Peritherapeutic Hemodynamic Changes of Carotid Stenting Evaluated with Quantitative DSA in Patients with Carotid Stenosis

Abstract

BACKGROUND AND PURPOSE:Quantitative data from DSA have become important tools for understanding hemodynamic changes of intracranial lesions. In this study, we evaluated 8 hemodynamic parameters in patients before and after carotid artery angioplasty.

Patterns of vascularization and surgical morbidity in juvenile nasopharyngeal angiofibroma: A case series, systematic review, and meta‐analysis

“…The lack of uniformity of cases compiled via a meta‐analysis prevents us from overcoming this limitation with inconsistent follow‐up times and varying definitions of disease recurrence versus residual tumor also confounding analysis. Another limitation of this study is the state‐of‐the‐art methods of angiographic evaluation at the time of embolization that did not routinely calculate vascular flow; however, newer techniques, including quantitative digital subtraction angiography, could provide additional insight . With the development and use of flow rate analysis to better characterize feeder vessel contribution, we will be able to more accurately prioritize vessels of importance during embolization.…”

Machine Learning Application With Quantitative Digital Subtraction Angiography for Detection of Hemorrhagic Brain Arteriovenous Malformations

“…A relative TTP was prolonged in a patient with the steno-occlusive arterial disease before stent placement compared with a normal control [25]. BAT, TTP, WO, FWHM, and AUCTDC were reduced in patients with carotid stenosis after stenting [7], indicating increased flow through the carotid artery after treatment. Additionally, TTP has been used to estimate the cerebral circulation time for the detection of vasospasms in patients with subarachnoid hemorrhages [26].…”

Automatic flow analysis of digital subtraction angiography using independent component analysis in patients with carotid stenosis

“…Nevertheless, quantifying CBF and CBV in the two-dimensional domain of DSA is challenging because of the difficulty associated with volumetric measurements and the overlying vasculature [ 27 ]. Through this automatic in-room TDC assessment, we could use Tmax, adjunct to MTT, as an angiographic marker for detecting perfusion deficits and evaluating the peritherapeutic treatment effect [ 34 ].…”