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Fig. 2 | EJNMMI Physics

Fig. 2

From: Quantitative imaging of bone remodeling in patients with a unicompartmental joint unloading knee implant (ATLAS Knee System)—effect of metal artifacts on a SPECT-CT-based quantification

Fig. 2

a, c Pre-op SPECT-CT images from a patient (f, 36 year, SPECT-CT: 8 months pre-implantation) with a secondary gonarthrosis and b, d corresponding post-op imaging (10 months post-implantation) exemplifying the effect from the examined knee implant system (b, d: metal artifact labeled by arrow). Patient showing a constantly increased uptake at the medial condyle of the right femur after implantation of the load absorber (ACmax, pre = 118.6 kBq/ml [SUVmax = 35.6] and ACmax, post = 110.89 kBq/ml, [SUVmax = 32.9]). Accumulation patterns from bone turnover (pre/post) were windowed identically

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