- ICH GCP
- Register voor klinische proeven in de VS.
- Klinische proef NCT02093806
Clinical Applications of Round Window Imaging Anatomy in Cochlear Implant Surgery
Clinical Applications of Round Window High Resolution Computerised Tomography Anatomy in Cochlear Implant Surgery
Studie Overzicht
Toestand
Interventie / Behandeling
Gedetailleerde beschrijving
The assessment of the anatomy of the round window will be executed using the stractured measuring software used for imaging of the Bnai Zion medical center (CARESTREAM PACS Ver. 11.0, CARSTREAM HEALTH INC.) in IAC window (centered at 700 with a total width of 4000) in the available zoom by the software (usually 400-800%).
Measuring the length (mm) and angle will be executed by the software's structured rulers.
Measuring protocol:
- Measured scans: one taken in an orbito-meatal plane
- Chosen slices: where both the round window niche and the external ear canal are seen on the same slice
Distances measured:
- Distance 1: between the anterior edge of the round window niche and the cortex of the mastoid, with a minimal distance of 0.5mm to the posterior wall of the external ear canal
- Distance 2: between the posterior edge of the round window niche and the cortex of the mastoid, with a minimal distance of 0.3mm to the anterior edge of the mastoid segment of the facial nerve.
- Distance 3: the size of the round window niche (from its anterior to posterior edges)
- Distance 4: between the anterior (most medial) edge of the round window membrane to a point at least 0.3mm anterior to the mastoid segment of the facial nerve.
- Distance 5: between the posterior (most lateral) edge of the round window membrane to a point at least 0.3mm anterior to the mastoid segment of the facial nerve
- Distance 6: size of round window membrane (anterior/medial to posterior/lateral)
- Distance 7: between the lateral edges of distance 1 and 2 marking the cortical size of the "working channel" created between the lines (from the cortex to the round window).
Angles measured:
- Between distance 1 and 7 - marking the angle of the "working channel" relatively to the cortex
- Between distance 1, passing in the middle of distance 3 to the middle of distance 6 - marking the angle of possible insertion from the working channel into the cochlea
Studietype
Inschrijving (Werkelijk)
Contacten en locaties
Studie Locaties
-
-
-
Haifa, Israël
- Bnai Zion Medical Center
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- age 20 years old or older
- high resolution computerized tomography of the temporal bone (slices ≤1mm) before the surgery
- on the measured slices both the round window niche and the posterior wall of the external ear canal are seen
Exclusion Criteria:
- inner, middle or external ear malformation
- temporal bone malformation
- status post cochlear implant
- status post temporal bone trauma
- slices were the round window niche and the posterior wall of the external ear canal are not seen on the same slice
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Observatiemodellen: Case-Alleen
- Tijdsperspectieven: Retrospectief
Cohorten en interventies
Groep / Cohort |
Interventie / Behandeling |
|---|---|
|
CT of the temporal bone
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
|---|---|
|
the size of round window niche and its relation to the cochlea
Tijdsspanne: january-june 2014 (six months)
|
january-june 2014 (six months)
|
Secundaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
|---|---|
|
sizes of working channel from the mastoid cortex into the round window membrane and its relation to the mastoid sagment of the facial nerve
Tijdsspanne: january-june 2014 (six months)
|
january-june 2014 (six months)
|
Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Michal Luntz, Prof., chair of otorhinolaryngology department at the Bnai Zion medical center
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Verwacht)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- 0140-13-BNZ (Ander subsidie-/financieringsnummer: TRADIS GAT LTD. ISRAEL)
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .