نتایج جستجو برای: sentinel 2
تعداد نتایج: 2536283 فیلتر نتایج به سال:
BACKGROUND To report our experience with sentinel lymph node biopsy for staging patients with conjunctival melanoma. METHODS A prospective review of patients with conjunctival melanoma who underwent sentinel lymph node biopsy at St Bartholomew's Hospital from May 2008 to May 2012. The selection criterion for sentinel node biopsy depended on the tumour thickness (≥2 mm) and location of the con...
AIMS AND BACKGROUND Sentinel lymph node biopsy has been accepted as a standard procedure for early stage breast cancer. In this retrospective analysis, the results obtained with different methodological approaches using radiocolloid with or without blue dye were examined. METHODS A total of 158 sentinel lymph node biopsies were performed in 152 patients. Group A (85 patients) underwent lympha...
The study of land cover and use dynamics are fundamental to understanding the radical changes that human activity is causing locally globally analyse continuous metamorphosis landscape. In Europe, Copernicus Program offers numerous territorial monitoring tools users decision makers, such as Sentinel data. This research aims at developing implementing a mapping change detection methodology throu...
Systematic quantification and monitoring of forest biophysical and biochemical variables is required to assess the response of ecosystems to climate change and gain a deeper understanding of the carbon cycle. Red-Edge Position (REP) is a hyperspectrally detectable parameter, which is sensitive to Chlorophyll (Chl) content. In the current study, REP was modelled for Norway spruce Forest canopy R...
In the last few decades, researchers have developed a plethora of hyperspectral Earth Observation (EO) remote sensing techniques, analysis and applications. While hyperspectral exploratory sensors are demonstrating their potential, Sentinel-2 multispectral satellite remote sensing is now providing free, open, global and systematic high resolution visible and infrared imagery at a short revisit ...
Background. Most institutions require a patient undergoing sentinel lymph node biopsy to go through nuclear medicine prior to surgery to be injected with radioisotope. This study describes the long-term results using intraoperative injection of radioisotope. Methods. Since late 2002, all patients undergoing a sentinel lymph node biopsy at the Yale-New Haven Breast Center underwent intraoperativ...
OBJECTIVE The reference standard for lymph-node staging in prostate cancer is currently an extended pelvic lymph-node dissection (ePLND), which detects most, but not all, regional lymph-node metastases. As an alternative to ePLND, sentinel-node dissection with preoperative isotope injection and imaging has been reported. The objective was to determine whether intraoperative sentinel-node detect...
Sentinel node biopsy can decrease the morbidity of breast cancer treatment significantly by sparing many patients of axillary lymph node dissection and resulting arm lymphedema. Despite widespread use of sentinel node mapping for breast cancer patients almost all aspects of this procedure are controversial; such as: type of the radiotracer, eligibility, time of injection, etc. One of these con...
Abandoned cropland may lead to a series of issues regarding the environment, ecology, and food security. In hilly areas, is prone be abandoned due scattered planting, relatively fewer sunlight hours, lower agricultural input–output ratio. Furthermore, impact rainfed differs from irrigated cropland; thus, corresponding land strategies vary accordingly. Unfortunately, monitoring still an enormous...
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