09-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To characterize the lipidic profile of bone marrow in the calcaneus and femoral neck of healthy, osteopenic, and osteoporotic women, by using magnetic resonance spectroscopy (MRS) at 3T. The final goal was to identify specific metabolites with the potential ability to discriminate between healt...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2015.11.009
更新日期:2016-03-01 00:00:00
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
更新日期:2008-11-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:3-Bromopyruvate (3-BrPA), an hexokinase II inhibitor, is known to have high necrotic rate in hyperglycolytic liver tumor models without apparent damage to the normal liver parenchyma. The toxicity of intra-arterial delivery of 3-BrPA in various concentrations has not been specifically investiga...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2006.09.059
更新日期:2007-01-01 00:00:00
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
更新日期:2018-07-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The purpose of this study was to investigate the potential effects of patient size and radiation dose on the accuracy of iodine quantification using dual-source dual-energy computed tomography (CT). MATERIALS AND METHODS:Three phantoms representing different patient sizes were constructed, con...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2019.12.027
更新日期:2021-01-01 00:00:00
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
更新日期:2012-11-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Multireader imaging trials often use a factorial design, in which study patients undergo testing with all imaging modalities and readers interpret the results of all tests for all patients. A drawback of this design is the large number of interpretations required of each reader. Split-plot desi...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2012.09.012
更新日期:2012-12-01 00:00:00
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
更新日期:2018-06-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Electronic learning (e-learning) may provide a means to enhance learning efficacy. However, introduction of e-learning often fails. We describe a strategy of how an e-learning curriculum was successfully implemented. MATERIALS AND METHODS:The curriculum was designed based on published evidence...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2005.12.006
更新日期:2006-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To identify the presence and extent of artifacts in prostate diffusion-weighted magnetic resonance imaging (DW-MRI) and discuss tradeoffs between imaging at 1.5 T (1.5 T) and 3.0 T (3.0 T). In addition, we aim to provide quantitative estimates of signal-to-noise ratios (SNRs) at both field stre...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2013.04.005
更新日期:2013-08-01 00:00:00
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
更新日期:1994-12-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Burnout is a psychological syndrome composed of emotional exhaustion, depersonalization, and sense of lack of personal accomplishment, as a result of prolonged occupational stress. The purpose of our study was to determine the prevalence of burnout among current musculoskeletal radiology fellow...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2016.12.024
更新日期:2017-06-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To evaluate a new approach to establish compliance of segmentation tools with the computed tomography volumetry profile of the Quantitative Imaging Biomarker Alliance (QIBA); and determine the statistical exchangeability between real and simulated lesions through an international challenge. MA...
journal_title:Academic radiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.acra.2018.07.022
更新日期:2019-07-01 00:00:00