Given Imaging Limited CAPDH-2 Manual De Usuario
Reviewing and Interpreting RAPID Videos
Lewis Score
157
•
Length of segment for
Longitudinal extent
•
Correct
Distribution
4.
Under
Ulcers
, select the:
•
Appropriate
Number
•
Length of segment for
Longitudinal extent
•
Correct range for
Circumferential extent
5.
Select the next tertile and repeat.
6.
Under
Stenosis
, select:
•
The appropriate
Number
•
Yes
or
No
for
Ulcerations
•
Yes
or
No
for
Traversed
The Lewis Score at the top of the screen updates automatically.
Lewis Score Glossary:
Term
Meaning
Appearance (of villi)
Edema where width of villi is equal or greater than height
of villi. Evaluated villi in mucosa distinct and separated
from an ulcer rather than contiguous to a mucosal break.
of villi. Evaluated villi in mucosa distinct and separated
from an ulcer rather than contiguous to a mucosal break.
Circumferential Extent
Portion of the entire image involved by the lesion, based
on the entire lesion including its collar. This value is
entered for the largest ulcer in the tertile.
on the entire lesion including its collar. This value is
entered for the largest ulcer in the tertile.
Few (ulcers)
2–7 lesions.
Lewis Score
A capsule endoscopy scoring index for small intestinal
mucosal disease activity (Aliment Pharmacol Ther 27,
146-154).
mucosal disease activity (Aliment Pharmacol Ther 27,
146-154).
Long segment
Equal to 11–50% of a tertile.
Multiple (ulcers)
8 or more lesions.
Short segment
Less than or equal to 10% of a tertile.
Tertile
One third of small bowel as calculated by the transit time
of the PillCam capsule in the small bowel.
•
of the PillCam capsule in the small bowel.
•
1st SB Tertile is the proximal third of the small bowel.
•
2nd SB Tertile is the middle third of the small bowel.
•
3rd SB Tertile is the distal third of the small bowel.
Whole segment
Greater than 50% of a tertile.
Ulceration
Mucosal break with white or yellow base surrounded by a
red or pink collar.
red or pink collar.