2020年9月24日 · Cerebral blood volume (CBV) (often relative CBV: see below) is one of the parameters generated by perfusion techniques (CT perfusion and MR perfusion). CBV is defined as the volume of blood in a given amount of brain tissue, most commonly milliliters of blood per 100 g of brain tissue 1.

它是对选定感兴趣层面进行连续动态扫描，获得所选层面的每一像素的时间密度曲线，并通过数学模型处理得到：脑血流容量（cerebral blood volume，CBV）、脑血流流量（cerebral blood flow，CBF）、对比剂平均通过时间（mean transit time，MTT）、对比剂峰值时 …

In this study, we demonstrate that a method called standardization, applied to rCBV maps, is an objective means of translating all rCBV values to a consistent scale. This approach reduces interpatient and interstudy variability for the same tissue type, thus enabling easy and accurate visual and quantitative comparison across studies.

2023年8月15日 · Cerebral blood volume (CBV) maps derived from dynamic susceptibility contrast-enhanced (DSC) MRI are useful but not commonly available in clinical scenarios. To test image-to-image translation techniques for generating CBV maps from standard MRI sequences of brain tumors using the bookend technique DSC MRI as ground-truth references.

2024年5月16日 · 动态对比增强(DSC)MRI获得的脑血容量 (CBV)图是评价脑肿瘤进展的一种有效的方法。 尽管CBV图在临床实践中具有重要意义，但在采集和应用方面仍存在挑战。

2023年9月7日 · 脑血容量（cerebral blood volume，CBV） 是反映脑组织微环境的重要生理参数。 由于大脑基线CBV与基础代谢率正相关，CBV可作为评估脑组织活力和功能的敏感指标。

2021年6月4日 · 研究表明CBV与肿瘤微血管密度（microvessel density，MVD）和VEGF浓度相关。 测量CBV作为辅助指标有助于评判脑肿瘤的新生血管程度，分级和恶性度，鉴别肿瘤样病变，监测治疗效果等。

In this review, we attempt to discuss recently developed MRI approaches for the measurement of CBV in arterial and venous blood vessels separately. CBV measured in physiological units (ml blood/100 ml tissue) is referred to as absolute CBV, whereas CBV difference between functional stimulation and baseline periods normalized by the baseline ...

The clinical value of combining synthetic CBV maps and standard MRI scans of brain tumors was assessed in several clinical scenarios (tumor grading, prognosis prediction, differential diagnosis) using multicenter data sets (four external and one internal).

2019年2月15日 · This review attempts to summarize major efforts in the development of MRI techniques to measure arterial (CBVa) and venous CBV (CBVv) separately. Advantages and disadvantages of each type of method are discussed.