Polyvinyl Alcohol Cryogels for Acoustic Characterization of Phase-Change Contrast Agents.
Polyvinyl Alcohol Cryogels for Acoustic Characterization of Phase-Change Contrast Agents.
复制标题
DOI:
10.1016/j.ultrasmedbio.2022.01.007
复制
发表时间:
2022-05
影响因子:
2.9
通讯作者:
Dayton, Paul A.
中科院分区:
文献类型:
--
作者:
Durham, Phillip G.;Kim, Jinwook;Eltz, Katherine M.;Caskey, Charles F.;Dayton, Paul A.
Phase-change contrast agents (PCCAs) consisting of lipid-encapsulated low-boiling point perfluorocarbons can be used in conjunction with ultrasound for diagnostic and therapeutic applications. One benefit of PCCAs is site-specific activation, whereby the liquid core is acoustically vaporized into a bubble detectable via ultrasound imaging. For further evaluation of PCCAs in a variety of applications, it is useful to disperse these nanodroplets into an acoustically compatible stationary matrix. However, many traditional phantom preparations require heating, which causes premature thermal activation of low-boiling point PCCAs. Polyvinyl alcohol (PVA) cryogels do not require heat to set. Here we propose a simple method for the incorporation of the low-boiling point PCCAs utilizing octafluoropropane (OFP) and decafluorbutane (DFB) into PVA cryogels for a variety of acoustic characterization applications. We then demonstrate the utility of the phantoms by activating droplets with a focused transducer, visualizing the lesions with ultrasound imaging. At 1 MHz, consistent droplet activation was consistently observed at 2.0 MPa and 4.0 MPa for OFP and DFB respectively.
登录
查看更多内容
DOI:
10.1186/s40349-015-0029-4
发表时间:
2015
期刊:
Journal of therapeutic ultrasound
影响因子:
--
作者:
Moyer LC;Timbie KF;Sheeran PS;Price RJ;Miller GW;Dayton PA
通讯作者:
Dayton PA
影响因子:
--
作者:
Mullin, Lee;Gessner, Ryan;Kwan, James;Kaya, Mehmet;Borden, Mark A.;Dayton, Paul A.
通讯作者:
Dayton, Paul A.
影响因子:
10.8
作者:
Li DS;Schneewind S;Bruce M;Khaing Z;O'Donnell M;Pozzo L
通讯作者:
Pozzo L
DOI:
10.3109/02656736.2012.666709
发表时间:
2012
期刊:
International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group
影响因子:
--
作者:
O'Reilly MA;Hynynen K
通讯作者:
Hynynen K
DOI:
10.1109/tuffc.2011.2045
发表时间:
2011-09
期刊:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control
影响因子:
--
作者:
Carneal CM;Kripfgans OD;Krücker J;Carson PL;Fowlkes JB
通讯作者:
Fowlkes JB