A Study Evaluates the Role of MRI in Assessing the Potential

question 108

Multiple Choice

A study evaluates the role of MRI in assessing the potential for myocardial recovery after reperfusion.  A total of 185 patients undergoing coronary bypass surgery were evaluated by MRI for delayed gadolinium enhancement, indicative of myocardial scar tissue and therefore no viability.  Subsequently, the patients were followed for improvement in myocardial contractility after surgery.  The following results were obtained.

Which of the following best describes the specificity of MRI in assessing for scar tissue?

• A)82/85
• B)92/100
• C)92/95
• D)82/90
• E)100/185

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Definitions:

Emergent Norms

Refers to the theory that norms develop spontaneously within social groups to guide behavior in atypical situations.

Nonroutine Collective Action

Spontaneous or unplanned group actions that emerge in response to unexpected events, differing from established patterns of behavior in society.

Social Relationships

Connections between individuals in a society that involve various forms of interaction, communication, and dependency.

Deprivation

The damaging lack of material benefits considered to be basic necessities in a society.