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Hu J, Yang X, Xiong Z, Xie X, Hong Y, Liu W. Analysis of biopsy pathology and risk factors of lymph node metastasis in prostate cancer. Int Urol Nephrol 2024; 56:2261-2267. [PMID: 38393409 DOI: 10.1007/s11255-023-03931-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 12/26/2023] [Indexed: 02/25/2024]
Abstract
OBJECTIVE To explore the relationship between biopsy pathology and lymph node metastasis in patients with prostate cancer (PCa), and to identify risk factors of lymph node metastasis (LNM). PATIENTS AND METHODS Patients diagnosed with prostate cancer were respective screened between Jan 2015 and May 2022. Patients diagnosed PCa via 13-core ultrasound-guided biopsies and underwent radical prostatectomy and lymph node dissection were identified. The clinicopathological characteristics of the patients were recorded. Relationships between LNM and non-LNM were analyzed using chi-square and independent samples t-test. Logistic regression model was fitted to analyze the risk factors of lymph node metastases. RESULTS Two hundreds and fifteen patients were included, sixty-seven patients had lymph node metastasis. Gleason scores in LNM group were higher than that in non-LNM group (8.5 ± 0.9 VS 7.5 ± 1.5, p < 0.001), positive biopsy in non-LNM group was significantly lower than that in LNM group (p < 0.001), Binary logistic regression analysis indicated number of positive biopsy and number of removed lymph nodes increased the risks of LNM (odds ratio, OR = 1.28, 95% confidence interval, CI = 1.16-1.42, p < 0.001; OR = 1.11, 95% CI = 1.06-1.17, p < 0.001; respectively). Number of positive biopsy in internal gland but not external gland was significant associated with LNM (OR = 1.66, 95% CI = 1.34-2.06, p < 0.001; OR = 1.19, 95% CI = 0.88-1.61, p = 0.262; respectively). The patients with lymph nodes dissection more than 13 were about four times more likely to detect lymph node metastasis than those fewer than 13 (OR = 3.92, 95% CI = 2.10-7.33, p < 0.001). CONCLUSIONS The risk of lymph node metastasis increased with the number of positive prostate biopsy cores, and tumors in the internal gland were more likely to cause lymph node metastasis. In addition, lymph node metastasis was more likely to be found when the number of lymph nodes dissection was greater than 13.
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Affiliation(s)
- Jieping Hu
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
| | - Xiaorong Yang
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Zhufeng Xiong
- Department of Nursing, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Xun Xie
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Yanyan Hong
- Department of Nursing, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Weipeng Liu
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
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Karwacki J, Gurwin A, Jaworski A, Jarocki M, Stodolak M, Dłubak A, Szuba P, Lemiński A, Kaczmarek K, Hałoń A, Szydełko T, Małkiewicz B. Association of Lymphovascular Invasion with Lymph Node Metastases in Prostate Cancer-Lateralization Concept. Cancers (Basel) 2024; 16:925. [PMID: 38473287 DOI: 10.3390/cancers16050925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/11/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Lymphovascular invasion (LVI) is a vital but often overlooked prognostic factor in prostate cancer. As debates on lymphadenectomy's overtreatment emerge, understanding LVI laterality gains importance. This study pioneers the investigation into PCa, aiming to uncover patterns that could influence tailored surgical strategies in the future. METHODS Data from 96 patients with both LVI and lymph node invasion (LNI) were retrospectively analyzed. All participants underwent radical prostatectomy (RP) with modified-extended pelvic lymph node dissection (mePLND). All specimens underwent histopathological examination. The assessment of LVI was conducted separately for the right and left lobes of the prostate. Associations within subgroups were assessed using U-Mann-Whitney and Kruskal-Wallis tests, as well as Kendall's tau-b coefficient, yielding p-values and odds ratios (ORs). RESULTS Out of the 96 patients, 61 (63.5%) exhibited exclusive left-sided lymphovascular invasion (LVI), 24 (25.0%) had exclusive right-sided LVI, and 11 (11.5%) showed bilateral LVI. Regarding nodal involvement, 23 patients (24.0%) had LNI solely on the left, 25 (26.0%) exclusively on the right, and 48 (50.0%) on both sides. A significant correlation was observed between lateralized LVI and lateralized LNI (p < 0.001), particularly in patients with right-sided LVI only. LN-positive patients with left-sided LVI tended to have higher pT stages (p = 0.047) and increased odds ratios (OR) of bilateral LNI (OR = 2.795; 95% confidence interval [CI]: 1.231-6.348) compared to those with exclusive right-sided LVI (OR = 0.692; 95% CI: 0.525-0.913). CONCLUSIONS Unilateral LVI correlates with ipsilateral LNI in PCa patients with positive LNs, notably in cases of exclusively right-sided LVI. Left-sided LVI associates with higher pT stages and a higher percentage of bilateral LNI cases.
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Affiliation(s)
- Jakub Karwacki
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Adam Gurwin
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Arkadiusz Jaworski
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Michał Jarocki
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Marcel Stodolak
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Andrzej Dłubak
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Przemysław Szuba
- Faculty of Economics in Opole, The WSB University in Wroclaw, Fabryczna 29-31, 53-609 Wroclaw, Poland
| | - Artur Lemiński
- Department of Urology and Urological Oncology, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
- Department of Biochemical Sciences, Pomeranian Medical University, Władysława Broniewskiego 24, 71-460 Szczecin, Poland
| | - Krystian Kaczmarek
- Department of Urology and Urological Oncology, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Agnieszka Hałoń
- Department of Clinical and Experimental Pathology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Tomasz Szydełko
- University Center of Excellence in Urology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Bartosz Małkiewicz
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
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Licari LC, Bologna E, Proietti F, Flammia RS, Bove AM, D'annunzio S, Tuderti G, Leonardo C. Exploring the Applications of Indocyanine Green in Robot-Assisted Urological Surgery: A Comprehensive Review of Fluorescence-Guided Techniques. SENSORS (BASEL, SWITZERLAND) 2023; 23:5497. [PMID: 37420664 DOI: 10.3390/s23125497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 07/09/2023]
Abstract
This comprehensive review aims to explore the applications of indocyanine green (ICG) in robot-assisted urological surgery through a detailed examination of fluorescence-guided techniques. An extensive literature search was conducted in PubMed/MEDLINE, EMBASE and Scopus, using keywords such as "indocyanine green," "ICG", "NIRF", "Near Infrared Fluorescence", "robot-assisted", and "urology". Additional suitable articles were collected by manually cross-referencing the bibliography of previously selected papers. The integration of the Firefly® technology in the Da Vinci® robotic system has opened new avenues for the advancement and exploration of different urological procedures. ICG is a fluorophore widely used in near-infrared fluorescence-guided techniques. The synergistic combination of intraoperative support, safety profiles and widespread availability comprises an additional asset that empowers ICG-guided robotic surgery. This overview of the current state of the art illustrates the potential advantages and broad applications of combining ICG-fluorescence guidance with robotic-assisted urological surgery.
