Quality Control of 4-Methoxybenzyl acetate. I found the field of Radiology, Nuclear Medicine & Medical Imaging very interesting. Saw the article Risk factors for nonvisualization of the sentinel lymph node on lymphoscintigraphy in breast cancer patients published in 2021, Reprint Addresses Chahid, Y (corresponding author), Univ Amsterdam, Amsterdam Univ Med Ctr, Dept Radiol & Nucl Med, Amsterdam, Netherlands.; Chahid, Y (corresponding author), Univ Amsterdam, Amsterdam Univ Med Ctr, Dept Clin Pharm, Amsterdam, Netherlands.. The CAS is 104-21-2. Through research, I have a further understanding and discovery of 4-Methoxybenzyl acetate.
Background Accurate sentinel lymph node (SLN) staging is essential for both prognosis and treatment in patients with breast cancer. However, the preoperative lymphoscintigraphy may fail to visualize the SLN in some patients. The purpose of this retrospective study was to identify risk factors associated with SLN nonvisualization on lymphoscintigraphy. For this single-center retrospective study, all data of lymphoscintigraphy of SLN procedures from March 2011 to April 2021 were collected and reviewed from the Amsterdam UMC database. Results A total of 1886 SLN procedures were included in this study. The SLN nonvisualization rate was 25.1% on lymphoscintigraphy at 4 h post-injection. The SLN nonvisualization rate decreased to 9.4% after reinjection. Multivariable analysis showed that age >= 70 years (P < 0.001; OR: 2.27; 95% CI: 1.46-3.53), BMI >= 30 kg/m(2) (P = 0.031; OR: 1.48; 95% CI: 1.04-2.12) and nonpalpable tumors (P = 0.004; OR: 1.54; 95% CI: 1.15-2.07) were independent predictors of SLN nonvisualization. Tumor location, brand of radiopharmaceutical, injected dose and volume, experience of preparer and administrator were not associated with SLN nonvisualization. None of the patient, tumor or tracer characteristics were associated with SLN nonvisualization after radiotracer reinjection. Conclusions This study shows that risk factors for SLN nonvisualization in breast cancer patients during preoperative lymphoscintigraphy are age >= 70 years, BMI >= 30 kg/m(2) and nonpalpable tumors. Our results support the notion that SLN lymphoscintigraphy is a very robust technique that does not depend on the experience of the preparer or administrator of the radiotracer.
Quality Control of 4-Methoxybenzyl acetate. Welcome to talk about 104-21-2, If you have any questions, you can contact Chahid, Y; Qiu, XB; van de Garde, EMW; Verberne, HJ; Booij, J or send Email.
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