نتایج جستجو برای: standardized uptake value

تعداد نتایج: 917799  

2013
Tzung-Chi Huang Yao-Ching Wang

Respiratory motion blurs the standardized uptake value (SUV) and leads to a further signal reduction and changes in the SUV maxima. 4D PET can provide accurate tumor localization as a function of the respiratory phase in PET/CT imaging. We investigated thoracic tumor motion by respiratory 4D CT and assessed its deformation effect on the SUV changes in 4D PET imaging using clinical patient data....

Journal: :Asian Pacific journal of cancer prevention : APJCP 2014
Emre Can Polat Alper Otunctemur Emin Ozbek Huseyin Besiroglu Murat Dursun Kutan Ozer Mustafa Ozan Horsanali

BACKGROUND We investigated the correlation between standardized uptake value (SUVmax), tumor size and Fuhrman grade in patients with renal cell carcinoma (RC). MATERIALS AND METHODS We retrospectively analyzed the data of 54 patients with clear cell renal cell carcinoma histopathologically diagnosed who underwent fluorine-18 fluoro-2 deoxyglucose positron emission tomography/computed tomograp...

2014
Nadia Withofs Claire Bernard Catherine van der Rest Philippe Martinive Mathieu Hatt Sebastien Jodogne Dimitris Visvikis John A. Lee Philippe A. Coucke Roland Hustinx

PET/CT imaging could improve delineation of rectal carcinoma gross tumor volume (GTV) and reduce interobserver variability. The objective of this work was to compare various functional volume delineation algorithms. We enrolled 31 consecutive patients with locally advanced rectal carcinoma. The FDG PET/CT and the high dose CT (CTRT) were performed in the radiation treatment position. For each p...

2015
Gerald SMA Kerner Alexander Fischer Michel JB Koole Jan Pruim Harry JM Groen

BACKGROUND Deformable image registration allows volume of interest (VOI)- and voxel-based analysis of longitudinal changes in fluorodeoxyglucose (FDG) tumor uptake in patients with non-small cell lung cancer (NSCLC). This study evaluates the performance of the elastix toolbox deformable image registration algorithm for VOI and voxel-wise assessment of longitudinal variations in FDG tumor uptake...

2012
Serdar Şen Nilgün Kanlıoğlu Kuman Ekrem Şentürk Engin Pabuşcu Ertan Yaman

Extralobar sequestration with other bronchopulmonary malformations is commonly seen; however, the association of extralobar sequestration with renal aplasia is very rare. A 75-year-old female patient was admitted with back pain. Ultrasonography revealed aplasia of the left kidney and tomography showed 6 × 4.5 cm sized tumor in the left hemithorax at the posterobasal area. The lesion has focally...

2017
Takashi Norikane Yuka Yamamoto Yukito Maeda Takahisa Noma Hiroaki Dobashi Yoshihiro Nishiyama

BACKGROUND 18F-FDG PET has been used in sarcoidosis for diagnosis and determination of the extent of the disease. However, assessing inflammatory lesions in cardiac sarcoidosis using 18F-FDG can be challenging because it accumulates physiologically in normal myocardium. Another radiotracer, 3'-deoxy-3'-18F-fluorothymidine (18F-FLT), has been investigated as a promising PET tracer for evaluating...

2015
Tae Heon Kim Yong Bae Ji Chang Myeon Song Ji Young Kim Yun Young Choi Jeong Seon Park Kyung Tae

BACKGROUND The aim of this study was to investigate whether the maximum standardized uptake value (SUVmax) measured on fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) could be used as the primary means of differential diagnosis of thyroid nodules when tumor volume is assessed. METHODS We studied 192 patients who underwent preoperative 18F-FDG P...

2014
HIROKO SEINO SHUICHI ONO HIROYUKI MIURA SATOKO MOROHASHI YUNYAN WU FUMIYASU TSUSHIMA YOSHIHIRO TAKAI HIROSHI KIJIMA

Incidental 18F-fluorodeoxyglucose (18F-FDG) uptake in the prostate is often experienced in clinical practice; however, it is difficult to determine whether incidental uptake is indicative of a malignancy or benign state based on the maximum standardized uptake value (SUVmax). In the present study, we investigated the clinical significance of incidental prostate uptake by 18F-FDG positron emissi...

Journal: :Nuclear medicine and molecular imaging 2011
Hee-Sung Song Su Jin Lee Seok-Ho Yoon Jandee Lee Euy-Young Soh Young-Sil An Joon-Kee Yoon

PURPOSE We investigated the clinical significance of diffuse uptake in remaining thyroid after unilateral lobectomy for thyroid cancer. METHODS A total of 144 thyroid cancer patients who underwent (18)F-FDG PET/CT after lobectomy were enrolled in the present study. The PET/CT images were evaluated for the presence of diffuse (18)F-FDG uptake with maximum SUV (SUVmax) >2.0 in the residual thyr...

2014
Hendrik J Harms Stefan de Haan Paul Knaapen Cornelis P Allaart Mischa T Rijnierse Robert C Schuit Albert D Windhorst Adriaan A Lammertsma Marc C Huisman Mark Lubberink

Background: The aims of this study were to determine the optimal tracer kinetic model for [C]-meta-hydroxyephedrine ([C]HED) and to evaluate the performance of several simplified methods. Methods: Thirty patients underwent dynamic 60-min [C]HED scans with online arterial blood sampling. Single-tissue and both reversible and irreversible two-tissue models were fitted to the data using the metabo...

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