Tissue to background ratio
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The tissue to background (T/B) ratio is a measure of the specificity of radiopharmaceutical uptake within the target organ in a nuclear medicine study. It is also referred to as tumour to background ratio in the literature.
The presence of radiopharmaceutical in the background (tissues external to the target organ) can be secondary to the following:
- low retention rate in target organ, leading to leakage into surrounding tissues
- preferential uptake by other organs (particularly highly vascular structures such as the liver, spleen, gut and kidneys)
-<p>The <strong>tissue to background (T/B) ratio </strong>is a measure of the specificity of <a title="Radiopharmaceuticals" href="/articles/radiopharmaceuticals">radiopharmaceutical</a> uptake within the target organ in a nuclear medicine study. It is also referred to as <strong>tumour to background ratio</strong> in the literature.</p><p>The presence of radiopharmaceutical in the background (tissues external to the target organ) can be secondary to the following:</p><ul>- +<p>The <strong>tissue to background ratio </strong>is a measure of the specificity of <a href="/articles/radiopharmaceuticals">radiopharmaceutical</a> uptake within the target organ in a nuclear medicine study. It is also referred to as <strong>tumour to background ratio</strong> in the literature.</p><p>The presence of radiopharmaceutical in the background (tissues external to the target organ) can be secondary to the following:</p><ul>
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