MORE CT HU NUMBERS, ct Hounsfield values for various tissue types Mosby's
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Air
-1000
Fat
-50*-100
Lung
-550*-950
Water
0
HEPATIC CYSTS, SIMPLE CYSTS
0*20
Cerebrospinal fluid
15
Dense bone
1500*2000
RENAL CELL CARCINOMA ENHANCED
20*25
HYPERDENSE CYSTS/INFECTION OR HEMORRHAGE
20*90
Blood
30*35
Gray matter
35*40
White matter
40*46
UNENHANCED SPLEEN (APPROX. 10 HU < LIVER)
40*60
NORMAL UNENHAHCED HEPATIC PARENCHYMA
45*65
INTERVERTEBRAL DISCS
50*100
Muscle
50*65
ANGIOMYOLIPOMA, BENIGN RENAL MASS
<10
AREAS OF CALCIUM ARE IDENTIFIED
>130
