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Characteristic of multichannel intraluminal impedance-pH catheter
| Catheter type | Catheter length | Spacing of impedance rings | Spacing of pH sensor |
|---|---|---|---|
| Infant | Height <75 cm | 1.5 cm apart | In centre of most distal impedance channel |
| Paediatric | Height >75 cm <150 cm |
2 cm apart | In centre of most distal impedance channel |
| Adult | Height >150 cm | 2 cm apart | In centre of second most distal impedance channel |
