Methods RT3DE images were acquired from twenty-six patients with DLBCL before chemstherapy, after 2(100 mg/m2), 4(200 mg/m2) and 6(300 mg/m2) chemotherapy cycles for evaluation and analysis to obtain LV end-diastolic volume (EDV), end-systolic volume (ESV), systolic volume (SV) and ejection fraction (EF). Global longitudinal strain (GLS), global circumferential strain (GCS), left ventricular twist (LVtw) and left ventricular torsion (LVtor) were also calculated.
Results Changes in EDV[(71.4±14.8)mL, (76.3±15.6)mL, (81.7±19.5)mL, (79.7±16.2)mL]、ESV[(22.9±5.1)mL, (25.1±5.4)mL, (27.1±8.1)mL, (26.6±6.7)mL], SV[(48.6±10.4)mL, (51.2±11.0)mL, (54.6±12.8)mL, (53.1±10.7)mL], EF[(67.9±3.1)%, (66.9±3.1)%, ( 67.0±4.1)%, (66.7±3.6)%], GLS[(-26.9±4.8)%, (-27.1±4.4)%, (-25.5±7.5)%, (-26.7±7.1)%], GCS[(-34.7±2.5)%, (-33.7±3.4)%, (-34.1±3.8)%, (-33.7±3.3)%] showed no significant degradation compared with the parameters at baseline as well as, after 2, 4 and 6 chemotherapy cycles (F=1.095, 2.297, 1.388, 0.628, 0.344, 0.585, respectively, all P>0.05), while the variations on LVtw[(19.9±6.8)°, (13.1±10.0)°, (13.5±8.1)°, (11.1±5.8)°], LVtor[(2.9±1.2)°/cm, (1.8±1.4)°/cm, (1.8±1.1)°/cm, (1.5±0.8)°/cm] decreased statistically compared with the data at baseline, and after 2, 4 and 6 chemotherapy cycles (F=6.007, 7.013, respectively, P<0.05, respectively). Changes on LVtw, LVtor showed statistically reduction after 2, 4 and 6 chemotherapy cycles compared with the parameter at baseline (LVtw: P=0.025, 0.016, 0.001, respectively; LVtor: P=0.008, 0.007, 0.000, respectively).