Results 61 to 70 of about 7,250 (137)

Comparison of novel multi-level Otsu (MO-PET) and conventional PET segmentation methods for measuring FDG metabolic tumor volume in patients with soft tissue sarcoma

EJNMMI Physics, 2017
Background We have previously developed a novel and highly consistent PET segmentation algorithm using a multi-level Otsu method (MO-PET). The aim of this study was to evaluate the reliability of MO-PET compared to conventional PET segmentation methods ...
Inki Lee, Hyung-Jun Im, Meiyappan Solaiyappan, Steve Y. Cho   +3 more
doaj   +1 more source

Nghiên cứu ứng dụng trí tuệ nhân tạo chẩn đoán sự cố tiềm ẩn trong máy biến áp theo phương pháp phân tích khí hòa tan

Tạp chí Khoa học và Công nghệ
Phân tích khí hòa tan trong dầu cách điện là phương pháp phổ biến để theo dõi tình trạng máy biến áp (MBA) ngâm dầu. Các tổ chức tiêu chuẩn quốc tế và các nhà nghiên cứu đã phát triển nhiều phương pháp như: phương pháp tỷ lệ Doernenburg, tỷ lệ Roger, tỷ ...
Nguyễn Văn Ngà, Ngô Huy Chiến, Đào Trực, Trần Đình Thọ, Nguyễn Văn Lục, Trần Huy Vũ   +5 more
doaj  

Optimizing the prognostic capacity of baseline 18F-FDG PET/CT metabolic parameters in extranodal natural killer/T-cell lymphoma by using relative and absolute thresholds

Heliyon
Objectives: To investigate the prognostic capacity of baseline 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) metabolic parameters in extranodal natural killer/T-cell lymphoma (ENKTCL), and the influence of ...
Ying-Ming Zhu, Pan Peng, Xin Liu, Shu-Nan Qi, Shu-Lian Wang, Hui Fang, Yong-Wen Song, Yue-Ping Liu, Jing Jin, Ning Li, Ning-Ning Lu, Hao Jing, Yuan Tang, Bo Chen, Wen-Wen Zhang, Yi-Rui Zhai, Yong Yang, Bin Liang, Rong Zheng, Ye-Xiong Li   +19 more
doaj   +1 more source

Metabolic tumour volume as a prognostic factor for oral cavity squamous cell carcinoma treated with primary surgery

Journal of Otolaryngology - Head and Neck Surgery, 2014
Background Metabolic tumour volume (MTV) obtained from pre-treatment 18 F-fluorodeoxydeglucose positron emission tomography with computed tomography (PET-CT) has been validated as an independent predictive factor of outcomes in head and neck cancer ...
Han Zhang, Hadi Seikaly, Jonathan T Abele, Dean T Jeffery, Jeffrey R Harris, Daniel A O'Connell   +5 more
doaj   +1 more source

High-Accurate Parameter Identification of PEMFC Using Advanced Multi-Trial Vector-Based Sine Cosine Meta-Heuristic Algorithm

IEEE Access
Development and modeling of proton exchange membrane fuel cells (PEMFCs) need accurate identification of unknown factors affecting mathematical models. The trigonometric function-based sine cosine algorithm (SCA) may solve such problems, but it traps in ...
Badreddine Kanouni, Abdelbaset Laib, Salah Necaibia, Abdelbasset Krama, Ilyas Bennia, Sertac Bayhan   +5 more
doaj   +1 more source

Prognostic value of metabolic tumor volume of pretreatment 18F-FAMT PET/CT in non-small cell lung Cancer

BMC Medical Imaging, 2018
Background This study aimed to determine the prognostic value of positron emission tomography (PET) metabolic parameters—namely metabolic tumor volume (MTV), total lesion glycolysis (TLG), and total lesion retention (TLR)—on fluorine-18 (18F ...
Soma Kumasaka, Takahito Nakajima, Yukiko Arisaka, Azusa Tokue, Arifudin Achmad, Yasuhiro Fukushima, Kimihiro Shimizu, Kyoichi Kaira, Tetsuya Higuchi, Yoshito Tsushima   +9 more
doaj   +1 more source

Merits of 18F-FDG PET/CT metabolic tumor volume for prediction of occult axillary lymph node metastasis in luminal early breast cancer patients with clinical and radiologically negative axilla

The Egyptian Journal of Radiology and Nuclear Medicine
Background To see if pre-treatment 18F-FDG PET/CT metabolic tumor volume (MTV) might predict occult axillary lymph node metastases (ALNM) in luminal early breast cancer (BC) with negative axilla on clinical examination, radiological studies, and ...
Mohamed H. M. Sayed, Ahmed Ibrahim Tawfik, Nsreen R. A. Mohamadien   +2 more
doaj   +1 more source

Prognostic value of metabolic tumor volume on [18F]FDG PET/CT in addition to the TNM classification system of locally advanced non-small cell lung cancer

Cancer Imaging
Purpose Staging of non-small cell lung cancer (NSCLC) is commonly based on [18F]FDG PET/CT, in particular to exclude distant metastases and guide local therapy approaches like resection and radiotherapy. Although it is hoped that PET/CT will increase the
Alexander Brose, Isabelle Miederer, Jochem König, Eleni Gkika, Jörg Sahlmann, Tanja Schimek-Jasch, Mathias Schreckenberger, Ursula Nestle, Jutta Kappes, Matthias Miederer   +9 more
doaj   +1 more source

Cross‐Sectional Analysis of Metabolic Tumor Burden Detected by F‐18 FDG PET/CT and Circulating Tumor DNA in Advanced Breast Cancer

Cancer Medicine
Background This study investigated the relationship between circulating tumor DNA (ctDNA) parameters and metabolic parameters from FDG PET/CT in advanced breast cancer (ABC) patients. Methods In this retrospective single‐center study, 47 ABC patients who
Recep Halit Tokac, Ekin Cemre Bayram Tokac, Ulkem Yararbas, Ayca Aykut, Asude Durmaz, Haluk Akin, Aziz Murat Argon   +6 more
doaj   +1 more source

Toward reproducible metabolic tumor volume quantification in endometrial cancer: optimizing [¹⁸F]FDG PET/CT tumor segmentation methods. [PDF]

EJNMMI Res
Fasmer KE, Lindås S, Gulati A, Dybvik JA, Hodneland E, Krakstad C, Haldorsen IS.   +6 more
europepmc   +1 more source