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284 Chapter 14 TABLE 1. Diagnostic tools and frequency of use: n (%). Total number of responders: 74. Routinely Occasionally Never Not available Missing Digital rectal examination 50 (68) 21 (28) 1 (1) - 2 (3) GI 12 (63) 7 (37) 0 - 0 surgery 38 (69) 14 (26) 1 (2) - 2 (4) Abdominal X-ray (plain) 40 (54) 29 (39) 5 (7) 0 0 GI 5 (26) 12 (63) 2 (11) 0 0 surgery 35 (64) 17 (31) 3 (6) 0 0 CTT (radiopaque markers) 10 (14) 36 (49) 19 (26) 5 (7) 4 (5) GI 1 (5) 16 (84) 2 (11) 0 0 surgery 9 (16) 20 (36) 17 (31) 5 (9) 4 (7) CTT (scintigraphy) 2 (3) 7 (10) 37 (50) 20 (27) 8 (11) GI 0 2 (11) 13 (68) 4 (21) 0 surgery 2 (4) 5 (9) 24 (44) 16 (29) 8 (15) Anorectal manometry 15 (20) 37 (50) 11 (15) 10 (14) 1 (1) GI 4 (21) 14 (74) 0 1 (5) 0 surgery 11 (20) 23 (42) 11 (20) 9 (16) 1 (2) Colonic manometry 8 (11) 20 (27) 22 (30) 18 (24) 6 (8) GI 3 (16) 8 (42) 4 (21) 4 (21) 0 surgery 5 (9) 12 (22) 18 (33) 14 (26) 6 (11) Contrast enema 26 (35) 38 (51) 7 (10) 1 (1) 2 (3) GI 2 (11) 15 (79) 2 (11) 0 0 surgery 24 (44) 23 (42) 5 (9) 1 (2) 2 (4) Defecography 5 (7) 28 (38) 24 (32) 12 (16) 5 (7) GI 0 5 (26) 10 (53) 4 (21) 0 surgery 5 (9) 23 (42) 14 (26) 8 (15) 5 (9) Transabdominal ultrasound 7 (10) 18 (24) 37 (50) 5 (7) 7 (10) GI 0 1 (5) 16 (84) 2 (11) 0 surgery 7 (13) 17 (31) 21 (38) 3 (6) 7 (13) Transrectal ultrasound 0 10 (14) 37 (50) 10 (14) 17 (23) GI 0 1 (5) 13 (68) 3 (16) 2 (11) surgery 0 9 (16) 24 (44) 7 (13) 15 (27) Abbreviations: CTT, colonic transit time; GI, gastroenterology. The boldface entries represent the total number of responders who preferred a certain treatment for the specific case.