Abstract
To evaluate the changes in splenic volume during hypovolemic shock and after recovery by use of multidetector computed tomography (MDCT). We investigated 22 cases who underwent MDCT during hypovolemic shock up to 3h after presentation, compared the splenic volume with that after recovery, and evaluated the volume difference. We compared the volume ratio (recovery/shock) for two age groups: under 60years (n=10) and 60years and over (n=12). For cases (n=10) undergoing CT examination twice after treatment, we compared the volume ratios by using the initial recovery CT and the second CT images. The average spleen volume in shock was 63cm(3); under normal conditions it was 132cm(3) (P<0.001). The average volume ratio for groups under 60years old was 2.34; for groups 60years and over it was 2.05 (P=0.051). The average volume ratio obtained by use of the initial post-recovery CT was 2.11; the ratio obtained by use of the second post-recovery CT was 2.16 (P=0.386). Our results revealed that splenic volume was reduced during hypovolemic shock and rapidly increased after recovery. Splenic contraction is an important CT finding in shock.
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