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PubMed2001

[Signal and data acquisition based on waveform graph].

It is well known that signal acquisition is the first step in signal processing. A simple and convenient method of acquiring biologic data is described here, which needs no special acquisition equipment, and is practical and makes the data acquisition more credible.

Analog-Digital Conversion↗
PubMed2003

[Pre- and post-interventional follow-up of stent graphs with single and multi-slice spiral computerized tomography].

PURPOSE: Could contrast enhanced computed tomography replace conventional catheter angiography in the preoperative evaluation of aortic aneurysms before stentgraft implantation? Does multi slice computed tomography have advantages comparing to single slice computed tomography? METHODS: We compared 15 single slice with 13 multi slice computed tomography studies and reconstructions according to there ability to replace conventional catheter angiography in the preoperative evaluation. In the postoperative follow-up 60 single slice computed tomography studies were compared to 60 multi slice studies. RESULTS: By using appropriate reconstructions the spiral computed tomography studies could deliver all information necessary for implantation. In our study no advantage of multi slice computed tomography could be detected. In the postoperative evaluation of stentgrafts our computed tomography scan protocol could detect all relevant complications in single and multi slice computed tomography. No significant advantage of multi slice computed tomography could be detected. CONCLUSION: Contrast enhanced computed tomography is equal to conventional catheter angiography in the pre- and postoperative evaluation of stengrafts. No significant advantage of multi slice versus single slice could be detected.

Aortic Aneurysm, Abdominal↗