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Title: Correlation of scintigraphic phase maps with intraoperative epicardial/endocardial maps in patients with activation disturbances

Abstract

To assess the true accuracy of scintigraphic findings, 8 patients (PTS), 6 with pre-excitation (PEX) syndrome and 2 with intractable ventricular tachycardia (VT), were studied by phase analysis, prior to corrective surgery. Sites of earliest phase angle were determined in multiple projections during the conduction disturbance, compared to sites of early ventricular activation determined by epicardial mapping during PEX and, when performed, by endocardial mapping during VT, and to maps previously generated at conventional electrophysiologic study (EPS). Among PEX PTS, Rt and Lt lateral, Lt anterolateral, Rt and Lt posterolateral and posteroseptal bypass pathways mapped at surgery correlated with phase localization. While localization from EPS also correlated well with surgical maps in 4 PTS, 1 PT could not be mapped by EPS and another presented ambiguities. Scintigraphic localization also correlated well with surgical mapping in a PT with a RV VT focus while EPS was suggestive but uncertain. A second PT with VT mapped scintigraphically to originate in a Lt lateral focus, demonstrated a similar localization on EPS, and during surgical mapping, an incision made through the scintigraphic focus terminated VT. Incision in regions of earliest activity in the first VT PT and in PTS with PEX resolved the arrhythmiamore » or interrupted the bypass tract. Phase mapping correlated closely with surface mapping at surgery while providing an accurate, independent method for noninvasive assessment of conduction disturbances and a complementary tool to standard EPS.« less

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Univ. of California, San Francisco, CA
OSTI Identifier:
6844826
Alternate Identifier(s):
OSTI ID: 6844826
Report Number(s):
CONF-840619-
Journal ID: CODEN: JNMEA; TRN: 87-008780
Resource Type:
Conference
Resource Relation:
Journal Name: J. Nucl. Med.; (United States); Journal Volume: 25:5; Conference: 31. annual meeting of the Society of Nuclear Medicine, Los Angeles, CA, USA, 5 Jun 1984
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; HEART; SCINTISCANNING; SURGERY; DISTURBANCES; INCIDENCE ANGLE; MAPPING; MAPS; PATIENTS; BODY; CARDIOVASCULAR SYSTEM; COUNTING TECHNIQUES; DIAGNOSTIC TECHNIQUES; MEDICINE; ORGANS; RADIOISOTOPE SCANNING 550601* -- Medicine-- Unsealed Radionuclides in Diagnostics

Citation Formats

Dae, M.W., Botvinick, E.H., Scheinmann, M.H., Morady, F.J., Davis, J.A., Schechtmann, N., Frais, M., Faulkner, D., and O'Connell, W. Correlation of scintigraphic phase maps with intraoperative epicardial/endocardial maps in patients with activation disturbances. United States: N. p., 1984. Web.
Dae, M.W., Botvinick, E.H., Scheinmann, M.H., Morady, F.J., Davis, J.A., Schechtmann, N., Frais, M., Faulkner, D., & O'Connell, W. Correlation of scintigraphic phase maps with intraoperative epicardial/endocardial maps in patients with activation disturbances. United States.
Dae, M.W., Botvinick, E.H., Scheinmann, M.H., Morady, F.J., Davis, J.A., Schechtmann, N., Frais, M., Faulkner, D., and O'Connell, W. Sun . "Correlation of scintigraphic phase maps with intraoperative epicardial/endocardial maps in patients with activation disturbances". United States. doi:.
@article{osti_6844826,
title = {Correlation of scintigraphic phase maps with intraoperative epicardial/endocardial maps in patients with activation disturbances},
author = {Dae, M.W. and Botvinick, E.H. and Scheinmann, M.H. and Morady, F.J. and Davis, J.A. and Schechtmann, N. and Frais, M. and Faulkner, D. and O'Connell, W.},
abstractNote = {To assess the true accuracy of scintigraphic findings, 8 patients (PTS), 6 with pre-excitation (PEX) syndrome and 2 with intractable ventricular tachycardia (VT), were studied by phase analysis, prior to corrective surgery. Sites of earliest phase angle were determined in multiple projections during the conduction disturbance, compared to sites of early ventricular activation determined by epicardial mapping during PEX and, when performed, by endocardial mapping during VT, and to maps previously generated at conventional electrophysiologic study (EPS). Among PEX PTS, Rt and Lt lateral, Lt anterolateral, Rt and Lt posterolateral and posteroseptal bypass pathways mapped at surgery correlated with phase localization. While localization from EPS also correlated well with surgical maps in 4 PTS, 1 PT could not be mapped by EPS and another presented ambiguities. Scintigraphic localization also correlated well with surgical mapping in a PT with a RV VT focus while EPS was suggestive but uncertain. A second PT with VT mapped scintigraphically to originate in a Lt lateral focus, demonstrated a similar localization on EPS, and during surgical mapping, an incision made through the scintigraphic focus terminated VT. Incision in regions of earliest activity in the first VT PT and in PTS with PEX resolved the arrhythmia or interrupted the bypass tract. Phase mapping correlated closely with surface mapping at surgery while providing an accurate, independent method for noninvasive assessment of conduction disturbances and a complementary tool to standard EPS.},
doi = {},
journal = {J. Nucl. Med.; (United States)},
number = ,
volume = 25:5,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1984},
month = {Sun Jan 01 00:00:00 EST 1984}
}

Conference:
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