The aim of this article is to evaluate the feasibility and results of our peripheral revascularization where we used non-conventional intra-procedural imaging techniques. Between January 2014 and September 2014, 45 patients were imaged with CO 2 angiography and/or optical coherence tomography (OCT) or 2D perfusion imaging. The scope was to minimize the use of contrast and obtain additional information to improve the outcome. CO 2 angiography was used in all patients with impaired renal function. Twodimensional perfusion was used in all patients with critical limb ischaemia before and after revascularization to quantify angiosome blood supply improvement at wound level. Optical coherence tomography was performed in superficial femoral arteries and popliteal arteries to disclose vessel microstructure and characterize plaque structure. In all patients, the invasive imaging was feasible and safe. In those patients studied with CO 2 , the creatinine serum level after procedure increased by 0.11 + 0.05. None of the patients received dialysis. The procedural success rate was 100% and was no different from the historical sample of the cath lab. Procedural time was not significantly affected by this supplemental technique. The 2D perfusion showed an incremental blood supply at wound level and OCT provided encouraging details regarding dissections and their clinical relevance. Our early experience with supplementary imaging techniques showed safety and feasibility. The peripheral angioplasty success rate was not different from the historical sample and the reduction of the contrast media dose resulted in an encouraging outcome in terms of renal protection. Two-dimensional perfusion added objective information regarding blood supply improvement and guided re-perfusion strategy.

level. The development of the performance measures over time may be attributed to changes in organization and management of the system. Methods: As routine data the ATHIS 2006/2007 (a standardized health interview survey), the cause of death registry 2006 and 2007, the hospital discharge datasets from the Austrian DRG system 2006/2007 (KDok/DLD) and diagnoses for the outpatient sector derived from pharmaceutical claims data 2006/2007 (ATC→ICD) -are used to describe the burden of disease regarding Ischemic Heart Disease (ICD9 410-414) with different regional granularity. Methods and results are compared with epidemiological data extracted from a literature search on this topic. To explore the similarity of the results of these different methods of measurement a systematic review of regional correlation is being elaborated. Correlations pointing to a high analogy of the findings in spite of the differences in dimensions measured on the one hand and contra intuitive correlations on the other hand were further explored. Results: The review of regional correlation indicates promising close links between the burden of disease derived from ATC→ICD, ATHIS and cause of death registry data. Hospital discharge data, however, show some contra-intuitive relations towards the other data sets. ConClusions: The use of routine data yields promising opportunities for monitoring the Austrian health care system in a timely and comprehensible way. It enables different aggregation levels regarding regions and periods and leads the way to further research addressing underlying causes for the observed regional variation. The methodology can be transferred to other areas of diseases.