Cardiac blood pool scan
Updates to Article Attributes
Body
was changed:
A multi-gated (MUGA) cardiac blood scan scan (sometimes just called a MUGA scan) is a common study performed in patients who are receiving potentially cardiotoxic chemotherapy.
Indications
- acute myocardial infarction (AMI)
- coronary artery disease (CAD)
- evaluation after coronary artery bypass graft surgery
- cardiomyopathy
/ myocarditis/myocarditis - assessment of drug therapy
- pulmonary disease
-
RVright ventricular (RV) enlargement - cor pulmonale
- normal
LV ejectionleft ventricular (LV) ejection fraction, wall motion and chamber size strongly suggests a pulmonaryaeitiologyaetiology
-
Tracer dose and route of administration
- Tc
labelled-labelled RBC
Technique
- patient in normal sinus rhythm
- IV administration of Tc
Labelled-labeled RBC - ECG gated – with R wave gating
- minimum of 16 frames/cardiac cycle
- at rest and exercise
First pass study
This is obtained by injecting a compact bolus of suitable radiopharmaceutical intravenously.
- major advantage: data collected rapidly over very few cardiac cycles allows measurement of ventricular function at peak stress during exercise ventriculography
- major disadvantage: counting statistics are low and only a limited number of views are possible
Analysis
- qualitative analysis
- quantitative analysis
- functional parameters
- wall motion assessment (regional and global)
-
EDend-diastolic (ED) andESend-systolic (ES) ventricularvolumevolumes - stroke volume
- cardiac output
- ejection fraction
( LV(LV and RV) - regurgitant fraction (stroke index ratio)
- ventricular filling and emptying rates
- cardiac shunt quantitation
- left to right shunts
– evaluated: evaluated using the first transit technique(NOT(not equilibrium) - right to left shunts
–: evaluated usingTc99mTc-99m labelledmacro-aggregatedmacroaggregated albumin and comparing ratio of tracer in the lung to tracer gaining access to the systemic circulation
- left to right shunts
-<p>A multi-gated (MUGA) <strong>cardiac blood scan scan</strong> is a common study performed in patients who are receiving potentially cardiotoxic chemotherapy. </p><h4>Indications</h4><ul>-<li>acute myocardial infarction (AMI)</li>- +<p>A multi-gated (MUGA) <strong>cardiac blood scan scan</strong> (sometimes just called a <strong>MUGA scan</strong>) is a common study performed in patients who are receiving potentially cardiotoxic chemotherapy. </p><h4>Indications</h4><ul>
- +<li><a title="Acute myocardial infarction" href="/articles/myocardial-infarction">acute myocardial infarction (AMI)</a></li>
-<li>cardiomyopathy / myocarditis</li>- +<li>cardiomyopathy/myocarditis</li>
-<li>RV enlargement</li>- +<li>right ventricular (RV) enlargement</li>
-<li>normal LV ejection fraction, wall motion and chamber size strongly suggests a pulmonary aeitiology</li>- +<li>normal left ventricular (LV) ejection fraction, wall motion and chamber size strongly suggests a pulmonary aetiology</li>
-</ul><h4>Tracer dose and route of administration</h4><ul><li>Tc labelled RBC</li></ul><h4>Technique</h4><ul>- +</ul><h4>Tracer dose and route of administration</h4><ul><li>Tc-labelled RBC</li></ul><h4>Technique</h4><ul>
-<li>IV administration of Tc Labelled RBC</li>- +<li>IV administration of Tc-labeled RBC</li>
-<li>ED and ES ventricular volume</li>- +<li>end-diastolic (ED) and end-systolic (ES) ventricular volumes</li>
-<li>ejection fraction ( LV and RV)</li>- +<li>ejection fraction (LV and RV)</li>
-<li>left to right shunts – evaluated using the first transit technique (NOT equilibrium)</li>-<li>right to left shunts – evaluated using Tc99m labelled macro-aggregated albumin and comparing ratio of tracer in the lung to tracer gaining access to the systemic circulation</li>- +<li>left to right shunts: evaluated using the first transit technique (not equilibrium)</li>
- +<li>right to left shunts: evaluated using Tc-99m labelled macroaggregated albumin and comparing ratio of tracer in the lung to tracer gaining access to the systemic circulation</li>