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Affiliation(s)
- Leslie Claire Licari
- Urology Unit, Department of Maternal-Child and Urological Sciences, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Viale del Policlinico 155, 00161 Rome, Italy
| | - Eugenio Bologna
- Urology Unit, Department of Maternal-Child and Urological Sciences, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Viale del Policlinico 155, 00161 Rome, Italy
| | - Flavia Proietti
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Rocco Simone Flammia
- Urology Unit, Department of Maternal-Child and Urological Sciences, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Viale del Policlinico 155, 00161 Rome, Italy
| | - Alfredo Maria Bove
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Simone D'annunzio
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Gabriele Tuderti
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Costantino Leonardo
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
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Xie D, Gu D, Lei M, Cai C, Zhong W, Qi D, Wu W, Zeng G, Liu Y. The application of indocyanine green in guiding prostate cancer treatment. Asian J Urol 2023; 10:1-8. [PMID: 36721695 PMCID: PMC9875158 DOI: 10.1016/j.ajur.2021.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 05/31/2021] [Accepted: 07/13/2021] [Indexed: 02/03/2023] Open
Abstract
Objective Indocyanine green (ICG) with near-infrared fluorescence absorption is approved by the United States Food and Drug Administration for clinical applications in angiography, blood flow evaluation, and liver function assessment. It has strong optical absorption in the near-infrared region, where light can penetrate deepest into biological tissue. We sought to review its value in guiding prostate cancer treatment. Methods All related literature at PubMed from January 2000 to December 2020 were reviewed. Results Multiple preclinical studies have demonstrated the usefulness of ICG in identifying prostate cancer by using different engineering techniques. Clinical studies have demonstrated the usefulness of ICG in guiding sentinel node dissection during radical prostatectomy, and possible better preservation of neurovascular bundle by identifying landmark prostatic arteries. New techniques such as adding fluorescein in additional to ICG were tested in a limited number of patients with encouraging result. In addition, the use of the ICG was shown to be safe. Even though there are encouraging results, it does not carry sufficient sensitivity and specificity in replacing extended pelvic lymph node dissection during radical prostatectomy. Conclusion Multiple preclinical and clinical studies have shown the usefulness of ICG in identifying and guiding treatment for prostate cancer. Larger randomized prospective studies are warranted to further test its usefulness and find new modified approaches.
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Fumadó L, Abascal JM, Mestre-Fusco A, Vidal-Sicart S, Aguilar G, Juanpere N, Cecchini L. Sentinel Lymph Node Biopsy in Prostate Cancer Patients: Results From an Injection Technique Targeting the Index Lesion in the Prostate Gland. Front Med (Lausanne) 2022; 9:931867. [PMID: 36117970 PMCID: PMC9478858 DOI: 10.3389/fmed.2022.931867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/23/2022] [Indexed: 11/22/2022] Open
Abstract
Objectives To determine the accuracy of nodal staging in patients with prostate cancer (PCa) when 99mTc-nanocolloid radiotracer is injected into an index lesion (IL). Methods This prospective study was conducted at our institution between June 2016 and October 2020. It included 64 patients with localized PCa with at least a 5% possibility for lymph node involvement in the Memorial Sloan Kettering Cancer Center nomogram, suitable for surgical treatment. All patients underwent magnetic resonance imaging (MRI) with IL and were pathologically confirmed. The day before surgery, transrectal ultrasound-guided injection (TRUS) of 99mTc-nanocolloid into the IL was performed. Surgical procedures included radical prostatectomy (RP), sentinel lymph node biopsy (SLNB), and extended pelvic lymphadenectomy (ePLND). Analysis was performed, including histopathological findings of RP, ePLND, and SLNB. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), false negative (FN), false positive (FP), diagnostic yield, and non-diagnostic rate were calculated. Results A total of 1,316 lymph nodes were excised, including 1,102 from the ePLND (83.7%) and 214 (16.3%) sentinel lymph nodes (SLN). 26 SLN were dissected outside the ePLND template. The final pathology demonstrated 46 (3.5%) lymph node metastasis, 31 (67.4%) in the SLNB and 15 (32.6%) in the non-SLN ePLND. At the patient level, 18 (28.1%) patients had pN1. With a mean follow-up of 33.1 months, 4/19 (21.1%) pN1 patients had undetectable PSA, and 3/19 (15.8%) had a PSA < 0.1 ng/mL. Lymph node dissection included 20.6 lymph nodes per patient (IQR 15–24.2), with 3.3 SLNB nodes per patient (IQR 2–4.2). PPV and NPV were 100 and 97.8%, respectively. Sensitivity and specificity were 94.4 and 100%, respectively. FN was 5.5% and FP was 4.3%. Diagnostic yields were 95.3% and the non-diagnostic rate was 4.7%. Conclusion Radiotracer injection into the prostate IL offers promising results for staging purposes in cases in which ePLND is considered. Negative SLNB is a predictor of negative ePLND. Patients with a limited burden of nodal metastasis have a significant chance of remaining free of biochemical recurrence at mid-term follow-up.
