Osteomyelitis can be diagnosed with the following imaging techniques [1]:
* first of all: **radiography** to view the anatomy of the bone
* the sonography can be used to diagnose fluid collections, periosteal involvement. It is also the most useful procedure for kidney assessment [2].
* CT is also useful to detect early osseous erosion, but is less sensitive when it comes to bone infection
* **MRI** is the most sensitive and specific for osteomyelitis
* Nuclear imaging can be used to identify multifocal osseous involvement.
References:
1. Carlos Pineda _et al._ , _Radiographic Imaging in Osteomyelitis: The Role of Plain Radiography, Computed Tomography, Ultrasonography, Magnetic Resonance Imaging, and Scintigraphy_
2. American College of Radiology, _Renal failure_