Invention Grant
US07675038B2 Truncation compensation in transmission reconstructions for a small FOV cardiac gamma camera
有权
用于小型FOV心脏γ摄像机的传输重建中的截断补偿
- Patent Title: Truncation compensation in transmission reconstructions for a small FOV cardiac gamma camera
- Patent Title (中): 用于小型FOV心脏γ摄像机的传输重建中的截断补偿
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Application No.: US11845331Application Date: 2007-08-27
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Publication No.: US07675038B2Publication Date: 2010-03-09
- Inventor: Manjit Ray , Eric Grant Hawman , Ray Xu
- Applicant: Manjit Ray , Eric Grant Hawman , Ray Xu
- Applicant Address: US PA Malvern
- Assignee: Siemens Medical Solutions USA, Inc.
- Current Assignee: Siemens Medical Solutions USA, Inc.
- Current Assignee Address: US PA Malvern
- Agent Peter L. Kendall
- Main IPC: G01T1/166
- IPC: G01T1/166
Abstract:
A method and system for compensating truncated transmission projection data used for attenuation correction in a SPECT apparatus. The method and system include generating an initial estimate of a transmission reconstruction without modeling source geometry or detector collimator response and refining the transmission reconstruction by using the initial estimate with a modified model of the source geometry and the collimation geometry.
Public/Granted literature
- US20090057560A1 Truncation Compensation in Transmission Reconstructions for a Small FOV Cardiac Gamma Camera Public/Granted day:2009-03-05
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