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Affiliation(s)
- Lluís Fumadó
- Department of Urology, Hospital del Mar, Barcelona, Spain
- *Correspondence: Lluís Fumadó,
| | | | - Antoni Mestre-Fusco
- Department of Nuclear Medicine, Hospital Universitari de Girona Dr. Josep Trueta, Girona, Spain
| | - Sergi Vidal-Sicart
- Department of Nuclear Medicine, Hospital Clínic i Provincial, Barcelona, Spain
| | | | - Nuria Juanpere
- Department of Pathology, Hospital del Mar, Barcelona, Spain
| | - Lluís Cecchini
- Department of Urology, Hospital del Mar, Barcelona, Spain
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Kalampokis N, Grivas N, Mamoulakis C, Wit E, Karavitakis M, van Leeuwen F, van der Poel H. Gamma camera imaging of sentinel node in prostate cancer. Nucl Med Mol Imaging 2022. [DOI: 10.1016/b978-0-12-822960-6.00210-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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The impact of drainage pathways on the detection of nodal metastases in prostate cancer: a phase II randomized comparison of intratumoral vs intraprostatic tracer injection for sentinel node detection. Eur J Nucl Med Mol Imaging 2021; 49:1743-1753. [PMID: 34748059 DOI: 10.1007/s00259-021-05580-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 09/30/2021] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Previous studies indicated that location and amount of detected sentinel lymph nodes (SLNs) in prostate cancer (PCa) are influenced where SLN-tracer is deposited within the prostate. To validate whether intratumoral (IT) tracer injection helps to increase identification of tumor-positive lymph nodes (LNs) better than intraprostatic (IP) tracer injection, a prospective randomized phase II trial was performed. METHODS PCa patients with a > 5% risk of lymphatic involvement were randomized between ultrasound-guided transrectal injection of indocyanine green-[99mTc]Tc-nanocolloid in 2 depots of 1 mL in the tumor (n = 55, IT-group) or in 4 depots of 0.5 mL in the peripheral zone of the prostate (n = 58, IP-group). Preoperative lymphoscintigraphy and SPECT/CT were used to define the location of the SLNs. SLNs were dissected using combination of radio- and fluorescence-guidance, followed by extended pelvic LN dissection and robot-assisted radical prostatectomy. Outcome measurements were number of tumor-bearing SNs, tumor-bearing LNs, removed nodes, number of patients with nodal metastases, and metastasis-free survival (MFS) of 4-7-year follow-up data. RESULTS IT-injection did not result in significant difference of removed SLNs (5.0 vs 6.0, p = 0.317) and histologically positive SLNs (28 vs 22, p = 0.571). However, in IT-group, the SLN-positive nodes were 73.7% of total positive nodes compared to 37.3% in IP-group (p = 0.015). Moreover, significantly more node-positive patients were found in IT-group (42% vs 24%, p = 0.045), which did not result in worse MFS. In two patients (3.6%) from whom the IT-tracer injection only partly covered intraprostatic tumor spread, nodal metastases in ePLND without tumor-positive SNs were yielded. CONCLUSIONS The percentage-positive SLNs found after IT-injection were significantly higher compared to IP-injection. Significantly more node-positive patients were found using IT-injection, which did not affect MFS. IT-injection failed to detect nodal metastases from non-index satellite lesions. Therefore, we suggest to combine IT- and IP-tracer injections in men with visible tumor on imaging.
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Rietbergen DD, VAN Oosterom MN, Kleinjan GH, Brouwer OR, Valdes-Olmos RA, VAN Leeuwen FW, Buckle T. Interventional nuclear medicine: a focus on radioguided intervention and surgery. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF RADIOPHARMACEUTICAL CHEMISTRY AND BIOLOGY 2021; 65:4-19. [PMID: 33494584 DOI: 10.23736/s1824-4785.21.03286-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Within interventional nuclear medicine (iNM) a prominent role is allocated for the sub-discipline of radioguided surgery. Unique for this discipline is the fact that an increasing number of clinical indications (e.g. lymphatic mapping, local tumor demarcation and/or tumor receptor targeted applications) have been adopted into routine care. The clinical integration is further strengthened by technical innovations in chemistry and engineering that enhance the translational potential of radioguided procedures in iNM. Together, these features not only ensure ongoing expansion of iNM but also warrant a lasting clinical impact for the sub-discipline of radioguided surgery.
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Affiliation(s)
- Daphne D Rietbergen
- Section of Nuclear Medicine, Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands.,Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, the Netherlands
| | - Matthias N VAN Oosterom
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, the Netherlands.,Department of Urology, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Gijs H Kleinjan
- Department of Urology, Leiden University Medical Center, Leiden, the Netherlands
| | - Oscar R Brouwer
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, the Netherlands.,Department of Urology, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Renato A Valdes-Olmos
- Section of Nuclear Medicine, Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Fijs W VAN Leeuwen
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, the Netherlands.,Department of Urology, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Tessa Buckle
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, the Netherlands - .,Department of Urology, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
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Wojtynek NE, Mohs AM. Image-guided tumor surgery: The emerging role of nanotechnology. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 12:e1624. [PMID: 32162485 DOI: 10.1002/wnan.1624] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/12/2020] [Accepted: 02/14/2020] [Indexed: 12/15/2022]
Abstract
Surgical resection is a mainstay treatment for solid tumors. Yet, methods to distinguish malignant from healthy tissue are primarily limited to tactile and visual cues as well as the surgeon's experience. As a result, there is a possibility that a positive surgical margin (PSM) or the presence of residual tumor left behind after resection may occur. It is well-documented that PSMs can negatively impact treatment outcomes and survival, as well as pose an economic burden. Therefore, surgical tumor imaging techniques have emerged as a promising method to decrease PSM rates. Nanoparticles (NPs) have unique characteristics to serve as optical contrast agents during image-guided surgery (IGS). Recently, there has been tremendous growth in the volume and types of NPs used for IGS, including clinical trials. Herein, we describe the most recent contributions of nanotechnology for surgical tumor identification. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Implantable Materials and Surgical Technologies > Nanoscale Tools and Techniques in Surgery Diagnostic Tools > in vivo Nanodiagnostics and Imaging.
