Cardiac Blood Pool Imaging
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Full history/Diagnosis is available below
Situs solitus: Normal heart, with the left atrium, left, systemic ventricle, aorta, and stomach are on the same side.
Situs inversus: "Mirror image" of situs solitus with the left atrium and stomach are on the right.
Situs Ambiguous: the position of the left atrium and stomach is uncertain.
Cardia: refers to the side of the left ventricular apex
Levocardia: normal, with the LV apex on the left
Dextrocardia: the LV apex is intrinsically on the right because of malposition.
"Mirror Image" is associated with very high incidence of congenital heart disease, especially Tetralogy of Fallot.
AKA Immotile Cilia Syndrome or Dysmotile Cilia Syndrome
Incidence: familial, with 1:40,000
Etiology: Deficiency of the dynein arms of the cilia resulting in abnormal mucociliary function of the respiratory and auditory epithelium as well as sperm.
TRIAD: Situs inversus, bronchiectasis, & sinusitis
References and General Discussion of Cardiac Blood Pool Scintigraphy (Anatomic field:Heart and Great Vessels, Category:Normal, Technique, Congenital Anomaly)
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