Influence of Contrast Injection Force on the Accuracy of Vessel Measurements in Cerebral Angiography

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Total Enrollment

1 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-07-12

Study Completion Date

2018-07-12

Brief Summary

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The purpose of this research study is to collect data/measurements that are routinely collected in standard of care cerebral angiogram

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Detailed Description

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Research for this study is to determine how the injection of contrast material influences vessel measurements, as these measurements guide device selection when interventions are warranted.

The data will be used to determine if there is a significant change in vessel diameter with intra-arterial injection of contrast material in cerebral angiography, how changes in force of contrast injection augments the significance of the changes in vessel geometry, and the extent of propagation downstream from the catheter tip that such changes in vessel diameter are detected and found to be significant, as these changes could potentially lead to less optimal device selection by providing an overestimation of true vessel diameter.

Conditions

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Cerebral Angiogram

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Standard of Care Cerebral Angiogram Group

Participants undergoing a standard of care cerebral angiogram.

Standard of Care Cerebral Angiogram Group

Intervention Type PROCEDURE

Subjects will undergo the standard of care cerebral angiogram and any intervention(s) (when applicable) that were discussed with their provider, following the standard procedural protocol for the procedure at WFBMC. There are no additional interventions or changes to the planned intervention(s) that will take place by agreeing to participate in the study.

The data collected from this procedure, following the standard of care protocol, will include the following: force of injection of contrast material for each angiographic run (peak pressure associated with injection, duration of peak, and area under pressure curve), volume of contrast utilized, images from the procedure, measurements of vessel diameter at defined distances from the catheter tip utilizing the images, catheter type, any additional device(s) (when applicable) utilized during the procedure, and if spasmolytic agents are utilized (including dose and time of administration).

Interventions

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Standard of Care Cerebral Angiogram Group

Subjects will undergo the standard of care cerebral angiogram and any intervention(s) (when applicable) that were discussed with their provider, following the standard procedural protocol for the procedure at WFBMC. There are no additional interventions or changes to the planned intervention(s) that will take place by agreeing to participate in the study.

The data collected from this procedure, following the standard of care protocol, will include the following: force of injection of contrast material for each angiographic run (peak pressure associated with injection, duration of peak, and area under pressure curve), volume of contrast utilized, images from the procedure, measurements of vessel diameter at defined distances from the catheter tip utilizing the images, catheter type, any additional device(s) (when applicable) utilized during the procedure, and if spasmolytic agents are utilized (including dose and time of administration).

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Patients receiving care at WFBMC that will be undergoing a standard of care cerebral angiogram who are anticipated to have a minimum of 2 images for an individual view required for the necessary data collection