1. Distribution of cerebral flow using retrograde versus antegrade cerebral perfusion 
Michael G Katz, MD, PhD, Vadim Khazin, MD, Adam Steinmetz, MD, Michael Sverdlov, MD, Andrew Rabin, MD, David Chamovitz, MD, Arie Schachner, MD, Amram J Cohen, MD 
The Annals of Thoracic Surgery 
Volume 67, Issue 4, Pages (April 1999)
DOI: /S (99)

2. Fig 1
Scintigrams of animal models. Artist’s impression of rabbit’s outline was added for easier identification of body parts. (A) Dominant brain trapping (grade 5) from group III. (B) Good brain trapping (grade 4) from group I. (C) Very poor brain trapping (grade 1) from group II. (D) No brain trapping (grade 0) from group IV.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )

3. Fig 2
Lateral (A) and posteroanterior (B) projections from a retrograde superior vena cavagram showing reflux of contrast and retrograde filling of the jugular and cerebral veins.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )