[Magnetic Sentinel Lymph Node Detection in Prostate Cancer after intraprostatic Injection of Superparamagnetic Iron Oxide Nanoparticles]. 2017

Alexander Winter, and Svenja Engels, and Tobias Kowald, and Tina Susanne Paulo, and Holger Gerullis, and Ajay Chavan, and Friedhelm Wawroschek
Universitätsklinik für Urologie, Klinikum Oldenburg, Fakultät für Medizin und Gesundheitswissenschaften, Carl von Ossietzky Universität Oldenburg.

In prostate cancer, reliable information about the lymph node status is of great importance for accurate staging and the optimal planning of treatment. Despite recent advances in imaging, the histological detection of metastases, or pelvic lymphadenectomy (PLND), continues to be the most reliable method for lymph node staging in clinically localised prostate cancer, especially as this procedure enables the detection of small or micrometastases. Radioisotope-guided sentinel PLND (sPLND) demonstrates high sensitivity in the detection of lymph node metastases as well as low morbidity in prostate cancer because of the targeted removal of a relatively small number of lymph nodes. However, radioactive labelling is associated with limitations such as strict legal regulations, the need for a nuclear medicine department and the radioactive exposure of patients and medical staff. In order to take advantage of the targeted sentinel method while avoiding the disadvantages of radioactive labelling, the identification of sentinel lymph nodes (SLNs) by means of superparamagnetic iron oxide nanoparticles (SPIONs) was studied in breast carcinoma, and its non-inferiority compared with the established procedure with 99mtechnetium nanocolloid was demonstrated. Just like the radioactive identification of SLNs, this innovative new method for magnetic labelling and the intraoperative identification of SLNs using a hand-held magnetometer were successfully transferred to prostate cancer. Initial studies demonstrated high sensitivity in the detection of lymph node-positive patients. This method offers the additional advantage of being safe and easy to perform for a single urologist. In addition, the visualisation of SPION-marked SLNs through magnetic resonance tomography enables a precise preoperative SLN identification comparable to lymphoscintigraphy in the radioactive approach. Therefore, SLNs can be identified before and during surgical procedures in prostate cancer patients without exposure to irradiation.

UI MeSH Term Description Entries
D007267 Injections Introduction of substances into the body using a needle and syringe. Injectables,Injectable,Injection
D008197 Lymph Node Excision Surgical excision of one or more lymph nodes. Its most common use is in cancer surgery. (From Dorland, 28th ed, p966) Lymph Node Dissection,Lymphadenectomy,Dissection, Lymph Node,Dissections, Lymph Node,Excision, Lymph Node,Excisions, Lymph Node,Lymph Node Dissections,Lymph Node Excisions,Lymphadenectomies,Node Dissection, Lymph,Node Dissections, Lymph
D008279 Magnetic Resonance Imaging Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques. Chemical Shift Imaging,MR Tomography,MRI Scans,MRI, Functional,Magnetic Resonance Image,Magnetic Resonance Imaging, Functional,Magnetization Transfer Contrast Imaging,NMR Imaging,NMR Tomography,Tomography, NMR,Tomography, Proton Spin,fMRI,Functional Magnetic Resonance Imaging,Imaging, Chemical Shift,Proton Spin Tomography,Spin Echo Imaging,Steady-State Free Precession MRI,Tomography, MR,Zeugmatography,Chemical Shift Imagings,Echo Imaging, Spin,Echo Imagings, Spin,Functional MRI,Functional MRIs,Image, Magnetic Resonance,Imaging, Magnetic Resonance,Imaging, NMR,Imaging, Spin Echo,Imagings, Chemical Shift,Imagings, Spin Echo,MRI Scan,MRIs, Functional,Magnetic Resonance Images,Resonance Image, Magnetic,Scan, MRI,Scans, MRI,Shift Imaging, Chemical,Shift Imagings, Chemical,Spin Echo Imagings,Steady State Free Precession MRI
D008297 Male Males
D009367 Neoplasm Staging Methods which attempt to express in replicable terms the extent of the neoplasm in the patient. Cancer Staging,Staging, Neoplasm,Tumor Staging,TNM Classification,TNM Staging,TNM Staging System,Classification, TNM,Classifications, TNM,Staging System, TNM,Staging Systems, TNM,Staging, Cancer,Staging, TNM,Staging, Tumor,System, TNM Staging,Systems, TNM Staging,TNM Classifications,TNM Staging Systems
D011467 Prostate A gland in males that surrounds the neck of the URINARY BLADDER and the URETHRA. It secretes a substance that liquefies coagulated semen. It is situated in the pelvic cavity behind the lower part of the PUBIC SYMPHYSIS, above the deep layer of the triangular ligament, and rests upon the RECTUM. Prostates
D011471 Prostatic Neoplasms Tumors or cancer of the PROSTATE. Cancer of Prostate,Prostate Cancer,Cancer of the Prostate,Neoplasms, Prostate,Neoplasms, Prostatic,Prostate Neoplasms,Prostatic Cancer,Cancer, Prostate,Cancer, Prostatic,Cancers, Prostate,Cancers, Prostatic,Neoplasm, Prostate,Neoplasm, Prostatic,Prostate Cancers,Prostate Neoplasm,Prostatic Cancers,Prostatic Neoplasm
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000071036 Sentinel Lymph Node First lymph node to receive drainage from the primary tumor. SENTINEL LYMPH NODE BIOPSY is performed to determine early METASTASIS status because cancer cells may appear first in the sentinel node. Sentinal Node,Lymph Node, Sentinel,Lymph Nodes, Sentinel,Node, Sentinal,Nodes, Sentinal,Sentinal Nodes,Sentinel Lymph Nodes
D012680 Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) Specificity,Sensitivity,Specificity and Sensitivity

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