Results 61 to 70 of about 7,175 (216)

Hydrogel Microtube Drug Carrier for Catheter‐Based Intravascular Therapy

Advanced Healthcare Materials, EarlyView.
This paper proposes hydrogel microtube carriers composed of barium alginate gel, enabling long‐term vascular retention without interrupting blood flow. Intravascular treatments have long been attracting attention for therapeutic efficacy, yet practical delivery methods remained unestablished.
Shota Sato, Hiroki Ohta, Naoki Takakura, Kentaro Kasa, Teppei Komatsu, Dai Kejia, Misato Yoshioka, Hirotaka James Okano, Hiroaki Onoe   +8 more
wiley   +1 more source

The diagnostic performance of transcranial Doppler ultrasound and carotid duplex in the diagnosis of cerebral small vessel disease

The Egyptian Journal of Radiology and Nuclear Medicine
Background and rationale Cerebral small vessel disease is a frequent, long-term, and progressing vascular disease accounting for twenty percent of whole strokes and twenty-five percent of ischemic strokes.
Afaf Mohamed, Sara Gamal, Sama Ayman, Hatem El-Azizi   +3 more
doaj   +1 more source

Doppler ultrasound hemodynamic assessment in preeclampsia

Medical Journal of Babylon, 2018
Background: Preeclampsia (PE) is the main factor in maternal mortality across the world, affecting 5%–8% of pregnant women. The impairment in placental perfusion due to vascular abnormalities leads to clinical presentations and is detectable by Doppler ...
Azad Saleem Hassan, Maysaloon Shaman Saeed   +1 more
doaj   +1 more source

Engineered Microvascular Model of the Blood–Brain–Tumor Barrier Reveals Endothelial Remodeling in Diffuse Midline Glioma

Advanced Healthcare Materials, EarlyView.
We developed a patient‐derived, functional microfluidic model of the diffuse midline glioma (DMG) blood–brain–tumor barrier (BBTB) comprised of endothelial cells, astrocytes, pericytes, and tumor cells. The system forms perfusable microvasculature, reveals the BBTB retains vascular integrity, identifies DMG‐specific transcriptomic changes distinct from
Kimberly R. Bennett, Yann S. Vanrobaeys, Tessy Teboh, Zakiya Smith, Anderson Scott, Cynthia Hajal, Paula T. Hammond, Joelle P. Straehla   +7 more
wiley   +1 more source

Middle Cerebral Artery Arrow Sign

Western Journal of Emergency Medicine, 2014
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Zachary D. Levy, Richard E. Temes, Amir R. Dehdashti   +2 more
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

ARTERIAL SUPPLY OF THE CEREBRAL CORTEX IN CATTLE (Bos primigenius f. dom.)

Slovenian Veterinary Research, 2016
Studies of the vascularization of the cerebrum in cattle were performed on 60 cerebral hemispheres received from a meat-processing plant in Bydgoszcz, Poland. The sex of the cattle was not determined.
Benedykt Skoczylas, Witold Brudnicki, Krzysztof Kirkiłło-Stacewicz, Włodzimierz Nowicki, Jan Wach   +4 more
doaj   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Quantitative evaluation using single-photon emission computed tomography with acetazolamide is reliable for preoperative evaluation before cardiac surgery in severe carotid intracranial artery stenotic and/or occlusive disease: a case report

Journal of Cardiothoracic Surgery, 2019
Background Severe carotid and intracranial artery stenosis disease (CIAD) is major risk for perioperative stroke in coronary artery bypass grafting. Then, preoperative risk assessment is quite important.
Eiki Tayama, Ryusuke Mori, Tomohiro Ueda, Ken-ichi Imasaka, Yukihiro Tomita, Shigeki Morita   +5 more
doaj   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source