Results 71 to 80 of about 63,636 (348)

What is Doppler ultrasound? [PDF]

, 2011
The term Doppler should be capitalized because it refers to Christian Johann Doppler, an Austrian physicist (1803–1853). He described a phenomenon whereby the frequency of sound changes when it is reflected off a moving object.
Vassallo, Pierre
core  

Effect of Pulse Shaping on Subharmonic Aided Pressure Estimation In Vitro and In Vivo. [PDF]

, 2016
OBJECTIVES: Subharmonic imaging (SHI) is a technique that uses the nonlinear oscillations of microbubbles when exposed to ultrasound at high pressures transmitting at the fundamental frequency ie, f METHODS: Eight waveforms with different envelopes were ...
Dave, Jaydev K., Eisenbrey, John R., Forsberg, Flemming, Gupta, Ipshita, Hazard, Christopher, Li, Huiwen, Liu, Ji-Bin, Sridharan, Anush, Stanczak, Maria, Wallace, Kirk, Wang, Ping, Wang, Xinghua   +11 more
core   +2 more sources

Abstract No. 250 Pancreatic Venous Anatomy for Trans-Portal Treatment of Pancreatic Cancers using Pressure Enabled Drug Delivery (PEDD) [PDF]

, 2023
M. Kwong, H. Spears, J. Pattee, E. Worley, G. McLennan   +4 more
openalex   +1 more source

RPS3‐Enriched Extracellular Vesicles Mediate Liver‐Spinal Cord Inter‐Organ Communication

Advanced Science, EarlyView.
Spinal cord injury activates the liver to send extracellular vesicles loaded with RPS3 protein to the lesion site. These vesicles are taken up by neural stem cells and astrocytes, triggering NF‐κB signaling, impairing the regeneration of neurons and myelin, and promotes harmful inflammation, ultimately hindering recovery.
Peiwen Song, Zuomeng Wu, Yixiang Dong, Yunxiong Fang, Shiyu Bian, Daokuan Wang, Huang Fang, Yunlei Liu, Wang Ying, Jun Qian, Tianyu Han, Cailiang Shen   +11 more
wiley   +1 more source

Conversion of Transplanted Mature Hepatocytes into Afp+ Reprogrammed Cells for Liver Regeneration After Injury

Advanced Science, EarlyView.
Donor‐derived tdTomato+ mature hepatocytes were FACS‐isolated and transplanted into Fah−/− host mice. During regeneration, these cells convert into proliferative, unipotent Afp+ rHeps. Their plasticity is governed by a PPARγ/AFP‐dependent metabolic switch, segregating into pro‐proliferative Afplow and pro‐survival Afphigh subpopulations.
Ting Fang, Chao Yang, Hua Qiu, Yuan Du, Xicheng Wang, Yuting Li, Mingyang Xu, Changcheng Liu, Xiuhua Li, Na Guo, Jun Shi, Wencheng Zhang, Zhiying He   +12 more
wiley   +1 more source

A new liver perfusion and preservation system for transplantation Research in large animals [PDF]

, 1990
A kidney perfusion machine, model MOX-100 (Waters Instruments, Ltd, Rochester, MN) was modified to allow continuous perfusion of the portal vein and pulsatile perfusion of the hepatic artery of the liver. Additional apparatus consists of a cooling system,
A. Jake Demetris, Belzer F O, Denmark S W, Greenway C V, Guy Lebeau, Hoffmann R M, Jamieson N V, Katsuhiko Yanaga, Leonard Makowka, Mitsuo Shimada, Moore F D, Ruey Rong Hwang, Saburo Kakizoe, Starzl T E, Starzl T E, Starzl T E, Thomas E. Starzl, Williams J W   +17 more
core   +1 more source

Pediatric Liver Transplantation: Then and Now [PDF]

, 2020
This paper reviews the past 50 years of liver transplantation in children from the perspective of patient demographics, perioperative patient management, surgical techniques, immunosuppression and patient ...
Banh, DPT, Carullo, PC, Davis, PJ, Tran, LT, Vitu, C   +4 more
core   +1 more source

Tumor Extracellular Vesicles lncOSLMT Drives Lung Inflammatory Premetastatic Niche Formation in Osteosarcoma via m6A‐Dependent hnRNPA2B1/COX‐2 Axis

Advanced Science, EarlyView.
Tumor‐derived extracellular vesicles program inflammatory lung premetastatic niches through selective delivery of long noncoding RNAs. This work reveals EVs‐associated lncOSLMT as a key driver of lung fibroblast activation via m6A‐dependent PTGS2 stabilization.
Hongbo Li, Zehao Guo, Yutong Zou, Jiongfeng Zhang, Jixiang Shi, Xihong Fu, Jian Tu, Hao Yao, Xuanxuan Lu, Lili Wen, Xianbiao Xie   +10 more
wiley   +1 more source

Recent Advances in the Pathogenesis and Clinical Evaluation of Portal Hypertension in Chronic Liver Disease

Gut and Liver
In chronic liver disease, hepatic stellate cell activation and degeneration of liver sinusoidal endothelial cells lead to structural changes, which are secondary to fibrosis and the presence of regenerative nodules in the sinusoids, and to functional ...
Kohei Kotani, Norifumi Kawada
doaj   +1 more source

Endoscopic Ultrasound-Guided Portal Pressure Measurement and Interventions [PDF]

Clinical Endoscopy, 2018
A growing number of studies have explored endoscopic ultrasound (EUS)-guided vascular catheterization. Potential clinical applications of EUS-guided portal venous access include angiography, measurement of the portosystemic pressure gradient, EUS-guided ...
Jason B. Samarasena, Kenneth J. Chang
doaj   +1 more source