Results 41 to 50 of about 3,648,515 (283)

Extracellular matrix remodeling and immune reprogramming drive residual tumor progression of liver cancer after incomplete microwave ablation

open access: yesMolecular Oncology, EarlyView.
Incomplete microwave ablation (iMWA) of liver cancer triggers a biphasic progression in residual tumors. At Day 3, the microenvironment is characterized by acute inflammatory responses and extracellular matrix (ECM) remodeling. By Day 14, a profound shift occurs toward oncogenic signal transduction and immunosuppression, marked by macrophage ...
Yu Liu   +9 more
wiley   +1 more source

Research hotspots and prospects of clinical application in gastric ultrasound

open access: yes肿瘤影像学, 2021
With the development of oral ultrasound contrast agents and the continuous accumulation of experience, diagnosing gastric diseases by ultrasound has become possible. However, due to the particularity of the gastric cavity organs, gastric ultrasound still
REN Weiwei, SHEN Li, SUN Liping
doaj  

Pulsing and Detection Strategies for Contrast-Enhanced Ultrasound: A Narrative Review

open access: yesIEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control, 2023
Contrast-enhanced imaging has grown significantly in the past two decades. Technology has evolved from imaging based on linear principles to elaborate pulsing and microbubble-specific detection strategies.
Sapna R. Bisht   +5 more
doaj   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

open access: yesFEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová   +2 more
wiley   +1 more source

Ultrasound contrast-agent improves imaging of lower limb occlusive disease

open access: yes, 2003
Objectives: to evaluate if ultrasound contrast-agent infusion could improve duplex-ultrasound imaging of peripheral arterial disease (PAD) and increase the agreement with digital subtraction arteriography (DSA). Design: prospective and consecutive study.
Jensen, F   +4 more
core   +1 more source

Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle   +4 more
wiley   +1 more source

Ultrasonic Contrast Portography for Demonstration of Intrahepatic Porto-systemic Shunts

open access: yesJournal of Medical Ultrasound, 2016
Spontaneous intrahepatic porto-systemic shunts (IHPSS) can be disclosed with ultrasound (US) and color Doppler ultrasound (CDU). However, direct evidence of the shunt on US or CDU may not be convincing. In this report we demonstrate the presence of IHPSS
Yi-Hong Chou   +7 more
doaj   +1 more source

Screening and Early Diagnosis of Hepatocellular Cancer and Optimization of Diagnostic Imaging Techniques: A Review and Conclusion of the Expert Panel

open access: yesРоссийский журнал гастроэнтерологии, гепатологии, колопроктологии, 2023
Аim: to describe modern approaches for screening and early diagnosis of hepatocellular carcinoma (HCC).Key points. Screening for HCC in high-risk groups (cirrhosis of any etiology, patients with chronic viral hepatitis B and patients with F3 liver ...
V. V. Breder   +9 more
doaj   +1 more source

Ultrasound contrast agents : dynamics of coated bubbles [PDF]

open access: yes, 2010
Contrast-enhanced ultrasound imaging relies on the nonlinear scattering of microbubbles suspended in an ultrasound contrast agent. The bubble dynamics is described by a Rayleigh-Plesset-type equation, and the success of harmonic imaging using contrast agents has always been attributed to the nonlinear behavior predicted by this equation. Contrast agent
openaire   +1 more source

Microbubbling and microencapsulation by co-axial electrohydrodynamic atomization [PDF]

open access: yes, 2009
Microbubbles coated with polymers or surfactants have been used in medical imaging for several years as ultrasound contrast agent particles and are now being investigated by researchers as drug and gene delivery vehicles and blood substitutes. Current
Farook, U.
core  

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