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Affiliation(s)
- Nicholas E Wojtynek
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska.,Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Aaron M Mohs
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska.,Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska.,Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska.,Center for Drug Delivery and Nanomedicine, University of Nebraska Medical Center, Omaha, Nebraska
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Geißen W, Engels S, Aust P, Schiffmann J, Gerullis H, Wawroschek F, Winter A. Diagnostic Accuracy of Magnetometer-Guided Sentinel Lymphadenectomy After Intraprostatic Injection of Superparamagnetic Iron Oxide Nanoparticles in Intermediate- and High-Risk Prostate Cancer Using the Magnetic Activity of Sentinel Nodes. Front Pharmacol 2019; 10:1123. [PMID: 31680943 PMCID: PMC6797623 DOI: 10.3389/fphar.2019.01123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 08/30/2019] [Indexed: 01/05/2023] Open
Abstract
Due to the high morbidity of extended lymph node dissection (eLND) and the low detection rate of limited lymph node dissection (LND), targeted sentinel lymph node dissection (sLND) was implemented in prostate cancer (PCa). Subsequently, nonradioactive sentinel lymph node (SLN) detection using magnetic resonance imaging (MRI) and a magnetometer after intraprostatic injection of superparamagnetic iron oxide nanoparticles (SPIONs) was successfully applied in PCa. To validate the reliability of this approach, considering the magnetic activity of SLNs or whether it is sufficient to dissect only the most active SLNs as shown in other tumor entities for radio-guided sLND, we analyzed magnetometer-guided sLND results in 218 high- and intermediate-risk PCa patients undergoing eLND as a reference standard. Using a sentinel nomogram to predict lymph node invasion (LNI), a risk range was determined up to which LND could be dispensed with or sLND only would be adequate. In total, 3,711 LNs were dissected, and 1,779 SLNs (median, 8) were identified. Among 78 LN-positive patients, there were 264 LN metastases (median, 2). sLND had a 96.79% diagnostic rate, 88.16% sensitivity, 98.59% specificity, 97.1% positive predictive value (PPV), 93.96% negative predictive value (NPV), 4.13% false-negative rate, and 0.92% additional diagnostic value (LN metastases only outside the eLND template). For intermediate-risk patients only, the sensitivity, specificity, PPV, and NPV were 100%. Magnetic activities of SLNs were heterogeneous regardless of metastasis. The accuracy of predicting the presence of metastases for each LN from the proportion of activity was only 57.3% in high- and 65% in intermediate-risk patients. Patients with LNI risk of less than 5% could have been spared LND, as no positive LNs were found in this group. For patients with an LNI risk between 5% and 20%, sLND-only would have been sufficient to detect almost all LN metastases; thus, eLND could be dispensed with in 36% of patients. In conclusion, SPION-guided sLND is a reliable alternative to eLND in intermediate-/high-risk PCa. No conclusions can be drawn from magnetic SLN activity regarding the presence of metastases. LND could be dispensed with according to a nomogram of predicted probability for LNI of 5% without losing any LN-positive patient. Patients with LNI risk between 5% and 20% could be spared eLND by performing sLND.
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de Korne CM, Wit EM, de Jong J, Valdés Olmos RA, Buckle T, van Leeuwen FWB, van der Poel HG. Anatomical localization of radiocolloid tracer deposition affects outcome of sentinel node procedures in prostate cancer. Eur J Nucl Med Mol Imaging 2019; 46:2558-2568. [DOI: 10.1007/s00259-019-04443-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/16/2019] [Indexed: 12/22/2022]
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12
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van Leeuwen FWB, Winter A, van Der Poel HG, Eiber M, Suardi N, Graefen M, Wawroschek F, Maurer T. Technologies for image-guided surgery for managing lymphatic metastases in prostate cancer. Nat Rev Urol 2019; 16:159-171. [DOI: 10.1038/s41585-018-0140-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Doughton JA, Hofman MS, Eu P, Hicks RJ, Williams S. A First-in-Human Study of 68Ga-Nanocolloid PET/CT Sentinel Lymph Node Imaging in Prostate Cancer Demonstrates Aberrant Lymphatic Drainage Pathways. J Nucl Med 2018; 59:1837-1842. [DOI: 10.2967/jnumed.118.209171] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 04/30/2018] [Indexed: 11/16/2022] Open
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KleinJan GH, van Werkhoven E, van den Berg NS, Karakullukcu MB, Zijlmans HJMAA, van der Hage JA, van de Wiel BA, Buckle T, Klop WMC, Horenblas S, Valdés Olmos RA, van der Poel HG, van Leeuwen FWB. The best of both worlds: a hybrid approach for optimal pre- and intraoperative identification of sentinel lymph nodes. Eur J Nucl Med Mol Imaging 2018; 45:1915-1925. [PMID: 29696442 PMCID: PMC6132545 DOI: 10.1007/s00259-018-4028-x] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 04/16/2018] [Indexed: 02/05/2023]
Abstract
Purpose Hybrid image-guided surgery technologies such as combined radio- and fluorescence-guidance are increasingly gaining interest, but their added value still needs to be proven. In order to evaluate if and how fluorescence-guidance can help realize improvements beyond the current state-of-the-art in sentinel node (SN) biopsy procedures, use of the hybrid tracer indocyanine green (ICG)-99mTc-nancolloid was evaluated in a large cohort of patients. Patients and methods A prospective trial was conducted (n = 501 procedures) in a heterogeneous cohort of 495 patients with different malignancies (skin malignancies, oral cavity cancer, penile cancer, prostate cancer and vulva cancer). After injection of ICG-99mTc-nanocolloid, SNs were preoperatively identified based on lymphoscintigraphy and SPECT/CT. Intraoperatively, SNs were pursued via gamma tracing, visual identification (blue dye) and/or near-infrared fluorescence imaging during either open surgical procedures (head and neck, penile, vulvar cancer and melanoma) or robot assisted laparoscopic surgery (prostate cancer). As the patients acted as their own control, use of hybrid guidance could be compared to conventional radioguidance and the use of blue dye (n = 300). This was based on reported surgical complications, overall survival, LN recurrence free survival, and false negative rates (FNR). Results A total of 1,327 SN-related hotspots were identified on 501 preoperative SPECT/CT scans. Intraoperatively, a total number of 1,643 SNs were identified based on the combination of gamma-tracing (>98%) and fluorescence-guidance (>95%). In patients wherein blue dye was used (n = 300) fluorescence-based SN detection was superior over visual blue dye-based detection (22–78%). No adverse effects related to the use of the hybrid tracer or the fluorescence-guidance procedure were found and outcome values were not negatively influenced. Conclusion With ICG-99mTc-nanocolloid, the SN biopsy procedure has become more accurate and independent of the use of blue dye. With that, the procedure has evolved to be universal for different malignancies and anatomical locations. Electronic supplementary material The online version of this article (10.1007/s00259-018-4028-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- G H KleinJan
