Assessment of Myocardial Microvascular Function: New Opportunities in Fast Computed Tomography

Daghini, Elena; Lerman, Lilach O.

doi:10.1016/j.tcm.2006.10.002

Cited by 4 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Evaluation of myocardial perfusion at rest and after infusion of vasodilators imposing cardiac challenge can reveal the presence of otherwise undetectable limited myocardial flow reserve, which might have a significant value for detection of borderline or very early alterations in cardiac microvascular function, as well as detecting increases in microvascular permeability that may reflect endothelial dysfunction or ischemic changes. 34 …”

Section: Myocardial Perfusionmentioning

confidence: 99%

New Frontiers in the Evaluation of Cardiac Patients for Noncardiac Surgery

Lavi

Daghini

et al. 2007

Anesthesiology

Self Cite

View full text Add to dashboard Cite

Section: Myocardial Perfusionmentioning

confidence: 99%

New Frontiers in the Evaluation of Cardiac Patients for Noncardiac Surgery

Lavi

Daghini

et al. 2007

Anesthesiology

Self Cite

View full text Add to dashboard Cite

“…The flat panel detector (FPD) based cone-beam computed tomography (CBCT) has a wide variety of applications in medicine. [1][2][3][4][5][6][7][8][9][10] These include early breast cancer detection, oral, maxillofacial, and musculoskeletal scanning, image guided intervention and intraoperative procedures, and image guided radiation therapy.…”

Section: Introductionmentioning

confidence: 99%

Feasibility study of a synchronized‐moving‐grid (SMOG) system to improve image quality in cone‐beam computed tomography (CBCT)

et al. 2012

View full text Add to dashboard Cite

show abstract

A technical solution to avoid partial scan artifacts in cardiac MDCT

et al. 2007

View full text Add to dashboard Cite

Quantitative evaluation of cardiac image data obtained using multidetector row computed tomography (CT) is compromised by partial scan reconstructions, which improve the temporal resolution but significantly increase image-to-image CT number variations for a fixed region of interest compared to full reconstruction images. The feasibility of a new approach to solve this problem is assessed. An anthropomorphic cardiac phantom and an anesthetized pig were scanned on a dual-source CT scanner using both full and partial scan acquisition modes under different conditions. Additional scans were conducted with the electrocardiogram (ECG) signal being in synchrony with the gantry rotation. In the animal study, a simple x-ray detector was used to generate a signal once per gantry rotation. This signal was then used to pace the pig's heart. Phantom studies demonstrated that partial scan artifacts are strongly dependent on the rotational symmetry of angular projections, which is determined by the object shape and composition and its position with respect to the isocenter. The degree of partial scan artifacts also depends on the location of the region of interest with respect to highly attenuating materials (bones, iodine, etc.) within the object. Singlesource partial scan images (165 ms temporal resolution) were significantly less affected by partial scan artifacts compared to dual-source partial scan images (82 ms temporal resolution). When the ECG signal was in synchrony with the gantry rotation, the same cardiac phase always corresponded to the same positions of the x-ray tube(s) and, hence, the same scattering and beam hardening geometry. As a result, the range of image-to-image CT number variations for partial scan reconstruction images acquired in synchronized mode was decreased to that achieved using full a)Author to whom correspondence should be addressed. Electronic

show abstract

Assessment of Myocardial Microvascular Function: New Opportunities in Fast Computed Tomography

Cited by 4 publications

References 32 publications

New Frontiers in the Evaluation of Cardiac Patients for Noncardiac Surgery

New Frontiers in the Evaluation of Cardiac Patients for Noncardiac Surgery

Feasibility study of a synchronized‐moving‐grid (SMOG) system to improve image quality in cone‐beam computed tomography (CBCT)

A technical solution to avoid partial scan artifacts in cardiac MDCT

Contact Info

Product

Resources

About