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Abstract #4265

Center-Acquisition-at-Partial-Ramp Imaging (CAPRI) compared to Ultra-Short Echo-Time (UTE) Imaging for Diagnosis of Dental Demineralization

Anna-Katinka Bracher 1 , Erich Hell 2 , Johannes Ulrici 2 , and Volker Rasche 1

1 Internal Medicine II, University Hospital of Ulm, Ulm, BW, Germany, 2 Sirona Dental Systems, Bensheim, HE, Germany

Ultra short echo time (UTE) imaging has proven its potential for radiation free detection of caries lesions and also for classification of lesion progression using ultra short T2* mapping. The UTE imaging sequence is very sensitive to gradient delay related k-space center shifts and off-resonance effects. C APRI allows automatic correction of gradient delays, reduces off-resonance and T2 induced blurring artefacts and provides T2* mapping for lesion classification.

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