MRI-Based Attenuation Correction for PET/MRI Using Multiphase Level-Set Method

• Published in: Journal of Nuclear Medicine Vol. 57; no. 4; pp. 587 - 593
• Main Authors: An, Hyun Joon, Seo, Seongho, Kang, Hyejin, Choi, Hongyoon, Cheon, Gi Jeong, Kim, Han-Joon, Lee, Dong Soo, Song, In Chan, Kim, Yu Kyeong, Lee, Jae Sung
• Format: Journal Article
• Language: English
• Published: United States Society of Nuclear Medicine 01.04.2016
• Subjects: Aged; Algorithms; Bone and Bones - diagnostic imaging; Electromagnetic Fields; Female; Humans; Image Processing, Computer-Assisted - methods; Magnetic fields; Magnetic Resonance Imaging - methods; Male; Middle Aged; Multimodal Imaging - methods; NMR; Nuclear magnetic resonance; Nuclear medicine; Parkinson Disease - diagnostic imaging; Positron-Emission Tomography - methods; Radiopharmaceuticals; Tropanes; brain PET; PET/MRI; attenuation correction; level-set segmentation

Inaccuracy in MR image-based attenuation correction (MR-AC) leads to errors in quantification and the misinterpretation of lesions in brain PET/MRI studies. To resolve this problem, we proposed an improved ultrashort echo time MR-AC method that was based on a multiphase level-set algorithm with main...