1. Injection of cold saline for diagnosis of intramural ventricular arrhythmias 
Miki Yokokawa, MD, Fred Morady, MD, FACC, Frank Bogun, MD, FACC 
Heart Rhythm 
Volume 13, Issue 1, Pages (January 2016)
DOI: /j.hrthm
Copyright © 2016 Heart Rhythm Society Terms and Conditions

2. Figure 1
Right anterior oblique (RAO) and left anterior oblique (LAO) views of the mapping catheter located in the distal great cardiac vein.
Heart Rhythm  , 78-82DOI: ( /j.hrthm )
Copyright © 2016 Heart Rhythm Society Terms and Conditions

3. Figure 2
Suppression of premature ventricular complexes in a patient with bigeminal rhythm when cold saline was infused into the distal great cardiac vein.
Heart Rhythm  , 78-82DOI: ( /j.hrthm )
Copyright © 2016 Heart Rhythm Society Terms and Conditions

4. Figure 3
A: Right anterior oblique (RAO) and left anterior oblique (LAO) views of an injection of contrast into the great cardiac vein. The first perforator vein is indicated with white arrows. A mapping catheter is within the perforator vein. B: Selective injection of contrast within the first perforator vein through the irrigated-tip ablation catheter. C: Twelve-lead QRS morphology of the intramural premature ventricular complex that was mapped in A and B.
Heart Rhythm  , 78-82DOI: ( /j.hrthm )
Copyright © 2016 Heart Rhythm Society Terms and Conditions