Iranian Journal of Nuclear Medicine. 2009; 17 (2): 42-49
in English
| IMEMR
| ID: emr-101977
ABSTRACT
In present PET/CT scanners, PET attenuation correction is performed by relying on the information given by CT scan. In the CT-based attenuation correction methods, dual-energy technique [DECT] is the most accurate approach, which has been limited due to the increasing patient dose. In this feasibility study, we have introduced a new method that can implement dual-energy technique with only a single energy CT scan. The implementation was done by CT scans of RANDO phantom at tube voltages of 80 kV[P] and 140 kV[P]. The acquired data was used to obtain conversion curves [which scale CT numbers at different kV[P] to each other], in three regions including lung tissue [HU<-100], soft tissue [-100setting:
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Index:
IMEMR (Eastern Mediterranean)
Main subject:
Tomography, X-Ray Computed
/
Radiography, Dual-Energy Scanned Projection
/
Phantoms, Imaging
/
Polyethylene
Language:
English
Journal:
Iran. J. Nucl. Med.
Year:
2009
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