Abstract:
:Initial research in the development of interventional magnetic resonance (MR) imaging in the late 1980s and early to mid-1990s focused on pulse sequences, devices, and clinical applications. This focus was largely a result of the limited number of areas in which the academic research community leading the development could provide innovation on the MR systems of the time. However, during the past decade, computational power, higher bandwidth graphical displays, faster computer networks, improved pulse sequence architectures, and improved technical specifications have accelerated the pace of development on modern MR systems. Today, it is the combination of multiple system factors that are enabling the future of interventional MR. These developments, their impact on the field, and newly emerging applications are described.
journal_name
Acad Radioljournal_title
Academic radiologyauthors
Elgort DR,Duerk JLdoi
10.1016/j.acra.2005.06.003keywords:
subject
Has Abstractpub_date
2005-09-01 00:00:00pages
1089-99issue
9eissn
1076-6332issn
1878-4046pii
S1076-6332(05)00497-6journal_volume
12pub_type
杂志文章,评审abstract:RATIONALE AND OBJECTIVES:Estimation of regional lung function parameters from hyperpolarized gas magnetic resonance images can be very sensitive to presence of noise. Clustering pixels and averaging over the resulting groups is an effective method for reducing the effects of noise in these images, commonly performed by...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2008.03.002
更新日期:2008-06-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:A novel ventilation imaging method based on four-dimensional (4D) computed tomography (CT) has been applied to the field of radiation oncology. Understanding its reproducibility is a prerequisite for clinical applications. The purpose of this study was to quantify the reproducibility of 4D CT v...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2012.07.006
更新日期:2012-12-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Our goal was to develop and evaluate software to support a computer assisted mammography feedback program (CAMFP) to be used for continuing medical education (CME). MATERIALS AND METHODS:Thirty-five radiologists from our region signed consent to participate in an institutional review board-app...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2007.05.018
更新日期:2007-09-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:A statistical based iterative single-photon emission-computed tomography (SPECT) reconstruction algorithm (OSEM) modeling the depth-dependent collimator response in three dimensions has recently been introduced (OSEM3D). The aim of this study was to evaluate the axial shape fidelity of OSEM3D i...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2005.12.004
更新日期:2006-04-01 00:00:00
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
更新日期:2021-02-01 00:00:00
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
更新日期:2021-01-01 00:00:00
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
更新日期:2015-07-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To determine if combination of washout and noncontrast data from delayed adrenal computed tomography (CT) improves diagnostic performance, and demonstration of an optimizing analytical framework. MATERIALS AND METHODS:This retrospective study consisted of 97 adrenal lesions, in 96 patients, wi...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2017.12.005
更新日期:2018-07-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The purpose of this study was to test the effectiveness of resident-prepared, independent learning cases in teaching residents chest radiology. MATERIALS AND METHODS:Three 2nd-year residents (one each from the University of Wisconsin, the Oregon Health Sciences University, and the University o...
journal_title:Academic radiology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s1076-6332(99)80059-2
更新日期:1999-01-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To identify magnetic resonance (MR) imaging characteristics allowing specific preoperative discrimination between colloid cysts (CCs) of the sellar region and third ventricle (CC3rdv) versus Rathke's cleft cysts (RCCs). MATERIALS AND METHODS:MR imaging data of 38 patients with histologically p...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2013.08.014
更新日期:2013-11-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Manganese is a well-known liver-specific agent used in magnetic resonance imaging. For this purpose, manganese is now administered intravenously. In theory it should be possible to increase the gastrointestinal uptake of manganese through the use of nutritional products as promoters. Such an ag...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/s1076-6332(03)00571-3
更新日期:2004-01-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:We report social media (SoMe) utilization trends at an academic radiology department, highlighting differences between trainees and faculty and between Baby Boomers versus Generation X and Millennials. MATERIALS AND METHODS:An anonymous online survey regarding SoMe utilization and SoMe-based e...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2017.08.012
更新日期:2018-01-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Hyperpolarized (3)He magnetic resonance imaging (MRI) previously revealed the temporal and spatial heterogeneity of ventilation defects in asthmatics, but these findings have not been used in treatment studies or to guide personalized therapy. Our objective was to exploit the temporal and spati...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2014.08.002
更新日期:2014-11-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:This study aimed to determine the preferences of radiology and referring provider residents regarding direct communication of radiology test results. METHODS:This Health Insurance Portability and Accountability Act-compliant quality improvement effort was exempt from institutional review board...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2017.09.015
更新日期:2018-03-01 00:00:00
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
更新日期:2016-06-01 00:00:00
abstract::Despite the widespread belief that advanced imaging should be very helpful in guiding oncology treatment decision and improving efficiency and success rates in treatment clinical trials, its acceptance has been slow. Part of this is likely attributable to gaps in study design and statistical methodology for these imag...
