The summary of the actual study is here: https://openaccess.leidenuniv.nl/bitstream/handle/1887/17801/09.pdf?sequence=6
The "chapter" on the heart fat/function: https://openaccess.leidenuniv.nl/bitstream/handle/1887/17801/06.pdf?sequence=9
Select parts of the whole shebang here: https://openaccess.leidenuniv.nl/handle/1887/17801
Very-Low-Calorie Diet Improves Diabetic Heart Function
Other links: http://www.theheart.org/article/1320297.do
MRI Shows Improved Heart Function after Low-Calorie Diet