ALAIN DESY, MD

Plain English
This study examined how breathing movements affect the accuracy of radiation dose calculations during a treatment called radioembolization, which targets liver tumors. Researchers found that these movements can reduce the dose delivered to tumors by between 16% and 25% while increasing the dose to surrounding healthy tissue by 13% to 32%. Most importantly, this led to a significant drop of 28% to 43% in the ratio of tumor dose to normal tissue dose, which is crucial for deciding who should receive the treatment and how much radiation they should get. Who this helps: Patients undergoing liver cancer treatment.

Plain English
This study looked at how the French government monitors access to assisted reproductive technology (ART), which helps couples and individuals have children. Researchers found that many people feel excluded from these services because they don't fit certain norms imposed by the system. To avoid these restrictions, many French women and couples turn to fertility services in other countries. Who this helps: This helps patients seeking fertility assistance who face barriers in France.

Plain English
This study looked at French women over 40 who go to Spain to get help with having children because they face limitations in France. It found that these women often feel excluded from their home country’s reproductive services and encounter challenges in their journey, such as legal restrictions and emotional struggles. This matters because it highlights how different laws and medical practices affect women's ability to have children, particularly as they age. Who this helps: Women over 40 seeking reproductive treatments.

Plain English
This study looked at how different methods for correcting "dead time" in imaging affect the accuracy of SPECT scans used in personalized radiopharmaceutical therapy with lutetium (Lu). Researchers found that two methods of correction resulted in very similar accuracy, with differences in measurements generally less than 0.8%, and the greatest difference was only 3.5% for kidney dose estimates. This is important because it shows that a simpler correction method can be nearly as good as the more complex one, making it easier for clinics to use SPECT imaging while still providing accurate treatment dosimetry. Who this helps: This helps doctors and patients receiving targeted radiopharmaceutical therapies.

Plain English
This study examined a simpler way to measure radiation doses from treatments using radiopharmaceuticals, focusing on a method called single-time-point (STP) dosimetry that relies on just one imaging scan. The researchers found that while STP methods can accurately estimate doses for some treatments like Lu-DOTATATE (with errors less than 30%), they may not work well for others, such as those affecting bone marrow. The right timing for scans is also crucial; for example, the best time to scan after treatment with Lu-DOTATATE is about 72 hours, while Lu-PSMA is more accurate at 48 hours. Who this helps: This research helps doctors and cancer patients by improving how radiation doses are measured in treatments.

Plain English
This study looked at how well three different SPECT/CT imaging systems can accurately measure radiation levels during personalized cancer treatment. The researchers found that the Siemens system performed better, with a calibration factor of 100.0 cps/MBq and the ability to measure radiation levels up to 3.3 GBq, while the GE systems had a calibration factor between 75.4 and 87.5 cps/MBq and could only measure levels up to 2.7 GBq. These findings are important because they highlight how different imaging systems can impact treatment dosages, affecting patient care. Who this helps: This helps patients undergoing personalized radiopharmaceutical therapy.

Plain English
This study looked at how "dead time" during scans can affect the accuracy of kidney dose measurements in patients receiving targeted cancer treatment called peptide receptor radionuclide therapy (PRRT) for neuroendocrine tumors. Researchers analyzed data from 564 treatment cycles in 166 patients and found that when they didn't correct for dead time, kidney dose estimates were often lower than they should be, with 5.7% of cases showing over a 5% underestimation and the largest underestimation reaching 22.1%. Correcting for dead time is important to ensure patients receive the right amount of radiation needed for effective treatment. Who this helps: This helps patients undergoing PRRT and their doctors by ensuring more accurate treatment dosages.

Plain English
This study looked at 45 cases of intraventricular tumors in patients with tuberous sclerosis, including 11 from their own records. The researchers found that these tumors were usually linked to a specific area in the brain, often leading to an increase in pressure (hydrocephalus) and are typically a type known as giant cell subependymal astrocytoma. The authors suggest that the best treatment for these tumors is to remove them through surgery. Who this helps: This helps patients with tuberous sclerosis and their doctors by providing insights into effective treatment options for brain tumors associated with the condition.