The Importance of Subtype in PET Scanning for Mesothelioma Prognosis
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The Importance of Subtype in PET Scanning for Mesothelioma Prognosis

ByAlex Strauss

A new study of PET scanning for mesothelioma prognosis shows how much radioactive tracer a tumor absorbs can predict survival. This is especially true in people with the epithelioid mesothelioma subtype.  The study comes from the Sungkyunkwan University School of Medicine in Seoul, South Korea. Researchers studied the medical records of dozens of mesothelioma patients diagnosed between 2009 and 2018. They found that SUVmax, a key factor in PET scanning for mesothelioma, is directly related to mesothelioma survival.  How PET Scanning Works Mesothelioma diagnosis is challenging. Pleural mesothelioma grows quickly on the membrane around the lungs. It is one of the rarest and deadliest cancers. Positron emission tomography (PET) combined with computed tomography (CT) can help with diagnosis.  During a…

PET/CT for Mesothelioma Diagnosis: Age and Stage May Impact Accuracy
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PET/CT for Mesothelioma Diagnosis: Age and Stage May Impact Accuracy

ByAlex Strauss

A new study of PET/CT for mesothelioma diagnosis shows that certain conditions can impact its accuracy. Test results may be less reliable in older patients and in those with very early stage mesothelioma.  The study comes from cancer researchers in Italy. They compared the accuracy of PET/CT for mesothelioma diagnosis in 141 patients over a 9-year period.  A third of the oldest patients with Stage 1 pleural mesothelioma received false negative results. The figure jumped to 40 percent when age was not considered.  What is PET/CT for Mesothelioma Diagnosis? Positron emission tomography (PET) and computed tomography (CT) are non-invasive methods of looking at internal tissues.  A CT scan takes X-rays from different angles. A computer compiles the images into a…

PET/CT and Mesothelioma Staging: Better Imaging Techniques are Needed
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PET/CT and Mesothelioma Staging: Better Imaging Techniques are Needed

ByAlex Strauss

Scientists with the Institute of Diagnostic and interventional Radiology at the University Hospital of Zurich have just released a new study detailing the benefits and limitations of PET/CT. Positron Emission Tomography (PET) is a nuclear medicine imaging technique that produces three-dimensional pictures of functional processes in the body. When combined with computed tomography (CT), which uses x-rays and a computer to produce cross-sectional images, PET can give clinicians a more complete picture of cancer growth and stage. To determine the value of PET/CT in the staging of mesothelioma, the Swiss team analyzed the cases of 62 pleural mesothelioma patients who were undergoing chemotherapy prior to a planned surgery. Since the goal of this induction chemotherapy is to shrink tumors to…

For Mesothelioma Staging PET/CT Tops PET/MRI

For Mesothelioma Staging PET/CT Tops PET/MRI

ByAlex Strauss

Standard PET/CT beats PET/MRI for diagnosing and staging pleural tumors such as mesothelioma. That is the conclusion reached by a team of radiology researchers in Zurich who evaluated  the two imaging modalities side-by-side for a variety of different cancers, including mesothelioma. Positron emission tomography is a nuclear imaging technique that produces 3D images of functional or metabolic processes in the body. Patients are given a radioactive tracer (usually FDG, a molecule similar to glucose) and the PET machine detects concentrations of the tracer in body tissues. Because FDG is an analog of glucose, it will concentrate where metabolic activity is highest, often in cancer cells. The combination of PET with computed tomography, an X-ray imaging study that produces tomographic images or…