yttrium/hypoxia

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13 niðurstöður

Yttrium-90 Radioembolization and Tumor Hypoxia: Gas-challenge BOLD Imaging in the VX2 Rabbit Model of Hepatocellular Carcinoma

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Rationale and objectives: To use a rapid gas-challenge blood oxygen-level dependent magnetic resonance imaging exam to evaluate changes in tumor hypoxia after ⁹⁰Y radioembolization (Y90) in the VX2 rabbit model.

Initial Report of Neodymium: Yttrium-Aluminum-Perovskite (Nd: YAP) Laser Use During Bronchoscopy.

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BACKGROUND : Neodymium:yttrium-aluminum-garnet laser used during bronchoscopy has been effective in treating airway obstruction. Other lasers with different properties have not been well described during bronchoscopy. The neodymium:yttrium-aluminum-perovskite (Nd:YAP) laser has different

Yttrium-90 radioembolization for colorectal cancer liver metastases: a prospective cohort study on circulating angiogenic factors and treatment response.

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BACKGROUND Yttrium-90 radioembolization (90Y-RE) as a treatment for liver tumours induces radiation damage and hypoxia in liver tissue, which is also a trigger for systemic release of angiogenic factors, potentially stimulating tumour growth. We examined changes in circulating angiogenic factors

Interaction of oxygen vacancies in yttrium germanates.

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Forming a good Ge/dielectric interface is important to improve the electron mobility of a Ge metal oxide semiconductor field-effect transistor. A thin yttrium germanate capping layer can improve the properties of the Ge/GeO(2) system. We employ electronic structure calculations to investigate the

Anaesthesia for resection of lesions of the trachea and main bronchi using the neodymium yttrium aluminium garnet (Nd YAG) laser. A report of 75 treatments in 52 patients.

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The management of anaesthesia and outcome of 75 treatments in 52 patients are discussed. Total intravenous anaesthetic techniques were used with venturi ventilation via a rigid bronchoscope. A number of complications occurred, but there was no death or major surgical complication. All complications

Cardiovascular pathology in acromegaly and some effects of the 90 yttrium implant in the hypophysis.

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Examination of the cardiovascular apparatus (cv) of 25 acromegalic patients revealed an increased incidence of cardiovascular pathology as against normal individuals. Acromegalic patients with arterial hypertension (AH) show a twice higher incidence of ischemic cardiopathy, cardiomegaly with obvious

The treatment of malignant endobronchial obstruction with laser ablation.

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BACKGROUND We compared a new endoscopic treatment for malignant endobronchial obstruction known as photodynamic therapy (PDT) with the more established therapy of neodymium: yttrium-aluminum garnet laser (Nd:YAG) therapy. METHODS A retrospective review was conducted of the medical records at our

Fiberoptic bronchoscopic Nd-YAG laser therapy in obstructive airway diseases.

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BACKGROUND This study reports the results of Neodymium-Yttrium-Aluminum Garnet (Nd-YAG) laser resection on benign and malignant obstructing airway diseases which has been done in our hospital for four years. The effect of this treatment on patients' arterial blood gases, during and after the process

Safety precautions for bronchoscopic Nd-YAG laser surgery.

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The application of the neodymium-yttrium aluminum garnet (Nd-YAG) laser in bronchoscopy originated in Europe in 1981 and is now widespread in the United States. Transmissible through flexible fiberoptic quartz fibers and an efficient coagulator of tissue, the Nd-YAG laser deeply penetrates tissue

Tissue viability measurement by in situ fluorometry.

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A prototype laser-fiber optic based sensor for in situ monitoring of nicotinamide adenine dinucleotide (NADH) has been developed. This system is based on a compact neodymium-yttrium-aluminum-garnet (Nd:YAG) laser with associated harmonic generators. Light distribution to and from tissue is handled

Mobilization and partitioning of rare earth elements in the presence of humic acids and siderophores.

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Developing rare earth elements (plus yttrium, REY) as a group of environmental tracer requires comprehensive understandings in their geochemical behaviors associated with natural organic matter. Recent work highlighted the promotions on REY mobilization and cerium oxidation by siderophores during

Unique aspects of supportive care using monoclonal antibodies in cancer treatment.

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The "magic bullet" era of targeted cancer therapy began with the United States Food and Drug Administration approval of rituximab for the treatment of B-cell lymphoma in the late fall of 1997. Since then, several additional anticancer antibody products have received regulatory approval, including

Annealing-modulated nanoscintillators for nonconventional X-ray activation of comprehensive photodynamic effects in deep cancer theranostics

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Photodynamic therapy (PDT), which involves the generation of reactive oxygen species (ROS) through interactions of a photosensitizer (PS) with light and oxygen, has been applied in oncology. Over the years, PDT techniques have been developed for the treatment of deep-seated cancers. However, (1) the

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