Abstract:
RATIONALE AND OBJECTIVES:The aim of this study was to develop a pulmonary nodule viewing system to visualize and retrieve data from the Lung Image Database Consortium. MATERIALS AND METHODS:The pulmonary nodule viewing system, developed using Microsoft C++ and the .NET 2.0 Framework, is composed of a clinical information integrator, a nodule viewer, a search engine, and a data model. RESULTS:A pulmonary nodule viewing system using Lung Image Database Consortium data for computer-aided diagnosis research and training purpose was developed. CONCLUSIONS:The pulmonary nodule viewing system can be used to build a pulmonary nodule database for computer-aided diagnosis research and medical education. It can also be used to view and retrieve large data sets efficiently.
journal_name
Acad Radioljournal_title
Academic radiologyauthors
Lin H,Chen Z,Wang Wdoi
10.1016/j.acra.2011.04.006subject
Has Abstractpub_date
2011-09-01 00:00:00pages
1181-5issue
9eissn
1076-6332issn
1878-4046pii
S1076-6332(11)00204-2journal_volume
18pub_type
杂志文章abstract:RATIONALE AND OBJECTIVES:Electron beam angiography is a minimally invasive imaging technique. Adequate vascular opacification throughout the study remains a critical issue for image quality. We hypothesized that vascular image opacification and uniformity of vascular enhancement between slices can be improved using mul...
journal_title:Academic radiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.acra.2005.09.087
更新日期:2006-02-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Hepatic ischemia/reperfusion injury (IRI) occurs during certain hepatobiliary surgeries, hemorrhagic shock, and veno-occlusive disease. Biochemical changes caused by hepatic IRI lead to hepatocellular remodeling, including cellular regeneration or irreversible apoptosis. This study aims to char...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2010.09.019
更新日期:2011-02-01 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:To evaluate the feasibility and performance of an x-ray beam equalization system for chest radiography using anthropomorphic phantoms. MATERIALS AND METHODS:Area beam equalization involves the process of the initial unequalized image acquisition, attenuator thickness calculation, mask generati...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/s1076-6332(03)00730-x
更新日期:2004-04-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To review sustainability and fair access related to setting up a centralized transient elastography (TE) program in the radiology department and to perform a quality assessment of a novel liver fibrosis evaluation program that combines TE with limited abdominal ultrasound (US). MATERIAL AND ME...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2015.02.014
更新日期:2015-07-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The goal of this prospective, interinstitutional study was to compare the long-term instructional effectiveness of a pediatric multimedia textbook (MMTB) to that of a standard lecture and a printed textbook. MATERIALS AND METHODS:A randomized cohort of 89 3rd-year medical students from two ins...
journal_title:Academic radiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s1076-6332(97)80074-8
更新日期:1997-11-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:We tested deployment feasibility and intraarterial biocompatibility of polyethylene terephthalate (PET) self-expandable vascular stents in a porcine peripheral artery model. METHODS:To assess the thrombogenicity and neointimal response to oversized PET self-expandable stents, we implanted 10 s...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/S1076-6332(05)80151-5
更新日期:1995-02-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Magnetic resonance (MR) imaging is used to assess brain tumor response to therapies, and a MR quality assurance (QA) program is necessary for multicenter clinical trials employing imaging. This study was performed to determine overall variability of quantitative imaging metrics measured with th...
journal_title:Academic radiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.acra.2008.04.004
更新日期:2008-09-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:This project evaluated human observer performance and that of a human visual system model (JNDmetrix) to assess whether the veiling glare of a digital display influences observer performance during soft-copy interpretation of mammographic images for the detection of masses. MATERIALS AND METHO...
