Localisation of the origin of a ventricular tachycardia: Difference between revisions

Localisation of the origin of a ventricular tachycardia (view source)

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 Using this approach and the algorithms below <cite>segal</cite>  the exit site can be estimated with reasonable accuracy (PPV around 70%). In these algorhythms, bundle branch block was defined as “left” or “right” based on QRS morphology in lead V1; right bundle branch block (RBBB) pattern was defined by a mono-, bi-, or triphasic R wave or qR in V1; LBBB pattern was defined by a QS, rS, or qrS in V1.
-[[File:LBBB_VT_i.svg|thumb|left|300px|Localising the VT exit in LBBB VT with negative QRS complexes inferior]]
+[[File:LBBB_VT_i.svg|thumb|left|300px|Localising the VT exit in LBBB VT with negative QRS complexes inferior. Adapted from Segal et al.<cite>segal</cite>]]
-[[File:LBBB_VT_p.svg|thumb|none|300px|Localising the VT exit in LBBB VT with positive QRS complexes inferior]]
+[[File:LBBB_VT_p.svg|thumb|none|300px|Localising the VT exit in LBBB VT with positive QRS complexes inferior. Adapted from Segal et al.<cite>segal</cite>]]
-[[File:RBBB_VT.svg|thumb|300px|left|Localising the VT exit in RBBB VT with positive QRS complexes inferior]]
+[[File:RBBB_VT.svg|thumb|300px|left|Localising the VT exit in RBBB VT with positive QRS complexes inferior. Adapted from Segal et al.<cite>segal</cite>]]
-[[File:RBBB_VT2.svg|thumb|300px|none|Localising the VT exit in RBBB VT with negative QRS complexes inferior]]
+[[File:RBBB_VT2.svg|thumb|300px|none|Localising the VT exit in RBBB VT with negative QRS complexes inferior. Adapted from Segal et al.<cite>segal</cite>]]
 ==References==
 <biblio>