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Updated: Oct 11, 2025
Magnetic Resonance Imaging Assessment of Carcinogen-induced Murine Bladder Tumors
Published on: March 29, 2019
[Imaging of oligometastatic disease in selected urologic cancers]
S A Koerber1, C A Fink1, K Dendl2,3
1Klinik für Radioonkologie und Strahlentherapie, Universitätsklinikum Heidelberg, Heidelberg, Deutschland.
Background:
Local treatment of the primary or metastatic sites in urologic malignancies is promising when compared to systemic therapy alone, leading to the definition of a potentially curative oligometastatic state.
Objectives:
Comparison of imaging modalities regarding local and metastatic tumor sites in urologic cancers.
Methods:
Review of comparative trials addressing quality criteria of imaging modalities.
Results:
Depending on primary tumor and metastatic site, conventional imaging modalities such as computer tomography (CT) and bone scintigraphy still represent the standard of care in Germany. Due to superior quality criteria, hybrid-imaging techniques were widely adopted for oncological staging and particular due to the new PSMA-ligand (PSMA-PET/CT) in prostate cancer imaging. The development of new radioisotopes as well as their clinical application remains a focus of current research.
Conclusions:
High-quality diagnostic imaging modalities lay the groundwork for a precise definition of an oligometastatic state. By enabling treatment of the entire tumor burden, a delay of systemic therapy, longer progression-free survival, or even curative treatment may become achievable.
Insights
Advanced imaging techniques improve the detection of limited metastatic disease in urologic cancers, potentially enabling curative treatment. High-quality imaging is crucial for defining the oligometastatic state and guiding therapy.
Area of Science:
- Urologic Oncology
- Medical Imaging
- Radiochemistry
Background:
- Local treatment of primary or metastatic urologic tumors shows promise, especially in potentially curative oligometastatic states.
- Defining an oligometastatic state is key for optimizing treatment strategies beyond systemic therapy alone.
Purpose of the Study:
- To compare the effectiveness of various imaging modalities for detecting local and metastatic sites in urologic cancers.
- To evaluate imaging quality criteria for staging and treatment planning in urologic malignancies.
Main Methods:
- Systematic review of comparative trials focused on imaging modality quality criteria.
- Analysis of diagnostic performance across different imaging techniques for urologic tumors.
Main Results:
- Conventional imaging like computed tomography (CT) and bone scintigraphy remain standards in Germany for specific tumor types and metastatic sites.
- Hybrid imaging techniques, particularly prostate-specific membrane antigen-ligand (PSMA)-PET/CT, offer superior quality for oncological staging, especially in prostate cancer.
- Ongoing research focuses on novel radioisotopes and their clinical integration for advanced imaging.
Conclusions:
- High-quality diagnostic imaging is fundamental for accurately identifying an oligometastatic state in urologic cancers.
- Precise imaging enables comprehensive treatment of tumor burden, potentially delaying systemic therapy, improving progression-free survival, and offering curative options.
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