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Albinusdreef 2 (C2-S zone), PO BOX 9600, 2300 RC, Leiden, The Netherlands
- Department of Nuclear Medicine, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
- Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - E van Werkhoven
- Department of Biostatistics, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - N S van den Berg
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Albinusdreef 2 (C2-S zone), PO BOX 9600, 2300 RC, Leiden, The Netherlands
- Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
- Department of Head and Neck Surgery and Oncology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - M B Karakullukcu
- Department of Head and Neck Surgery and Oncology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - H J M A A Zijlmans
- Department of Gynecology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - J A van der Hage
- Department of Surgery, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - B A van de Wiel
- Department of Pathology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - T Buckle
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Albinusdreef 2 (C2-S zone), PO BOX 9600, 2300 RC, Leiden, The Netherlands
| | - W M C Klop
- Department of Head and Neck Surgery and Oncology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - S Horenblas
- Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - R A Valdés Olmos
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Albinusdreef 2 (C2-S zone), PO BOX 9600, 2300 RC, Leiden, The Netherlands
- Department of Nuclear Medicine, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - H G van der Poel
- Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - F W B van Leeuwen
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Albinusdreef 2 (C2-S zone), PO BOX 9600, 2300 RC, Leiden, The Netherlands.
- Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.
- Department of Head and Neck Surgery and Oncology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.
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Moncayo VM, Alazraki AL, Alazraki NP, Aarsvold JN. Sentinel Lymph Node Biopsy Procedures. Semin Nucl Med 2017; 47:595-617. [DOI: 10.1053/j.semnuclmed.2017.06.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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van der Poel HG, Meershoek P, Grivas N, KleinJan G, van Leeuwen FWB, Horenblas S. Sentinel node biopsy and lymphatic mapping in penile and prostate cancer. Urologe A 2017; 56:13-17. [PMID: 27853841 DOI: 10.1007/s00120-016-0270-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Nodal metastases are linked to poor outcome in men with penile or prostate cancer. Early detection and resection are important for staging and for the prognosis. However, lymphadenectomy is associated with morbidity and may miss metastases when performed solely on the basis of anatomical templates. METHODS In this article we describe the technique and benefits of sentinel node biopsy (SNB) and provide a review of the literature. RESULTS Dynamic sentinel node techniques using both radioactive and optical (hybrid) tracers have been proven effective in penile cancer. For prostate cancer, SNB added to extended nodal dissection may further tailor dissection to the highly variable lymphatic drainage patterns in the pelvis. The sensitivity of SNB was found to be superior to conventional imaging methods; however, false-negative SNB procedures can occur and a complementary extensive lymphadenectomy is required to remove additional positive nodes that were not detected in the SNB template. CONCLUSION SNB is a standard method for early detection of nodal metastases in penile cancer and provides superior diagnostic accuracy to conventional imaging modalities in prostate cancer.
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Affiliation(s)
- H G van der Poel
- Department of Urology, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands.
| | - P Meershoek
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - N Grivas
- Department of Urology, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands
| | - G KleinJan
- Department of Urology, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands
| | - F W B van Leeuwen
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - S Horenblas
- Department of Urology, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands
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Xia L, Zeh R, Mizelle J, Newton A, Predina J, Nie S, Singhal S, Guzzo TJ. Near-infrared Intraoperative Molecular Imaging Can Identify Metastatic Lymph Nodes in Prostate Cancer. Urology 2017; 106:133-138. [PMID: 28438626 PMCID: PMC11090243 DOI: 10.1016/j.urology.2017.04.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 02/09/2017] [Accepted: 04/12/2017] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To propose a novel method to perform indocyanine green (ICG) based near-infrared (NIR) fluorescence imaging during pelvic lymph node dissection (PLND) for prostate cancer patients with lymph node metastasis (LNM). MATERIALS AND METHODS A prostate cancer cell line PC3 was used to establish xenograft model in NOD/SCID mice. After tumor growth, the mice were injected with ICG through the tail vein. Xenografts and surrounding tissues were imaged with NIR camera 24 hours after intravenous ICG, and tumor-to-background ratios were calculated. We then performed a pilot human study to evaluate the role of NIR imaging in robotic PLND after systemic ICG in 4 patients with prostate cancer and preoperative lymphadenopathy. RESULTS ICG localized to PC3 xenografts in the mice and all xenografts were highly fluorescent compared with surrounding tissues, with a median tumor-to-background ratio of 2.85 (interquartile range = 2.64-3.90). In the human study, intraoperative in vivo NIR imaging identified 3 of the 4 preoperative lymphadenopathies as fluorescence-positive, and back table ex vivo NIR imaging identified all 4 lymphadenopathies as fluorescence-positive. All the lymphadenopathies were found to be LNMs by pathologic examination. Two of the four cases had additional LNMs, all of which were fluorescence-positive with intraoperative in vivo NIR imaging. CONCLUSION Intravenously administered ICG accumulates in prostate cancers in both a murine model and human patients. NIR fluorescence based on intravenous ICG may serve as a useful tool to facilitate the identification of positive nodes during PLND in patients with higher risk of LNMs.
