Developing patient-centered outcome measures for evaluating vasospasm in aneurysmal subarachnoid hemorrhage.
OBJECTIVE
Patient-centered outcome measures have become an essential focus in research methodology in recent years. This may be particularly challenging in imaging research at the technology assessment level to incorporate patient-centeredness. A primary issue in this field is designing a reference standard that is applicable to the entire study population.


METHODS
This important element is necessary for translation of findings into clinical practice. In our work, computed tomographic perfusion imaging is being evaluated as a new technology used in aneurysmal subarachnoid hemorrhage patients to detect cerebral vasospasm. We have developed a new reference standard employing a multistage hierarchical design incorporating both clinical and imaging criteria to determine a diagnosis of vasospasm.


RESULTS
A flowchart of the reference standard levels is provided for illustration. The limitations and potential biases that may occur using this reference standard are discussed.


CONCLUSIONS
This reference standard will be applicable to the entire study population, including those with and without symptoms or further imaging with digital subtraction angiography.
Reichman
Melissa B
MB
Department of Radiology, Weill Cornell Medical College, New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA. melissareichman@gmail.com
Greenberg
Eddie D
ED
Gold
Rachel L
RL
Sanelli
Pina C
PC
D000792:Angiography / Q000592:standards*; D006801:Humans; D017063:Outcome Assessment, Health Care / Q000592:standards*; D017060:Patient Satisfaction; D018802:Patient-Centered Care / Q000592:standards*; D017410:Practice Guidelines as Topic; D010818:Practice Patterns, Physicians' / Q000592:standards*; D013345:Subarachnoid Hemorrhage / Q000150:complications* / Q000175:diagnosis*; D014481:United States; D020301:Vasospasm, Intracranial / Q000150:complications* / Q000175:diagnosis*