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Diagnostic Value of Proton MR Spectroscopy in Peripheral Arterial Occlusive Disease: A Prospective Evaluation

Christoph A. Stueckle1, Luc Claeys1, Kerstin Haegele2, Stephan Zimmermann1, Stefan Mruck1, Stefan Adams1 and Dieter Liermann1

1 Department of Radiology, Universitaetsklinik Marienhospital, Hoelkeskampring 40, Herne, NRW 44625, Germany.
2 Institute of Neurology, University Hospital Bergmannsheil, Bochum, Germany.


Figure 1
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  		Fig. 1 —Hydrogen-1 MR spectrum of gastrocnemius muscle of 22-year-old healthy male volunteer. Metabolites are as follows: Lac = lactate, Cr = creatine, Glc = glucose, Glu = glutamate, EMCL = extramyocellular lipids, IMCL = intramyocellular lipids.

 

Figure 2
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  		Fig. 2 —Hydrogen-1 MR spectrum of gastrocnemius muscle of diseased leg acquired from 22-year-old man with peripheral arterial occlusive disease. Metabolites are as follows: Lac = lactate, Cr = creatine, Glc = glucose, Glu = glutamate, EMCL = extramyocellular lipids, IMCL = intramyocellular lipids.

 

Figure 3
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  		Fig. 3 —Bar graph shows average values for glutamate-creatine, phosphorous-creatine, glucose-creatine, lactate-creatine, and glucose-lactate ratios for control group (gray bars) and patients with peripheral arterial occlusive disease (white bars).

 

Figure 4
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  		Fig. 4 —Bar graph shows average values for intramyocellular lipids (IMCL)-creatine and extramyocellular lipids (EMCL)-creatine ratios for control group (gray bars) and patients with peripheral arterial occlusive disease (white bars).

 

Figure 5
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  		Fig. 5 —Box plot of glucose-lactate ratio shows higher values and higher median (thick black line) for control group compared with those with peripheral arterial occlusive disease (patient group).

 

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