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Affiliation(s)
- Leilei Xia
- Division of Urology, Department of Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA; Center for Precision Surgery, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Ryan Zeh
- Center for Precision Surgery, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA; Department of Neurosurgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Jack Mizelle
- Center for Precision Surgery, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA; Division of Thoracic Surgery and Thoracic Surgery Research Laboratory, Department of Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Andrew Newton
- Center for Precision Surgery, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA; Division of Thoracic Surgery and Thoracic Surgery Research Laboratory, Department of Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Jarrod Predina
- Center for Precision Surgery, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA; Division of Thoracic Surgery and Thoracic Surgery Research Laboratory, Department of Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Shuming Nie
- Department of Biomedical Engineering, Emory University, Atlanta, GA
| | - Sunil Singhal
- Center for Precision Surgery, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA; Division of Thoracic Surgery and Thoracic Surgery Research Laboratory, Department of Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Thomas J Guzzo
- Division of Urology, Department of Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA; Center for Precision Surgery, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA.
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Sentinel Lymph Node Dissection to Select Clinically Node-negative Prostate Cancer Patients for Pelvic Radiation Therapy: Effect on Biochemical Recurrence and Systemic Progression. Int J Radiat Oncol Biol Phys 2017; 97:347-354. [DOI: 10.1016/j.ijrobp.2016.10.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 09/24/2016] [Accepted: 10/11/2016] [Indexed: 02/01/2023]
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Buckle T, van der Wal S, van Malderen SJ, Müller L, Kuil J, van Unen V, Peters RJ, van Bemmel ME, McDonnell LA, Velders AH, Koning F, Vanhaeke F, van Leeuwen FWB. Hybrid Imaging Labels: Providing the Link Between Mass Spectrometry-Based Molecular Pathology and Theranostics. Theranostics 2017; 7:624-633. [PMID: 28255355 PMCID: PMC5327638 DOI: 10.7150/thno.17484] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 11/16/2016] [Indexed: 01/28/2023] Open
Abstract
Background: Development of theranostic concepts that include inductively coupled plasma mass spectrometry (ICP-MS) and laser ablation ICP-MS (LA-ICP-MS) imaging can be hindered by the lack of a direct comparison to more standardly used methods for in vitro and in vivo evaluation; e.g. fluorescence or nuclear medicine. In this study a bimodal (or rather, hybrid) tracer that contains both a fluorescent dye and a chelate was used to evaluate the existence of a direct link between mass spectrometry (MS) and in vitro and in vivo molecular imaging findings using fluorescence and radioisotopes. At the same time, the hybrid label was used to determine whether the use of a single isotope label would allow for MS-based diagnostics. Methods: A hybrid label that contained both a DTPA chelate (that was coordinated with either 165Ho or 111In) and a Cy5 fluorescent dye was coupled to the chemokine receptor 4 (CXCR4) targeting peptide Ac-TZ14011 (hybrid-Cy5-Ac-TZ4011). This receptor targeting tracer was used to 1) validate the efficacy of (165Ho-based) mass-cytometry in determining the receptor affinity via comparison with fluorescence-based flow cytometry (Cy5), 2) evaluate the microscopic binding pattern of the tracer in tumor cells using both fluorescence confocal imaging (Cy5) and LA-ICP-MS-imaging (165Ho), 3) compare in vivo biodistribution patterns obtained with ICP-MS (165Ho) and radiodetection (111In) after intravenous administration of hybrid-Cy5-Ac-TZ4011 in tumor-bearing mice. Finally, LA-ICP-MS-imaging (165Ho) was linked to fluorescence-based analysis of excised tissue samples (Cy5). Results: Analysis with both mass-cytometry and flow cytometry revealed a similar receptor affinity, respectively 352 ± 141 nM and 245 ± 65 nM (p = 0.08), but with a much lower detection sensitivity for the first modality. In vitro LA-ICP-MS imaging (165Ho) enabled clear discrimination between CXCR4 positive and negative cells, but fluorescence microscopy was required to determine the intracellular distribution. In vivo biodistribution patterns obtained with ICP-MS (165Ho) and radiodetection (111In) of the hybrid peptide were shown to be similar. Assessment of tracer distribution in excised tissues revealed the location of tracer uptake with both LA-ICP-MS-imaging and fluorescence imaging. Conclusion: Lanthanide-isotope chelation expands the scope of fluorescent/radioactive hybrid tracers to include MS-based analytical tools such as mass-cytometry, ICP-MS and LA-ICP-MS imaging in molecular pathology. In contradiction to common expectations, MS detection using a single chelate imaging agent was shown to be feasible, enabling a direct link between nuclear medicine-based imaging and theranostic methods.
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Lymph Node Fluorescence During Robot-Assisted Radical Prostatectomy With Indocyanine Green: Prospective Dosing Analysis. Clin Genitourin Cancer 2016; 15:e529-e534. [PMID: 27939590 DOI: 10.1016/j.clgc.2016.10.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 10/24/2016] [Accepted: 10/29/2016] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To prospectively assess the ideal dosing and the value of fluorescent sentinel lymph node (LN) detection with indocyanine green (ICG) for the detection of LN metastases in intermediate- and high-risk patients undergoing robot-assisted prostatectomy and extended pelvic LN dissection (ePLND). PATIENTS AND METHODS Twenty patients received transperineal prostatic injections of ICG. Patients were cycled through 5 doses (1.25, 2.5, 3.75, 5, and 7.5 mg) so optimal ICG dosing could be discovered early. RESULTS ICG injection was able to identify fluorescent LN (FLN) packets in all 20 patients. Compared to the higher ICG doses, the 1.25 and 2.5 mg doses had fewer FLN packets and were abandoned after 1 dose each. The median number of FLN packets was 4.0, 6.0, and 4.5 for the respective doses of 3.75, 5.0, and 7.5 mg. The external iliac group was the most common site of fluorescence in 27.2% of patients, followed by the common iliac (21.3%), obturator (20.3%), internal iliac (18.5%), and node of Cloquet (7.7%). Seven (35%) of 20 patients had node-positive disease. Of the 5 patients that had fluorescent tissue outside of our ePLND template, 1 had a positive node present in the anterior bladder neck fat. Across all patients, ICG had 62% sensitivity, 50% specificity, 8% positive predictive value, and 95% negative predictive value in detecting LN metastases. CONCLUSION The low sensitivity of ICG for the detection of LN metastases highlights why FLN dissection with ICG does not represent an alternative to ePLND.
