JoVE Visualize What is visualize?
Stop Reading. Start Watching.
Advanced Search
Stop Reading. Start Watching.
Regular Search
Find video protocols related to scientific articles indexed in Pubmed.
Interscan reproducibility of quantitative coronary plaque volume and composition from CT coronary angiography using an automated method.
Eur Radiol
PUBLISHED: 05-16-2014
Show Abstract
Hide Abstract
Quantitative measurements of coronary plaque volume may play a role in serial studies to determine disease progression or regression. Our aim was to evaluate the interscan reproducibility of quantitative measurements of coronary plaque volumes using a standardized automated method.
Related JoVE Video
Reproducibility of aortic annulus measurements by computed tomography.
Eur Radiol
PUBLISHED: 04-23-2014
Show Abstract
Hide Abstract
To evaluate a systematic approach for measurement of aortic annulus dimensions by cardiac computed tomography.
Related JoVE Video
Comparison of quantitative atherosclerotic plaque burden from coronary CT angiography in patients with first acute coronary syndrome and stable coronary artery disease.
J Cardiovasc Comput Tomogr
PUBLISHED: 02-15-2014
Show Abstract
Hide Abstract
Coronary CTA allows characterization of non-calcified and calcified plaque and identification of high-risk plaque features.
Related JoVE Video
Non-invasive measurement of coronary plaque from coronary CT angiography and its clinical implications.
Expert Rev Cardiovasc Ther
PUBLISHED: 08-30-2013
Show Abstract
Hide Abstract
Coronary CT angiography (CTA) is increasingly used worldwide for direct, non-invasive evaluation of the coronary arteries. Advances in computed tomography (CT) technology over the last decade have enabled such reliable imaging of the coronary arteries. Beyond arterial stenosis, coronary CTA also permits assessment of atherosclerotic plaque (including plaque burden) and coronary artery remodeling, previously only achievable through invasive means. It has been shown that coronary plaque volumes for non-calcified and mixed plaques and the arterial remodeling index, correlate closely with invasive intravascular ultrasound. Several studies have also shown a strong relationship of adverse plaque features imaged by coronary CTA with acute coronary syndrome, all-cause death, major adverse cardiovascular events and myocardial ischemia. The aim of this review is to summarize current methods for quantitative measurement of atherosclerotic plaque features from coronary CTA and to discuss their clinical implications.
Related JoVE Video
Automated attenuation-based selection of tube voltage and tube current for coronary CT angiography: Reduction of radiation exposure versus a BMI-based strategy with an expert investigator.
J Cardiovasc Comput Tomogr
PUBLISHED: 03-29-2013
Show Abstract
Hide Abstract
Recently developed automated algorithms use the topogram and the corresponding attenuation information before coronary CT angiography (CTA) to allow for an individualized anatomic-based selection of tube current (mAs) and voltage (kV).
Related JoVE Video
Comparison of accuracy of axial slices versus short-axis slices for measuring ventricular volumes by cardiac magnetic resonance in patients with corrected tetralogy of fallot.
Am. J. Cardiol.
PUBLISHED: 02-10-2009
Show Abstract
Hide Abstract
The best method to measure right (RV) and left (LV) ventricle volumes of patients with corrected tetralogy of Fallot is considered cardiac magnetic resonance (CMR). However, to date, no standard protocol to measure RV volumes by CMR exists. RV volumes can be measured from a stack of short-axis slices or a stack of axial slices through the patients chest. Therefore, the aim of this study was to determine whether short-axis or axial slices are more reliable for routine measurement of RV and LV volumes in patients with corrected tetralogy of Fallot. We studied consecutive patients with corrected tetralogy of Fallot (n = 46) undergoing routine CMR. The end-diastolic and end-systolic RV and LV volumes were measured by 2 investigators unaware of the results of the other measurements using short-axis and axial slices, and the inter- and intraobserver variances were compared. The design of the study was based on the Standards for Reporting of Diagnostic Accuracy. Interobserver variance was significantly smaller using axial slices than using short-axis slices for the RV end-systolic volumes (127.9%(2) vs 315.1%(2); p = 0.003), LV end-diastolic volumes (11.4%(2) vs 36.1%(2); p <0.001), and LV end-systolic volumes (31.9%(2) vs 176.1%(2); p <0.001). Intraobserver variance was significantly smaller using axial slices than using short-axis slices for the RV end-diastolic volumes (26.7%(2) vs 51.1%(2); p = 0.032), LV end-diastolic volumes (11.0%(2) vs 23.5%(2); p = 0.012), and LV end-systolic volumes (34.3%(2) vs 86.1%(2); p = 0.003). In conclusion, axial slices are more reproducible than short-axis slices for measuring ventricular volumes of patients with corrected tetralogy of Fallot by CMR.
Related JoVE Video
Patient-specific predictors of image noise in coronary CT angiography.
J Cardiovasc Comput Tomogr
Show Abstract
Hide Abstract
Coronary computed tomography (CT) angiography can be associated with high radiation exposure. Reduction of tube voltage from 120 kV to 100 kV can reduce the dose by up to 40%, but it also increases image noise.
Related JoVE Video
A method to determine suitable fluoroscopic projections for transcatheter aortic valve implantation by computed tomography.
J Cardiovasc Comput Tomogr
Show Abstract
Hide Abstract
In transcatheter aortic valve implantation (TAVI), optimal selection of fluoroscopic projections that permit orthogonal visualization of the aortic valve plane is important but may be difficult to achieve.
Related JoVE Video
Image quality of ultra-low radiation exposure coronary CT angiography with an effective dose <0.1 mSv using high-pitch spiral acquisition and raw data-based iterative reconstruction.
Eur Radiol
Show Abstract
Hide Abstract
We evaluated the potential of prospectively ECG-triggered high-pitch spiral acquisition with low tube voltage and current in combination with iterative reconstruction to achieve coronary CT angiography with sufficient image quality at an effective dose below 0.1 mSv.
Related JoVE Video
Multi-detector computed tomography is equivalent to trans-oesophageal echocardiography for the assessment of the aortic annulus before transcatheter aortic valve implantation.
Eur Radiol
Show Abstract
Hide Abstract
In transcatheter aortic valve implantation (TAVI), assessment of the aortic annulus is mandatory. We sought to investigate the correlation between trans-oesophageal echocardiography (TEE) and multi-detector computed tomography (MDCT) for annulus diameter assessment before TAVI.
Related JoVE Video

What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

How does it work?

We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

Video X seems to be unrelated to Abstract Y...

In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.