journal_title:Academic radiology
pub_type: 杂志文章,评审
doi:10.1016/j.acra.2017.03.002
更新日期:2017-08-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The aim of this study was to determine the optimal arterial phase delay for computed tomography imaging of hepatocellular carcinoma (HCC) before and after transarterial chemoembolization (TACE) using a low iodine dose protocol. MATERIALS AND METHODS:A total of 39 patients with known HCC were i...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2015.08.021
更新日期:2015-12-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Most secondary intramammary tumors occur as metastatic involvement from the contralateral breast. Breast metastases (BM) from nonmammary malignancies are very rare. The aims of this study were to estimate retrospectively the prevalence of BM from nonmammary malignancies and to describe their ra...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2010.12.009
更新日期:2011-05-01 00:00:00
abstract::Radiology practice will be altered by the coming of artificial intelligence, and the process of learning in radiology will be similarly affected. In the short term, radiologists will need to understand the first wave of artificially intelligent tools, how they can help them improve their practice, and be able to effec...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2018.03.007
更新日期:2018-06-01 00:00:00
abstract::In this article, we describe how social media can supplement traditional education, articulate the advantages and disadvantages of various social media platforms for both teachers and learners, discuss best practices to maintain confidentiality of protected health information, and provide tips for implementing social ...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2016.12.023
更新日期:2017-06-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:This study was performed to determine physical characteristics of areas on chest radiographs that are suspicious but not definitive for the presence of a pulmonary nodule and the characteristics of areas that contain an obvious nodule. MATERIALS AND METHODS:Two groups of patients were identifi...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/s1076-6332(98)80297-3
更新日期:1998-09-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Intravenous thrombolysis decision-making and obtaining of consent would be assisted by an individualized risk-benefit ratio. Deep learning (DL) models may be able to assist with this patient selection. MATERIALS AND METHODS:Clinical data regarding consecutive patients who received intravenous ...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2019.03.015
更新日期:2020-02-01 00:00:00
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
更新日期:2010-01-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Acoustic noise both in terms of its magnitude and frequency during magnetic resonance imaging (MRI) scan is influenced by imaging parameters and pulse sequences. It varies because of many different factors such as structure, materials, and magnetic field strength. The purpose of our study is to...
journal_title:Academic radiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.acra.2010.09.009
更新日期:2011-01-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The purpose of this study was to determine the acquisition and interpretation times of screen-film mammography and soft-copy digital mammography in a diagnostic mammography center. MATERIALS AND METHODS:The study was conducted in three phases for patients presenting for clinical diagnostic wor...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2010.04.018
更新日期:2010-09-01 00:00:00
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
更新日期:2012-08-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To assess the performance of dual-energy computed tomography (DECT) equipped with the new tin filter technology to classify phantom renal lesions as cysts or enhancing masses. MATERIALS AND METHODS:Forty spherical lesion proxies ranging in diameter from 6 to 27 mm were filled with either disti...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2009.11.007
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:To evaluate the utilization and efficacy of various treatments for management of adult patients with splenic trauma, highlighting the evolving role of splenic artery embolization. MATERIALS AND METHODS:The National Trauma Data Bank (NTDB) was queried for patients who sustained splenic trauma between 2007 an...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2020.11.010
更新日期:2020-12-04 00:00:00
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
更新日期:2013-06-01 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