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| ID | Type | Description | Link |
|---|---|---|---|
| R21CA110390 | U.S. NIH Grant/Contract | View source |
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Administrative closed due to funding
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| Name | Class |
|---|---|
| National Cancer Institute (NCI) | NIH |
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Asses the clinical performance of dual-energy CTC for the detection of larger polyps 1 cm or larger without cathartic preparation.
Determine the feasibility to differentiate polyps from stool with or without the use of contrast agents and to assess the feasibility and accuracy of dual energy techniques in a pilot patient study.
1.1 Formulate algorithms that use dual-energy information to quantitatively measure specific material density of colon polyps in physics based simulation.
1.2 Determine optimal scanning parameters on prototype CT equipment.
2.1 Measure the material composition density and Hounsfield number of polyps with and without simulated contrast enhancement.
2.2 Measure the accuracy of dual-energy techniques to differentiate between polyps and stool and if needed using a combination of simulated intravenous enhanced polyps and contrast material tagged stool.
3.0 Asses the clinical performance of dual-energy CTC for the detection of larger polyps 1 cm or larger without cathartic preparation.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Oral Omnipaque MCA | Ten participant minimum: for stool tagging two days preceding the CT colonography, if applicable, with oral Omnipaque. This cohort at Scottsdale Mayo Clinic only. | ||
| IV Iodine MCR | Ten participant minimum: for intravenous iodine contrast dye. This cohort at Rochester Mayo Clinic only. | ||
| NO oral and no IV MCR | Five participant minimum for no oral or IV contrast. | ||
| Replacement Group | Five participant minimum for either cohorts 1, 2, or 3 as above should there be poor imaging results. A like prepped participant will replace that who had poor quality imaging to meet 25 imaging data sets. |
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| Measure | Description | Time Frame |
|---|---|---|
| Clinical performance of dual-energy CT colonography (CTC). | Detection of polyps in cathartic-free CTC using optimized dual-energy techniques. | Three Months |
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Inclusion Criteria:
Exclusion Criteria:
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Mayo Clinic, Rochester, Minnesota and Mayo Clinic, Scottsdale, Arizona Colonoscopy schedules.
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| Name | Affiliation | Role |
|---|---|---|
| Jeff L. Fidler, M.D. | Mayo Clinic | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Mayo Clinic | Scottsdale | Arizona | 85259 | United States | ||
| Mayo Clinic |
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| ID | Term |
|---|---|
| D003111 | Colonic Polyps |
| ID | Term |
|---|---|
| D007417 | Intestinal Polyps |
| D011127 | Polyps |
| D020763 | Pathological Conditions, Anatomical |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| Rochester |
| Minnesota |
| 55905 |
| United States |