Skip to main content
. Author manuscript; available in PMC: 2010 Jan 27.
Published in final edited form as: J Nucl Med. 2000 Oct;41(10):1760–1767.

TABLE 5.

Tumor Activity Quantification

Tumor radius
(cm)		 b ROR
(cm)		 Location Activity error*
(%)
3.63 0 26 Center −1.3
3.63 1/8 26 Center −0.2
3.63 1/5 26 Center +0.0
3.63 1/3 26 Center +0.5
3.63 0 22 Center +3.6
3.63 0 30 Center −6.5
3.63 0 26 Off-axis 1 +0.3
3.63 0 26 Off-axis 2 −1.2
3.63 1/8 26 Off-axis 1 +2.1
3.63 1/8 26 Off-axis 2 +1.0
3.63 1/5 26 Off-axis 1 +2.6
3.63 1/5 26 Off-axis 2 +1.8
3.63 1/3 26 Off-axis 1 +3.6
3.63 1/3 26 Off-axis 2 +3.3
3.63 Nonuniform 1 26 Center +1.3
3.63 Nonuniform 2 26 Center +1.8
2.88 0 26 Center −15.2
2.88 1/8 26 Center −11.7
2.88 1/5 26 Center −9.8
2.88 1/3 26 Center −6.6
2.29 0 26 Center −23.0
2.29 1/8 26 Center −14.6
2.29 1/5 26 Center −12.7
2.29 1/3 26 Center −6.7
1.68 0 26 Center −46.7
1.68 1/8 26 Center −37.3
1.68 1/5 26 Center −31.8
1.68 1/3 26 Center −22.7
*

Error is percentage difference between SPECT estimated value and true simulated value.