In the proposed study, the investigators will aim to develop and pilot a Magnetic Resonance (MR) imaging protocol and assess its ability to achieve the following: quantification of tumour burden and bone loss, detecting longitudinal changes in tumour load with therapy and detecting longitudinal changes in microarchitecture with therapy. The investigators also aim to investigate whether bone loss is better, worse or the same with different imaging techniques. This will be investigated by correlating the DXA imaging data with Diffusion-Weighted Magnetic Resonance Imaging (DWMRI) to see if it is possible to achieve quantifiable data of bone density.
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Primary Outcome 1: Quantifying Tumour Burden [Correlations With Apparent Diffusion Coefficient (ADC) Measurements]
Timeframe: At baseline
Primary Outcome 1: Quantifying Tumour Burden [Correlations With Myeloma Response Assessment and Diagnosis System (MY-RADS) Pattern of Disease]
Timeframe: At baseline
Primary Outcome 1: Quantifying Tumour Burden (Correlations With Bone Turnover Markers)
Timeframe: At baseline
Primary Outcome 2: Quantifying Bone Loss - Inter-Group Differences in Baseline Serum P1NP (Procollagen Type 1 N-terminal Propeptide)
Timeframe: At baseline
Primary Outcome 2: Quantifying Bone Loss - Inter-Group Differences in Baseline Serum CTX-1 (Collagen Cross-Linked C-Telopeptide Type I)
Timeframe: At baseline
Primary Outcome 2: Quantifying Bone Loss - Inter-Group Differences in Baseline Serum ALP (Alkaline Phosphatase)
Timeframe: At baseline
Primary Outcome 2: Quantifying Bone Loss - Inter-Group Differences in Baseline Serum DKK1 (Dickkopf WNT Signaling Pathway Inhibitor 1)
Timeframe: At baseline
Primary Outcome 2: Quantifying Bone Loss - Inter-Group Differences in Baseline Serum Sclerostin
Timeframe: At baseline
Primary Outcome 2: Quantifying Bone Loss - Inter-Group Differences in Baseline Serum Ratio of RANKL (Receptor Activator of Nuclear Factor Kappa-Î’ Ligand) and OPG (Osteoprotegerin)
Timeframe: At baseline
Primary Outcome 2: Quantifying Bone Loss (Inter-Biomarker Correlations)
Timeframe: At baseline
Primary Outcome 2: Quantifying Bone Loss [Correlations Between Bone Turnover Markers, DXA (Dual-energy X-ray Absorptiometry) and ADC (Apparent Diffusion Coefficient)]
Timeframe: At baseline
Primary Outcome 1+2: Quantifying Tumour Burden (Total Spinal 'Hole' Volume)
Timeframe: At baseline
Primary Outcome 1+2: Quantifying Tumour Burden (Total Spinal 'Collapse' Volume)
Timeframe: At baseline
Primary Outcome 1+2: Quantifying Tumour Burden [Osteotronix Fine Structural Analysis (FSA), Trabecular Wall Thickness]
Timeframe: At baseline