Evaluation of an Experimental Breath-holding Image Acquisition with Regard to Pulmonary Nodule Detection on Chest FDG PET Image

Autor:	Fujii Hirofumi, Moriyama Noriyuki, Sasaki Tatsuya, Nemoto Koichi, Iwabuchi Yuto, Fukushi Masahiro, Tsuda Keisuke
Rok vydání:	2010
Předmět:	medicine.medical_specialty Artifact (error) Radiation Chest imaging medicine.diagnostic_test business.industry Image quality Respiratory motion Positron emission tomography Pulmonary nodule medicine Image acquisition Acquisition time Radiology Nuclear medicine business
Zdroj:	RADIOISOTOPES. 59:587-598
ISSN:	1884-4111 0033-8303
Popis:	Breath-hold imaging has been performing more frequently to reduce the respiratory motion artifact in chest imaging by means of positron emission tomography (PET) using 2-deoxy-2-[18F]-fluoro-D-glucose(FDG). It is difficult to hold breath for 30 seconds or more. We evaluated an experimental breath-holding image acquisition using phantoms with regard to pulmonary nodule detection on chest FDG PET image to examine whether the total acquisition time could be reduced. Images obtained during 180 seconds of continuous movement were compared with static images recorded during 60 - 180 seconds (15 seconds×4, 6, 8, 10, 12 times). Although shorter acquisition times resulted in greater variability in background activity, images recorded under static conditions for 90 seconds (15 seconds×6 times) or less showed nodules that were smaller than those observable in images recorded during continuous movement for 180 seconds. Breath-holding therefore permits the detection of smaller nodules on chest FDG PET images at shorter acquisition times.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::49a0ee145f4e9f21cc5e055123ac0c3e https://doi.org/10.3769/radioisotopes.59.587 Zobrazit plný text záznamu