Improved bolus localization for videodensitometry

机译：改进了视频囊炎的推注定位

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Videodensitometric measurement of blood flow requires injection of spatially varying contrast density with minimal perturbation of the flow. Constant injection does not yield sufficient spatial gradients for flow measurement during peak flow and diastole, whereas pulsed injection superposes a time- varying perturbation on the measured flow. In order to avoid these drawbacks, we propose to pre-load the catheter injection tubing with spatially varying contrast density. This allows us to generate spatially localized contrast profiles in phantoms and to inject temporally varying contrast profiles in vivo without pulsatile injection. In phantom experiments we obtain better spatial localization of bolus using pre-loading than by pulsed injection of pure contrast material. Preliminary results indicate improvement in accuracy of blood flow measurements using pre-loaded bolus.

机译：血流的视频囊计量测量需要在流动的最小扰动中注射空间不同的对比度密度。恒定注射不会产生足够的空间梯度，以便在峰流动和舒张期间流动测量，而脉冲注射率在测量的流动上逐渐变化。为了避免这些缺点，我们建议预先装载导管注入管，具有空间不同的对比度密度。这允许我们在幽灵中产生空间局部局限性的对比度曲线，并在没有脉动注射的情况下在体内注入时间上变化的对比度。在Phantom实验中，我们使用预装载比通过脉冲喷射的纯对比材料获得更好的推注的空间定位。初步结果表明使用预先装载的推注的血流测量精度的提高。

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《Conference on physiology and function from multidimensional images》|1999年||共5页
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Robert A. Close; Simon D. Shpilfoygel; Reza Jahan; Gary R. Duckwiler; Daniel J. Valentino;
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中图分类 X线诊断学;
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2. Insulin degludec improves glycaemic control with lower nocturnal hypoglycaemia risk than insulin glargine in basal-bolus treatment with mealtime insulin aspart in Type 1 diabetes (BEGIN? Basal-Bolus Type 1): 2-year results of a randomized clinical trial [J] . BodeB.W., BuseJ.B., FisherM., Diabetic medicine: A journal of the British Diabetic Association . 2013,第11期

机译：在1型糖尿病（BEGIN？Basal-Bolus 1型）中，就餐时服用门冬胰岛素的基础大剂量治疗，胰岛素degludec可以比甘精胰岛素改善夜间血糖低的血糖控制风险：一项为期2年的随机临床试验结果
3. Automated bolus advisor control and usability study (ABACUS): does use of an insulin bolus advisor improve glycaemic control in patients failing multiple daily insulin injection (MDI) therapy? [NCT01460446] [J] . David A Cavan, Ralph Ziegler, Iain Cranston, BMC Family Practice . 2012,第1期

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4. Improved bolus localization for videodensitometry [C] . Robert A. Close, Cedars-Sinai Medical Ctr., Los Angeles, Conference on physiology and function from multidimensional images . 1999

机译：改进了视频密度测定的快速定位
5. An Improved Clustering based Monte Carlo Localization Approach for Cooperative Multi-robot Localization. [D] . Luo, Guanghui. 2011

机译：一种改进的基于聚类的蒙特卡洛协同多机器人协作定位方法。
6. Automated bolus advisor control and usability study (ABACUS): does use of an insulin bolus advisor improve glycaemic control in patients failing multiple daily insulin injection (MDI) therapy? NCT01460446 [O] . David A Cavan, Ralph Ziegler, Iain Cranston, 2012

机译：自动推注顾问控制和可用性研究（ABACUS）：使用胰岛素推注顾问可改善每日多次胰岛素注射（MDI）治疗失败的患者的血糖控制吗？ NCT01460446
7. Insulin degludec improves glycaemic control with lower nocturnal hypoglycaemia risk than insulin glargine in basal–bolus treatment with mealtime insulin aspart in Type 1 diabetes (BEGIN ® Basal–Bolus Type 1): 2‐year results of a randomized clinical trial [O] . B. W. Bode, J. B. Buse, M. Fisher, 2013

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8. Resuscitation with a Bolus of Hypertonic Saline/Dextran Improves Renal Function Following Hemorrhage in Conscious Swine. [R] . Sondeen, J. L., Gonzaludo, G. A., Loveday, J. A., 1989

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Improved bolus localization for videodensitometry

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