journal_title:Academic radiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.acra.2005.11.006
更新日期:2006-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:In patients with severe emphysema and poor quality of life, bronchoscopic lung volume reduction (BLVR) may be considered and guided based on lobar emphysema severity. In particular, x-ray computed tomography (CT) emphysema measurements are used to identify the most diseased and the second-most ...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2017.08.010
更新日期:2018-02-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The aim of this study was to assess similarities and differences between methods of performance comparisons under binary (yes or no) and receiver-operating characteristic (ROC)-type pseudocontinuous (0-100) rating data ascertained during an observer performance study of interpretation of full-f...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2009.12.012
更新日期:2010-05-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:A method is presented to track guide wires during endovascular interventions under X-ray fluoroscopy. Accurate guide wire tracking can be used to improve guide wire visualization in the low quality fluoroscopic images, and to estimate the position of the guide wire in world coordinates for navi...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/s1076-6332(03)00539-7
更新日期:2003-12-01 00:00:00
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
更新日期:2002-10-01 00:00:00
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 OBJECTIVE:Among artifacts on three-dimensional (3D) angiograms, pseudostenosis in vessels adjacent to intracranial aneurysms has not been described. By using a phantom, artifacts seen in vessels adjacent to intracranial aneurysms on volume-rendered 3D angiograms were assessed. MATERIALS AND METHODS:Using...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2004.12.003
更新日期:2005-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Early loss of a sensory modality has been associated with cortical reorganization in both animal models and humans. The purpose of this study was to map visual activation with functional magnetic resonance (MR) imaging and to document possible developmental reorganization in the temporal lobe c...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/S1076-6332(03)80684-0
更新日期:2001-07-01 00:00:00
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
更新日期:2004-07-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Current imaging procedures of the lung concentrate on visualization of morphology. Computed tomography is the imaging method of choice for the majority of pulmonary diseases. Functional data are commonly obtained from arterial blood gas analysis, spirometry, and body plethysmography, which all ...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/s1076-6332(03)00335-0
更新日期:2003-10-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Ultrasonography (US) is becoming popular for the assessment of adiposity, but no one has studied this tool in the light of its potential limitations. Our purpose was to investigate the impact of technical conditions on the evaluation of abdominal fat by US. MATERIALS AND METHODS:Forty-five hea...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2013.07.009
更新日期:2013-10-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The purpose of this study was to compare the efficacy of dual-energy computed tomography (DECT), time-resolved magnetic resonance (MR) imaging (MRI) perfusion measurements, and high-resolution MR angiography (MRA) for the detection of pulmonary embolism (PE) in a rabbit model. MATERIALS AND ME...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2010.09.004
更新日期:2010-12-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Previous cross-sectional studies have demonstrated that airway wall thickness and air trapping are greater in subjects with severe asthma than in those with mild-to-moderate asthma. However, a better understanding of how airway remodeling and lung density change over time is needed. This study ...
journal_title:Academic radiology
pub_type: 临床试验,杂志文章
doi:10.1016/j.acra.2014.05.001
更新日期:2014-08-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Pulmonary vascular alteration is one of the characteristic features of chronic obstructive pulmonary disease (COPD). Recent studies suggest that vascular alteration is closely related to endothelial dysfunction and may be further influenced by emphysema. However, the relationship between morpho...
journal_title:Academic radiology
pub_type: 临床试验,杂志文章
doi:10.1016/j.acra.2009.07.022
更新日期:2010-01-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To investigate the value of MRI-based features and texture analysis (TA) in the differential diagnosis between ovarian thecomas/fibrothecomas (OTCA/f-TCAs) and uterine fibroids in the adnexal area (UF-iaas). MATERIALS AND METHODS:This retrospective study included 16 OTCA/f-TCA and 37 UF-iaa pa...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2019.12.025
更新日期:2020-10-01 00:00:00
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
更新日期:1996-07-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Needle biopsy is currently the only way to confirm prostate cancer. To increase prostate cancer diagnostic rate, needles are expected to be deployed at suspicious cancer locations. High-contrast magnetic resonance (MR) imaging provides a powerful tool for detecting suspicious cancerous tissues....
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2007.07.018
更新日期:2007-11-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Chest radiographs are recommended for prevention and detection of pneumoconiosis. In 2011, the International Labour Office (ILO) released a revision of the International Classification of Radiographs of Pneumoconioses that included a digitized standard images set. The present study compared res...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2013.11.019
更新日期:2014-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The purpose of this study was to determine the feasibility of using transabdominal ultrasonography (US) to monitor tumor growth and response to therapy in a mouse model of orthotopic bladder carcinoma. MATERIALS AND METHODS:Human bladder carcinoma cell suspensions were injected into the bladde...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/s1076-6332(01)90038-8
更新日期:2001-02-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Studies of medical school clerkship websites have reported efficient time management, resource utilization, and hands-on activities. We built a website devoted to medical student education in radiology to address student, educator, and school curricular needs and surveyed students to assess the...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2020.08.021
更新日期:2020-09-21 00:00:00
abstract:RATIONAL AND OBJECTIVES:This study aims to evaluate the diagnostic utility of breast imaging using transmission ultrasound. We present readers' accuracy in determining whether a breast lesion is a cyst versus a solid using transmission ultrasound as an adjunct to mammography. MATERIALS AND METHODS:This retrospective m...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2017.03.024
更新日期:2017-09-01 00:00:00
abstract:RATIONAL AND OBJECTIVES:Computer-aided detection (CAD) systems are intended to improve performance. This study investigates how CAD might actually interfere with a visual search task. This is a laboratory study with implications for clinical use of CAD. METHODS:Forty-seven naive observers in two studies were asked to ...
journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2012.05.013
更新日期:2012-10-01 00:00:00