Table 2.

MSE and ME between gold standard ${\mathit{BP}}_{\mathit{ND}}^{*}$ and ${\mathit{BP}}_{\mathit{ND}}$ at different 30-min acquisition windows averaged across 16 regions and 39 optimisation set subjects.

Time window (t= ts, te)						True CR		PCA CR		Mean CR
0,10	10,20	20,30	30,40	40,50	50,60	MSE	ME	MSE	ME	MSE	ME
•	•	•	◯	◯	◯	0.0089	0.0303	0.0085	0.0299	0.0085	0.0299
◯	•	•	•	◯	◯	0.0035	0.0202	0.0036	0.0202	0.0035	0.0211
◯	◯	•	•	•	◯	0.0008	0.0050	0.0010	0.0041	0.0012	0.0088
◯	◯	◯	•	•	•	0.0030	–0.0084	0.0032	–0.0090	0.0034	–0.0050

Note: True C_R uses the true reference region curve, PCA C_R and mean C_R extrapolate the reference region curve using the PCA C_Rand scaled mean C_R methods, respectively. All methods used the gold standard $R_1^{*}$.