Abstract: Objective The aim of this study was to summarize the value of three-phase enhancement scan of 64-slice spiral CT in measuring hepatic hemangioma (HH) volume. Methods 88 patients with HH were enrolled in our hospital between June 2020 and March 2021, and all underwent 64-slice spiral CT three-phase enhancement scan. The enhancement volumes in different phases were detected and measured. Results Out of the 88 patients with HH, the CT plain scan showed that there were 122 lesions, including 54 cases (61.4%) with single lesions and 34 cases (38.6%) with multiple lesions; there were 95 lesions (77.9%) in the right lobe of livers and 27 lesions (22.1%) in the left lobe; there were 100 (82.0%) round or quasi-circular lesions, with clear boundaries, and 22 (18.0%) irregular lesions; there were 87 (71.3%) lesions with diameters of 2 to 10 cm and 35 (28.7%) lesions greater than 10 cm; the CT plain scan showed that there were 111 (91.0%) low-density, 7 (5.7%) iso-density and 4 (3.3%) high-density lesions; the enhancement scan showed that there were 102 (83.6%) lesions with marginal nodular and plaque-like enhancement in arterial phase, including 25 (24.5%) with mild, 37 (36.3%) with moderate and 40 (39.2%) with significant enhancement; in portal phase, there were 98 (80.3%) lesions filled with contrast agents, and the density as gradually decreased, and the other 24 (19.7%) lesions were not accompanied with enhancement; after 3D post-processing, the tumor volume and the arterial enhancement volume in lesions greater than 10 cm were(370.1±52.8)cm³ and (50.7±10.9)cm³, both significantly greater than [(118.8±24.6)cm³ and (42.3±10.6)cm³, respectively, P<0.05], while the arterial enhancement ratio of the lesions was (13.7±4.3)%, significantly less than [(35.6±10.2)%, P＜0.05] in lesions less than or equal to 10 cm. Conclusion The 64-slice spiral CT three-phase enhancement scan could determine the morphology, size and density of hepatic hemangioma, and the enhancement ratio of hepatic hemangioma in arterial phase could accurately reflect blood supply of the lesions, which might be beneficial to the subsequent intervention treatment.

Key words: Hepatic hemangioma, Spiral CT, Enhancement scan, Volume measurement