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EJNMMI Research
Fig. 7 | EJNMMI Research

Fig. 7

From: Ra-223 SPECT for semi-quantitative analysis in comparison with Tc-99m HMDP SPECT: phantom study and initial clinical experience

Fig. 7

Comparison of Ra-223 SPECT with the MEGP (a) or HEGP collimators (b) and Tc-99m HMDP SPECT (c) in a patient with prostate cancer with bone metastases (patient no. 3). The corresponding SPECT/CT fused images are shown in d, e, and f. It should be noted that Ra-223 SPECT depicted more lesions with the HEGP than with the MEGP collimator (arrows), even though the SPECT scan with HEGP was performed prior to the scan with MEGP. HMDP hydroxymethylene diphosphonate, MEGP medium-energy general purpose, HEGP high-energy general purpose, HMDP hydroxymethylene diphosphonate

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