Anemia and risk of periprocedural cerebral injury detected by diffusion-weighted magnetic resonance imaging in patients undergoing transcatheter aortic valve replacement

Stella Ng, Qi-feng Zhu, Ju-bo Jiang, Chun-hui Liu, Jia-qi Fan, Ye-ming Xu, Xian-bao Liu, Jian-an Wang

Table 3 Post-procedural DW-MRI findings

Variables All patients (n=158) Anemic patients (n=85) Non-anemic patients (n=73) P-value Time of post-procedural MRI, days 5 (4-7) 5 (4-7) 5 (4-6) 0.195 Patients with new lesions 126 (79.7) 69 (81.2) 57 (78.1) 0.629 Lesion location (patients) 0.107 Left hemisphere lesions 20 (15.9) 11 (15.9) 9 (15.8) Right hemisphere lesions 22 (17.5) 7 (10.1) 15 (26.3) Bihemispheric lesions 84 (66.7) 51 (73.9) 33 (57.9) Total number of lesions 718 379 339 Number of lesions per patient 4.54±5.26 4.46±4.73 4.64±5.84 0.826 ACA lesions (n=97) 0.61±1.13 0.58±1.02 0.66±1.25 0.654 Total volume ACA lesions, mm3 45.13±102.68 38.59±77.02 52.74±126.33 0.389 Total volume/lesions in ACA, mm3 24.75±51.58 24.71±52.41 24.79±50.97 0.991 ACA/MCA lesions* (n=98) 0.62±1.25 0.73±1.25 0.49±1.26 0.239 Total volume ACA/MCA lesions, mm3 50.06±112.45 63.06±126.90 34.93±91.40 0.109 Total volume/lesions in ACA/MCA, mm3 25.05±48.59 31.89±55.78 17.08±37.39 0.049 MCA lesions (n=218) 1.38±2.12 1.51±2.07 1.23±2.18 0.422 Total volume MCA lesions, mm3 124.43±246.70 147.41±262.18 97.67±226.20 0.207 Total volume/lesions in MCA, mm3 44.93±63.78 54.54±74.72 33.75±46.03 0.034 MCA/PCA lesions* (n=20) 0.13±0.49 0.12±0.52 0.14±0.45 0.805 Total volume MCA/PCA lesions, mm3 8.54±34.06 8.35±35.52 8.77±32.53 0.940 Total volume/lesions in MCA/PCA, mm3 6.00±23.97 5.91±26.75 6.10±20.45 0.962 PCA lesions (n=143) 0.90±1.72 0.69±1.53 1.14±1.90 0.112 Total volume PCA lesions, mm3 175.00±1,232.21 70.71±262.21 296.44±1,789.64 0.252 Total volume/lesions in PCA, mm3 43.42±160.58 28.43±53.78 60.87±228.65 0.207 VA/BA lesions* (n=143) 0.91±1.45 0.84±1.49 0.99±1.42 0.517 Total volume VA/BA lesions, mm3 180.70±638.99 164.00±600.66 200.14±684.61 0.724 Total volume/lesions in VA/BA, mm3 104.48±468.14 110.46±558.37 97.51±337.72 0.863