Histotripsy Liquefaction of Large Hematoma for Intracerebral Hemorrhage Using Millisecond-Length Ultrasound Pulse Groups Combined With Fundamental and Second Harmonic Superposition: A Preliminary Study

2020 ◽  
Vol 46 (5) ◽  
pp. 1244-1257
Author(s):  
Yujiao Li ◽  
Yehui Liu ◽  
Ruixin Li ◽  
Mingzhu Lu ◽  
Xuan Wang ◽  
...  
Keyword(s):  
Intracerebral Hemorrhage ◽  
Second Harmonic ◽  
Preliminary Study ◽  
Large Hematoma ◽  
Ultrasound Pulse

Asymmetrical Diphenylpolyene Pendant Polymers for Nonlinear Optical Activity

1990 ◽  
Vol 214 ◽  
Author(s):  
Linda S. Sapochak ◽  
David W. Polis ◽  
Larry R. Dalton ◽  
Charles W. Spangler
Keyword(s):  
Nonlinear Optical ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Device Development ◽  
High Laser ◽  
Nlo Materials ◽  
Donor Acceptor ◽  
Recent Activity ◽  
Preliminary Study

ABSTRACTRecent activity in the development of nonlinear optical (NLO) materials with high second order susceptibilities has prompted the development of a wide variety of pendant polymers which possess desirable properties for device development, including high Tg minimal relaxation of the poled matrix, and high laser damage threshold. Ideal candidates for such systems are asymmetrically substituted oligomers of polyacetylenes such as dimethylaminonitrostilbene (DANS) and corresponding higher order oligomers. We report here a preliminary study of the synthesis of asymmetrically substituted donor/acceptor diphenyl-capped polyenes and thienylene vinylene oligomers attached as pendant moieties on polyvinylphenol (PVP) for second harmonic generation.

scholarly journals Decompressive hemicraniectomy for spontaneous intracerebral hemorrhage

2013 ◽  
Vol 34 (5) ◽  
pp. E5 ◽  
Author(s):  
Satoru Takeuchi ◽  
Kojiro Wada ◽  
Kimihiro Nagatani ◽  
Naoki Otani ◽  
Kentaro Mori
Keyword(s):  
Intracranial Pressure ◽  
Intracerebral Hemorrhage ◽  
Mortality Rates ◽  
Present Knowledge ◽  
Spontaneous Intracerebral Hemorrhage ◽  
Hematoma Volume ◽  
Safety And Efficacy ◽  
Decompressive Hemicraniectomy ◽  
Optimum Management ◽  
Large Hematoma

Intracerebral hemorrhage (ICH) is devastating, with high mortality rates, but its optimum management has not been fully established. Decompressive hemicraniectomy is a surgical procedure used to relieve the malignant elevation of intracranial pressure. The application of decompressive hemicraniectomy in patients with hemispheric ICH has been much less common, although several studies have shown the usefulness of this procedure for large hemispheric ICH. In this review, the present knowledge of the safety and efficacy of this procedure are evaluated. The authors conclude that decompressive hemicraniectomy with hematoma evacuation for large ICH might be a safe and effective procedure in patients with severely disturbed consciousness and large hematoma volume.

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