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Munbauhal G, Seisen T, Gomez FD, Peyronnet B, Cussenot O, Shariat SF, Rouprêt M. Current perspectives of sentinel lymph node dissection at the time of radical surgery for prostate cancer. Cancer Treat Rev 2016; 50:228-239. [DOI: 10.1016/j.ctrv.2016.09.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/22/2016] [Accepted: 09/27/2016] [Indexed: 11/15/2022]
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Brouwer OR, van der Poel HG, Bevers RF, van Gennep EJ, Horenblas S. Beyond penile cancer, is there a role for sentinel node biopsy in urological malignancies? Clin Transl Imaging 2016; 4:395-410. [PMID: 27738628 PMCID: PMC5037151 DOI: 10.1007/s40336-016-0189-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 05/30/2016] [Indexed: 11/30/2022]
Abstract
This review aims to discuss the current state-of-the-art of sentinel node (SN) mapping in urological malignancies. The principles and methodological aspects of lymphatic mapping and SN biopsy in urological malignancies are reviewed. Literature search was restricted to English language. The references of the retrieved articles were examined to identify additional articles. The review also includes meta-analyses published in the past 5 years. SN biopsy for penile cancer is recommended by the European Association of Urology as the preferred staging tool for clinically node-negative patients with at least T1G2 tumours (level of evidence 2a, Grade B). The feasibility of SN biopsy in prostate cancer has been repeatedly demonstrated and its potential value is increasingly being recognised. However, conclusive prospective clinical data as well as consensus on methodology and patient selection are still lacking. For bladder, renal and testicular cancer, only few studies have been published, and concerns around high false-negative rates remain. Throughout the years, the uro-oncological field has portrayed a pivotal role in the development of the SN concept. Recent advances such as hybrid tracers and novel intraoperative detection tools such as fluorescence and portable gamma imaging will hopefully encourage prospectively designed clinical trials which can further substantiate the potential of the SN approach in becoming an integral part of staging in urological malignancies beyond penile cancer.
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Affiliation(s)
- O R Brouwer
- Department of Urologyand Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands ; Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - H G van der Poel
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - R F Bevers
- Department of Urologyand Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - E J van Gennep
- Department of Urologyand Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - S Horenblas
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
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Sentinel lymph node detection during radical prostatectomy for prostate cancer: current evidence and results of our experience. Urologia 2016; 83:124-129. [PMID: 27338980 DOI: 10.5301/uro.5000181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2016] [Indexed: 11/20/2022]
Abstract
PURPOSE A sentinel lymph node (SNL) is the primary landing zone of cancer cells that spreads through the lymphatic vessels. The rational of the detection of sentinel node (SLN) during radical prostatectomy (RP) for prostate cancer (PCa) is the removal of the first nodal stations to provide a restriction of the template of node dissection. A review of the outcomes of SNL detection during RP for PCa was performed. MATERIALS AND METHODS A systematic review of the literature was conducted, searching on PubMed and Web of Science, using the following keywords: lymph node dissection, prostatic neoplasm, sentinel node. RESULTS Twenty articles were selected and analyzed including over 2000 PCa patients. Although promising and technically feasible, many points remain to be clarified before clinical application can be recommended. CONCLUSIONS The technique of SNL detection is feasible and provides a higher sensitivity and detection rate than standard lymphadenectomy, especially for organ-confined tumors. Larger series and long-term follow-up data are mandatory to assess the oncologic effectiveness of the detection of SNL for PCa.
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KleinJan G, Brouwer O, Mathéron H, Rietbergen D, Valdés Olmos R, Wouters M, van den Berg N, van Leeuwen F. Hybrid radioguided occult lesion localization (hybrid ROLL) of 18 F-FDG-avid lesions using the hybrid tracer indocyanine green- 99m Tc-nanocolloid. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.remnie.2016.04.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hybrid radioguided occult lesion localization (hybrid ROLL) of (18)F-FDG-avid lesions using the hybrid tracer indocyanine green-(99m)Tc-nanocolloid. Rev Esp Med Nucl Imagen Mol 2016; 35:292-7. [PMID: 27174865 DOI: 10.1016/j.remn.2016.04.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 01/31/2023]
Abstract
PURPOSE To assess if combined fluorescence- and radio-guided occult lesion localization (hybrid ROLL) is feasible in patients scheduled for surgical resection of non-palpable (18)F-FDG-avid lesions on PET/CT. METHODS Four patients with (18)F-FDG-avid lesions on follow-up PET/CT that were not palpable during physical examination but were suspected to harbor metastasis were enrolled. Guided by ultrasound, the hybrid tracer indocyanine green (ICG)-(99m)Tc-nanocolloid was injected centrally in the target lesion. SPECT/CT imaging was used to confirm tracer deposition. Intraoperatively, lesions were localized using a hand-held gamma ray detection probe, a portable gamma camera, and a fluorescence camera. After excision, the gamma camera was used to check the wound bed for residual activity. RESULTS A total of six (18)F-FDG-avid lymph nodes were identified and scheduled for hybrid ROLL. Comparison of the PET/CT images with the acquired SPECT/CT after hybrid tracer injection confirmed accurate tracer deposition. No side effects were observed. Combined radio- and fluorescence-guidance enabled localization and excision of the target lesion in all patients. Five of the six excised lesions proved tumor-positive at histopathology. CONCLUSION The hybrid ROLL approach appears to be feasible and can facilitate the intraoperative localization and excision of non-palpable lesions suspected to harbor tumor metastases. In addition to the initial radioguided detection, the fluorescence component of the hybrid tracer enables high-resolution intraoperative visualization of the target lesion. The procedure needs further evaluation in a larger cohort and wider range of malignancies to substantiate these preliminary findings.
