TABLE III.
Quantitative analysis of the numerical brain simulations: PET signal activity levels (Bq/cm3) ± standard deviation. For each combination of PET duration and MR contrast, the reconstruction result closest to the ground truth is depicted bold faced.
| (a) 10min PET dataset | ||||||
|---|---|---|---|---|---|---|
| CSF | GM | WM | Caudate | Insula | GBM lesion | |
| Ground truth | 0±0 | 22990±0 | 8450±0 | 22990±0 | 22990±0 | 25799±0 |
|
| ||||||
| EM | 6358±5048 | 18812±4977 | 10648±3366 | 20620±5057 | 18704±3817 | 22288±3776 |
| TGV Sep | 5838±5932 | 18993±4096 | 10719±3383 | 20718±4159 | 18605±3932 | 26472±2285 |
|
| ||||||
| Joint MPRAGE | ||||||
| Bowsher | 4489±4585 | 20292±3590 | 9804±2721 | 21959±1809 | 19794±3031 | 16307±629 |
| TGV Frob | 4746±5313 | 19709±3295 | 10375±2887 | 21422±2374 | 19239±3294 | 24602±2089 |
| TGV Nuc | 4089±4881 | 20056±3119 | 10228±2773 | 21553±2509 | 19506±3066 | 25932±2920 |
|
| ||||||
| Joint T2 | ||||||
| Bowsher | 5244±4869 | 19748±4360 | 10107±2984 | 21234±3922 | 19096±3858 | 16370±532 |
| TGV Frob | 4215±5301 | 19643±3143 | 10624±2941 | 21210±2503 | 19250±3144 | 24476±2008 |
| TGV Nuc | 3469±4591 | 20066±3018 | 10420±2901 | 21397±2606 | 19646±2860 | 25980±2616 |
|
| ||||||
| Joint FLAIR | ||||||
| Bowsher | 5215±5159 | 19101±3139 | 10817±2994 | 20358±2012 | 18981±2789 | 16678±928 |
| TGV Frob | 3702±5369 | 19711±3294 | 10719±3120 | 21206±2822 | 19322±3265 | 24762±2284 |
| TGV Nuc | 2910±4481 | 20081±3114 | 10605±3129 | 21324±2889 | 19678±2984 | 25907±2838 |
| (b) 5min PET dataset | ||||||
|---|---|---|---|---|---|---|
| CSF | GM | WM | Caudate | Insula | GBM lesion | |
| Ground truth | 0±0 | 22990±0 | 8450±0 | 22990±0 | 22990±0 | 25799±0 |
|
| ||||||
| EM | 6819±5078 | 18483±4861 | 10817±3461 | 19713±4681 | 18175±3898 | 23291±4090 |
| TGV Sep | 6214±5958 | 18743±4142 | 10850±3522 | 20114±3794 | 18403±3637 | 23550±4061 |
|
| ||||||
| Joint MPRAGE | ||||||
| Bowsher | 4872±4845 | 20026±3708 | 9950±2969 | 21654±2189 | 19461±3068 | 16154±693 |
| TGV Frob | 5169±5488 | 19409±3337 | 10553±3022 | 20901±2419 | 18937±3043 | 21693±2233 |
| TGV Nuc | 4488±5088 | 19780±3258 | 10388±2987 | 21006±2756 | 19275±2942 | 23052±3721 |
|
| ||||||
| Joint T2 | ||||||
| Bowsher | 5628±5047 | 19464±4421 | 10266±3185 | 20823±3934 | 18864±3636 | 16189±591 |
| TGV Frob | 4630±5494 | 19334±3163 | 10817±3050 | 20767±2518 | 18980±2855 | 21314±2135 |
| TGV Nuc | 3836±4844 | 19803±3139 | 10575±3086 | 20939±2727 | 19384±2770 | 23066±3715 |
|
| ||||||
| Joint FLAIR | ||||||
| Bowsher | 5429±5236 | 19015±3204 | 10827±3032 | 20244±2183 | 18841±2679 | 16360±1020 |
| TGV Frob | 4034±5590 | 19431±3323 | 10897±3215 | 20751±2779 | 19005±3010 | 21996±2393 |
| TGV Nuc | 3188±4706 | 19854±3215 | 10746±3286 | 20847±2900 | 19360±2867 | 23169±3678 |