Complementary roles of m-mode echocardiography and scintigraphy in the evaluation of adults wih suspected left-to-right shunts. [/sup 99m/Tc-DTPA]

Journal Article · Sat Nov 01 04:00:00 EST 1980 · Circulation; (United States)

DOI:https://doi.org/10.1161/01.CIR.62.5.1070· OSTI ID:6795083

Botvinick, E H; Schiller, N B

We sought to determine the relative clinical abilities and roles of echocardiography and scintigraphy in left-to-right shunt diagnosis. M-mode echocardiographic and scintigraphic studies were analyzed in 37 adults presenting diagnostic difficulties with suspected left-to-right shunts. An enlarged right ventricle on M-mode echocardiography was a sensitive (100%) but not specific (55%) indicator of atrial septal defect (ASD). M-mode lacked sensitivity for ventricular eptal defect (VSD) and patent ductus arteriosus (PDA). In a few studies, two-dimensional echocardiography provided additional specific and clinically important anatomic information. Scintigraphic analysis demonstrated complete diagnostic accuracy and excellent localizing and quantitative abilities in all patients studied. Because it is extremely sensitie to ASD, free of any exposure to radioactivity, entirely noninvasive and may by simply and visually analyzed, echocardiography is the study of choice in the preliminary evaluation of patients presenting, diagnostic difficulty with suspected ASD. Scintigraphy is the study of choice in the preliminary evaluation of patients presenting diagnostic difficulty with suspected VSD and PDA and is the logical response to the finding of echocardiographic right ventricular enlargement when the diagnosis remains in doubt.

• OSTI ID: 6795083
• Journal Information: Circulation; (United States), Journal Name: Circulation; (United States) Vol. 62:5; ISSN CIRCA
• Country of Publication: United States
• Language: English

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62 RADIOLOGY AND NUCLEAR MEDICINE
AMINO ACIDS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
CARBOXYLIC ACIDS
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
CHELATING AGENTS
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DISEASES
DRUGS
DTPA
HEART
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LABELLED COMPOUNDS
MALFORMATIONS
MATERIALS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANS
PATHOLOGICAL CHANGES
PATIENTS
RADIOACTIVE MATERIALS
RADIOISOTOPE SCANNING
RADIOISOTOPES
RADIOPHARMACEUTICALS
RADIOPROTECTIVE SUBSTANCES
RESPONSE MODIFYING FACTORS
SCINTISCANNING
TECHNETIUM 99
TECHNETIUM ISOTOPES
ULTRASONOGRAPHY
YEARS LIVING RADIOISOTOPES