نتایج جستجو برای: sentinel a1

تعداد نتایج: 39493  

2017
Ram C. Sharma Keitarou Hara Ryutaro Tateishi

This paper presents an evaluation of the multi-source satellite datasets such as Sentinel-2, Landsat-8, and Moderate Resolution Imaging Spectroradiometer (MODIS) with different spatial and temporal resolutions for nationwide vegetation mapping. The random forests based machine learning and cross-validation approach was applied for evaluating the performance of different datasets. Cross-validati...

Journal: :Canadian journal of surgery. Journal canadien de chirurgie 2001
D R McCready D M Ghazarian M S Hershkop J A Walker U Ambus I C Quirt

OBJECTIVE To document experience with sentinel lymph-node biopsy in patients who have already undergone a wide local excision for melanoma because in many centres previous wide excision has been a contraindication for sentinel lymph-node biopsy. DESIGN A prospective cohort study. SETTING A tertiary care academic cancer centre. PATIENTS One hundred patients who presented with cutaneous mel...

Journal: :Gut 2012
Yoko Tamada Hiroshi Yatsuhashi Naohiko Masaki Makoto Nakamuta Eiji Mita Tatsuji Komatsu Yukio Watanabe Toyokichi Muro Masaaki Shimada Taizo Hijioka Takeaki Satoh Yutaka Mano Toshiki Komeda Masahiko Takahashi Hiroshi Kohno Hajime Ota Shigeki Hayashi Yuzo Miyakawa Seigo Abiru Hiromi Ishibashi

OBJECTIVE To examine recent trends of acute infection with hepatitis B virus (HBV) in Japan by nationwide surveillance and phylogenetic analyses. METHODS During 1991 through 2009, a sentinel surveillance was conducted in 28 national hospitals in a prospective cohort study. Genotypes of HBV were determined in 547 patients with acute hepatitis B. Nucleotide sequences in the preS1/S2/S gene of g...

Journal: :Remote Sensing 2018
Abel Ramoelo Moses Azong Cho

Leaf nitrogen concentration (leaf N, %) is an essential component for understanding biogeochemical cycling. Leaf N is a good indicator of grass or forage quality, which is important for understanding the movements and feeding patterns of herbivores. Leaf N can be used as input for rangeland carrying capacity and stocking rate models. The estimation of leaf N has been successful using hyperspect...

Journal: :Nuclear medicine review. Central & Eastern Europe 2002
Tomasz Jastrzebski Andrzej Kopacz Piotr Lass

BACKGROUND The new trend in diagnosis of the lymph node is sentinel node biopsy. This method has become increasingly accepted as a minimally invasive alternative to routine axillary dissection. Although the results of numerous studies have shown that sentinel node biopsy can accurately determine the axillary nodal status, the identification rates and false-negative rates have been variable. The...

Journal: :CA: a cancer journal for clinicians 2006
Steven L Chen Douglas M Iddings Randall P Scheri Anton J Bilchik

Since the introduction of sentinel node biopsy in 1990 as a minimally invasive surgical technique for the diagnosis of melanoma lymphatic metastases, the number of applications has expanded. We review applications and the current status of sentinel node biopsy in melanoma, breast, colon, gastric, esophageal, head and neck, thyroid, and lung cancer. Variations on techniques specific to each orga...

Journal: :American journal of obstetrics and gynecology 2017
Anna Jo Bodurtha Smith Amanda Nickles Fader Edward J Tanner

BACKGROUND In the staging of endometrial cancer, controversy remains regarding the role of sentinel lymph node mapping compared with other nodal assessment strategies. OBJECTIVE We conducted a systematic review to evaluate the diagnostic accuracy and clinical impact of sentinel lymph node mapping in the management of endometrial cancer. DATA SOURCES We searched Medline, Embase, and the Coch...

Journal: :The American journal of tropical medicine and hygiene 2001
T R Burkot G O Maupin B S Schneider C Denatale C M Happ J S Rutherford N S Zeidner

Ixodes spinipalpis maintains Borrelia bissettii spirochetes in Colorado in a cycle involving wood rats and deer mice. This tick has been described as nidicolous, remaining either attached to its rodent hosts or in the rodent nest. Nidicolous ticks pose little risk of pathogen transmission to humans if they do not actively quest for hosts. To investigate the questing potential of I. spinipalpis,...

2014
Ni Ketut Susilarini Martahan Sitorus Catharina Yekti Praptaningsih Ondri Dwi Sampurno Arie Bratasena Ester Mulyadi Roselinda Rusli Ahmad Fandil Amalya Mangiri Hana Apsari Edy Hariyanto Gina Samaan

BACKGROUND A sentinel hospital-based severe acute respiratory infection (SARI) surveillance system was established in Indonesia in 2013. Deciding on the number, geographic location and hospitals to be selected as sentinel sites was a challenge. Based on the recently published WHO guideline for influenza surveillance (2012), this study presents the process for hospital sentinel site selection. ...

2004
Buddha Basnyat

Editor—Kell and Kerin wrote about sentinel lymph node biopsy in breast cancer and melanoma. This is a staging procedure with a well established role in breast cancer, reducing the need for dissection of the axillary node. The indications and advantages for sentinel lymph node biopsy in melanoma are not confirmed, and it is certainly not the established treatment implied in the editorial. Sentin...

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