TABLE V.

Statistics of the hounsfield unit (HU) distributions for 17 structures across 120 CTA scans from the proposed method.

(HU)	Empirical percentiles			Percentile difference	Interpatient variability
Structure type	25%	Median	75%	|25%-75%|	SD of medians
LV	349	503	561	212	138
LA	503	543	577	73	163
LVM	47	74	101	54	14
LAA	372	507	576	204	128
RV	85	120	154	69	48
RA	65	96	125	61	42
AA	528	568	599	71	140
WH	44	115	380	336	40
SVC	81	114	145	65	97
IVC	43	68	93	50	27
PA	125	155	180	56	62
PV	461	507	547	86	161
DA	453	503	546	93	134
Spine	49	169	295	246	49
Liver	19	46	73	54	15
CW	31	71	132	101	20
Lung	−840	−791	−721	119	79