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pwe-039u2005buried treasure: developing an accurate, low cost assessment of flexible sigmoidoscopy completion using a hand-held metal detector

by:Kenwei      2019-09-10
Flexible B- colonoscopy (FS)
It is an effective screening test to reduce the incidence of colorectal cancer.
Intestinal mirror screening will be implemented in the UK in 2016.
There are differences in FS performance between operators;
For the position of colonoscopy, the internal colonoscopy marks are unreliable.
3 D magnetic imaging system™(Olympus)(SG)
Indicates the location of the instrument in real time, but not widely available. Hand-
Metal detectors (HHMD)
It is easy to locate metal objects within the body.
We evaluated the use of hhd at the spleen Qu to confirm the placement of the flexible endoscopic tip (SF).
Methods eligible adult patients were examined for FS/colonoscopy in the outpatient clinic.
When the SF judgment check is complete, an independent observer places the hmd in 10 interribs on the left, front-axillary line (
Intestinal fixation corresponding to SF Junction).
If a beep is made by h5 md, a positive result is recorded.
The position is then assessed by SG.
Patients are excluded if SF cannot be reached.
We evaluated 3 hh md from different manufacturers.
The patient experience was also studied.
NREC no. Ethics review. 13/LO/1065.
Results 44 subjects were recruited continuously: The average age was 64 years old (range 17–74), 50% male (
For the position of colonoscopy, the internal colonoscopy marks are unreliable.
3 D magnetic imaging system™(Olympus)(SG)
Indicates the location of the instrument in real time, but not widely available. Hand-
Metal detectors (HHMD)
It is easy to locate metal objects within the body.
We evaluated the use of hhd at the spleen Qu to confirm the placement of the flexible endoscopic tip (SF).
Methods eligible adult patients were examined for FS/colonoscopy in the outpatient clinic.
When the SF judgment check is complete, an independent observer places the hmd in 10 interribs on the left, front-axillary line (
Intestinal fixation corresponding to SF Junction).
If a beep is made by h5 md, a positive result is recorded.
The position is then assessed by SG.
Patients are excluded if SF cannot be reached.
We evaluated 3 hh md from different manufacturers.
The patient experience was also studied.
NREC no. Ethics review. 13/LO/1065.
Results 44 subjects were recruited continuously: The average age was 64 years old (range 17–74), 50% male (n = 22)
Mean BMI 27 kg/m2 (range 20–41).
The endoscopic confirmation display of SF location is consistent with the endoscopic guidelines™95% (42/44).
Subjects 1-6 were examined using the BDS200 (
Black and Decker)HHMD.
Although promising results have been achieved on the training model, this has proved insensitive to humans and has been abandoned.
Subjects 7-30 (n = 24)
Learn with GMS120 (Bosch)
, A positive reading of the correct anatomical marker was recorded in 88% of the examinations verified by SG.
Of the 3 failures, 2 had a BMI of over 30 kg/m2. Use of an X-
The ray screening trolley improves the specificity.
Subjects 31-44 (n = 14)
, Detector with higher sensitivity and direction capability, GPP (
Garrett metal detectors USA
, For Standard endoscopic trolley.
This indicates that it is consistent with SG in 100% of cases (n = 14)
Among them, there were 4 patients with BMI> 30 kg/m2.
3D imaging confirmed that there was a real h5 md negative control endoscopic assessment.
When the signal is lost by range extraction, the technology has been further verified.
The acceptability of patient questionnaires was high.
Conclusion The use of h5 md in FS has good consistency with scopeide™Colonoscopy in San Francisco
The specificity and sensitivity were improved by adjusting the specification of h5 md.
An hmd is an accurate, very cheap (£100 per unit)
Methods to ensure quality during FS and further research may confirm its role as a useful training tool, especially during future service expansion.
Reference 1 Atkin W et al.
BMJ 20102 Leicester, etc.
The interests disclosed by Lancet 1981 were not announced.
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