1. Endoscopic localization and assessment of coronary arteries by 13 MHz epicardial ultrasound 
Ricardo P.J Budde, MS, Rudy Meijer, Patricia F.A Bakker, MD, PhD, Cornelius Borst, MD, PhD, Paul F Gründeman, MD, PhD 
The Annals of Thoracic Surgery 
Volume 77, Issue 5, Pages (May 2004)
DOI: /j.athoracsur

2. Fig 1
The Aloka 13 MHz mini-transducer (top) and as it was used in this study, wrapped in sleeve with probe holder (bottom). The transducer can be passed through an 11-mm trocar.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

3. Fig 2
Surgeon's view on master console of the posterior side of the heart (apex pointing to right upper corner of image) during stabilized (single Octopus-1 arm, large arrowhead) scanning of a RDP. (Inset) Ultrasound image (inferior caval vein, small arrowheads). (ART. = artery; RDP = right posterior descending coronary artery.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

4. Fig 3
Schematic drawing of the porcine coronary anatomy. Arrows indicate the part of the target arteries scanned during the scout scan. Vessel diameter was measured in the mid portion of this section. (CX = circumflex coronary artery; OM3 = third obtuse marginal coronary branch; LAD = left anterior descending coronary artery; RCA = right coronary artery; RDP = right posterior descending coronary artery.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

5. Fig 4
Transverse Doppler image of a RDP with two adjacent veins. Blue depicts arterial flow and yellow/red depicts venous flow. (ART. = artery; RDP = right posterior descending coronary artery.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

6. Fig 5
B-mode image of circumflex artery (between arrows) with OM3 (arrowheads). (OM3 = third obtuse marginal coronary branch.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

7. Fig 6
Split screen longitudinal B-mode (left) and power Doppler flow (right) image of a RDP with septal perforating branch. Note the side branches coming off the septal perforator running parallel to the RDP (arrow). (RDP = right posterior descending coronary artery.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )