4 Comparing anorectal function tests 107 Table 11. 3D high resolution anorectal manometry (3D-HRAM) versus transperineal ultrasound (TPUS) TPUS Relaxation Indifferent Paradoxical Total 3D-HRAM Relaxation 3 13 0 16 Indifferent 2 3 0 5 Paradoxical 0 9 2 11 Total 5 25 2 32 3D-HRAM versus evacuation of gel during TPUS (n=24) Two patients were classified as ‘paradoxical’ but were able to evacuate the gel during TPUS (Table 12). Also, three patients could not evacuate while they showed normal ‘relaxation’ on the 3D-HRAM. Table 12. 3D dimensional high resolution anorectal manometry (3D-HRAM) versus evacuation of gel during transperineal ultrasound (TPUS) Evacuation of gel during TPUS Yes No Total 3D-HRAM Relaxation 8 3 11 Indifferent 2 3 5 Paradoxical 2 6 8 Total 12 12 24 3D-HRAM versus s-EMG (n=50) Twenty-six (52%) patients showed similar results in both tests (Table 13). S-EMG was more often classified as ‘indifferent’, and one patient was classified ‘paradoxical’ while normal ‘relaxation’ was measured using 3D-HRAM. Table 13. 3D dimensional high resolution anorectal manometry (3D-HRAM) versus surface electromyography (s-EMG) s-EMG Relaxation Indifferent Paradoxical Total 3D-HRAM Relaxation 9 13 1 23 Indifferent 3 5 3 11 Paradoxical 0 4 12 16 Total 12 22 16 50
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