Identification of C7; Evaluations of 2 Sonographic Methods Using a Transverse and a Sagittal Scan.
Identification of the C7 Vertebral Level; Evaluations of Two Sonographic Methods Using a Transverse Scan of the C7 Transverse Process and a Sagittal Scan of the First Rib.
1 other identifier
interventional
20
0 countries
N/A
Brief Summary
To determine the accuracy of two techniques (transverse scan and sagittal scan) using ultrasonography to identify C7 spinous process compare to the fluoroscope (standard technique)
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Dec 2016
Shorter than P25 for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 1, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2017
CompletedFirst Submitted
Initial submission to the registry
January 5, 2017
CompletedFirst Posted
Study publicly available on registry
January 6, 2017
CompletedJanuary 18, 2017
January 1, 2017
Same day
January 5, 2017
January 15, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
the accuracy of identify C7 spinous process
the accuracy of two techniques (transverse scan and sagittal scan) using ultrasonography to identify C7 spinous process compare to the fluoroscope (standard technique)
1 day
Study Arms (3)
Ultrasound transverse scan
EXPERIMENTALTransvers scan by identifying the C7 transvers process using vertebral artery and absence of anterior tubercle as a landmark and then scan back following articular process, lamina and then find out the spinous process of C7
Ultrasound sagittal scan
EXPERIMENTALSagittal scan by identifying the first and second ribs and scan medially to depict the C7 transvers process.
Floroscopic technique
ACTIVE COMPARATORFluoroscopy image will do on lateral view including all cervical spines and upper thoracic spines. C7 spinous process will be identified by counting down from C1 vertebral body and spinous process.
Interventions
Convex transducer will be placed at patient's neck using paramedian sagittal scan and pointing toward the chest apex aiming to identify the first rib. Then move the transducer medially to identify the transverse process along with identify C7 transverse process will appear on the image as a hyperechoic shadow without continue to the rib laterally. Place the C7 spinous process on the midpoint of the probe and the spinous process correspondence to the midline will be marked as C7.
Linear transducer will be placed at patient's lateral neck using transverse scan. The unique characteristic of sonography of transvers process of C6 and C7 will be used to identify the transverse process of C6 and C7. C6 transverse process has a very prominence anterior tubercle (known as Chassaignac tubercle). While anterior tubercle of C7 is absent. After identifying the C7 transverse process, simultaneously the color Doppler mode will be activated to identify the vertebral artery for double confirmation.
C7 spinous process will be identified by counting down from C1 vertebral body and spinous process.
Eligibility Criteria
You may qualify if:
- healthy volunteer, age \>/= 18
You may not qualify if:
- previous cervical spine surgery, cervical spine deformity, pregnancy
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 5, 2017
First Posted
January 6, 2017
Study Start
December 1, 2016
Primary Completion
December 1, 2016
Study Completion
January 1, 2017
Last Updated
January 18, 2017
Record last verified: 2017-01
Data Sharing
- IPD Sharing
- Will not share