Gadopentetic acid

Gadopentetic acid (Gd-DTPA) 是顺磁性造影剂，通常通过静脉内注射 (i.v.) 的方式用于 DCE-MRI 研究。血浆中的 Gadopentetic acid (Gd-DTPA) 的初始浓度。([Gd-DTPA 0]) 是 DCE-MRI 的重要参数。 [Gd-DTPA 0] 与使用的注射剂量相关并且随受试者而变化。剂量0.025 mmol/kg Gd-DTPA 可缩短采集时间，减少受试者受用时间，半衰期为 37 mins，平均停留时间为 53.8 mins，AUC为 3.3

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货号: ajce56440
CAS: 80529-93-7
别名: 钆喷酸; Gd-DTPA; gadolinium complex
分子式: C14H20GdN3O10
分子量: 547.57
纯度: >98%
溶解度: Water: 100 mg/mL (182.63 mM); DMSO: < 1 mg/mL (insoluble or slightly soluble)
储存: Store at -20°C, sealed storage, away from moisture and light
库存: 现货

Background

Gadopentetic acid (Gd-DTPA) is an paramagnetic contrast agent commonly implemented by a bolus intravenous injection (i.v.) in Dynamic contrast-enhanced MRI (DCE-MRI) studies. The initial concentration of Gadopentetic acid (Gd-DTPA) in the plasma ([Gd-DTPA0]) is an important parameter for DCE-MRI. [Gd-DTPA0] is related to the administered bolus dose and varies with subjects. A bolus of 0.025 mmol/kg Gd-DTPA offers shorter acquisition time and less exposure of subjects, with a half-life of 37.3 mins, a mean residence time of 53.8 mins, and an AUC of 3.37 ± 0.47 mmol/min/L[1].

[1]. Wan C, et al. Gd-DTPA-induced dynamic metabonomic changes in rat biofluids. Magn Reson Imaging. 2017 Dec;44:15-25. [2]. Taheri S, et al. Analysis of pharmacokinetics of Gd-DTPA for dynamic contrast-enhanced magnetic resonance imaging. Magn Reson Imaging. 2016 Sep;34(7):1034-40.