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van Leeuwen FWB, Valdés-Olmos R, Buckle T, Vidal-Sicart S. Hybrid surgical guidance based on the integration of radionuclear and optical technologies. Br J Radiol 2016; 89:20150797. [PMID: 26943463 DOI: 10.1259/bjr.20150797] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
With the evolution of imaging technologies and tracers, the applications for nuclear molecular imaging are growing rapidly. For example, nuclear medicine is increasingly being used to guide surgical resections in complex anatomical locations. Here, a future workflow is envisioned that uses a combination of pre-operative diagnostics, navigation and intraoperative guidance. Radioguidance can provide means for pre-operative and intraoperative identification of "hot" lesions, forming the basis of a virtual data set that can be used for navigation. Luminescence guidance has shown great potential in the intraoperative setting by providing optical feedback, in some cases even in real time. Both of these techniques have distinct drawbacks, which include inaccuracy in areas that contain a background signal (radioactivity) or a limited degree of signal penetration (luminescence). We, and others, have reasoned that hybrid/multimodal approaches that integrate the use of these complementary modalities may help overcome their individual weaknesses. Ultimately, this will lead to advancement of the field of interventional molecular imaging/image-guided surgery. In this review, an overview of clinically applied hybrid surgical guidance technologies is given, whereby the focus is placed on tracers and hardware.
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Affiliation(s)
- Fijs W B van Leeuwen
- 1 Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | - Renato Valdés-Olmos
- 1 Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, Netherlands.,2 Department of Nuclear Medicine, Netherlands Cancer Institute-Antoni van Leeuwenhoek, Amsterdam, Netherlands
| | - Tessa Buckle
- 1 Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | - Sergi Vidal-Sicart
- 3 Nuclear Medicine Department, Hospital Clínic of Barcelona, Barcelona, Spain
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KleinJan GH, van den Berg NS, de Jong J, Wit EM, Thygessen H, Vegt E, van der Poel HG, van Leeuwen FWB. Multimodal hybrid imaging agents for sentinel node mapping as a means to (re)connect nuclear medicine to advances made in robot-assisted surgery. Eur J Nucl Med Mol Imaging 2016; 43:1278-87. [PMID: 26768422 PMCID: PMC4865539 DOI: 10.1007/s00259-015-3292-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 12/10/2015] [Indexed: 12/14/2022]
Abstract
Purpose Radical prostatectomy and complementary extended pelvic lymph node dissection (ePLND) of sentinel lymph nodes (SNs) and non-sentinel lymph nodes (LNs) at risk of containing metastases are increasingly being performed using high-tech robot-assisted approaches. Although this technological evolution has clear advantages, the physical nature of robotic systems limits the integrated use of routine radioguided surgery technologies. Hence, engineering effort in robotics are focused on the integration of fluorescence guidance technologies. Using the hybrid SN tracer indocyanine green-99mTc-nanocolloid (radioactive and fluorescent), for the first time in combination with a robot-integrated laparoscope, we investigated whether the robot-assisted approach affects the accuracy of fluorescence detection of SNs identified preoperatively using nuclear medicine. Methods The study included 55 patients (Briganti nomogram-based risk >5 % on LN metastases) scheduled for robot-assisted radical prostatectomy, SN biopsy and ePLND. Following indocyanine green-99mTc-nanocolloid injection, preoperative nuclear imaging (lymphoscintigraphy and SPECT/CT) was used to locate the SN(s). The fluorescence laparoscope was used intraoperatively to identify the SN(s) with standard fluorescence settings (in 50 patients) and with customized settings (in 5 patients). The number and location of the SNs, the radioactive, fluorescence (both in vivo and ex vivo) and tumour status of the resected SNs/LNs, and postoperative complications were recorded and analysed. Results Combined, preoperative lymphoscintigraphy and SPECT/CT imaging identified 212 SNs (median 4 per patient). Intraoperative fluorescence imaging using standard fluorescence settings visualized 80.4 % (148/184 SNs; 50 patients; ex vivo 97.8 %). This increased to 85.7 % (12/14 SNs; 5 patients; ex vivo 100 %) with customized fluorescence settings. SPECT/CT images provided guidance towards the residual SNs. Ex vivo all removed SNs were radioactive. SNs were tumour-positive in 25.4 % of patients (14/55; false-negative rate 7 %, 1/14 patients). In ten patients, the SN was the only tumour-positive LN. Surgical complications were minimal. Conclusion Directly linking 3D preoperative nuclear imaging information on SNs to a robot-integrated fluorescence laparoscope improved the surgeon’s use of the technology and did not influence the sensitivity or morbidity of the procedure. To our surprise, however, the detection rates with the current fluorescence camera did not improve.
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Affiliation(s)
- Gijs H KleinJan
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Hospital, Albinusdreef 2, 2300RC, Leiden, The Netherlands.,Department of Nuclear Medicine, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands
| | - Nynke S van den Berg
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Hospital, Albinusdreef 2, 2300RC, Leiden, The Netherlands.,Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands
| | - Jeroen de Jong
- Department of Pathology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands
| | - Esther M Wit
- Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands
| | - Helene Thygessen
- Department of Biostatistics, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands
| | - Erik Vegt
- Department of Nuclear Medicine, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands
| | - Henk G van der Poel
- Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands
| | - Fijs W B van Leeuwen
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Hospital, Albinusdreef 2, 2300RC, Leiden, The Netherlands. .,Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands. .,Department of Head and Neck Surgery & Oncology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands.
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Sentinel node approach in prostate cancer. Rev Esp Med Nucl Imagen Mol 2015. [DOI: 10.1016/j.remnie.2015.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Thorek DLJ, Ulmert D, Diop NFM, Lupu ME, Doran MG, Huang R, Abou DS, Larson SM, Grimm J. Non-invasive mapping of deep-tissue lymph nodes in live animals using a multimodal PET/MRI nanoparticle. Nat Commun 2015; 5:3097. [PMID: 24445347 DOI: 10.1038/ncomms4097] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 12/12/2013] [Indexed: 11/09/2022] Open
Abstract
The invasion status of tumour-draining lymph nodes (LNs) is a critical indicator of cancer stage and is important for treatment planning. Clinicians currently use planar scintigraphy and single-photon emission computed tomography (SPECT) with (99m)Tc-radiocolloid to guide biopsy and resection of LNs. However, emerging multimodality approaches such as positron emission tomography combined with magnetic resonance imaging (PET/MRI) detect sites of disease with higher sensitivity and accuracy. Here we present a multimodal nanoparticle, (89)Zr-ferumoxytol, for the enhanced detection of LNs with PET/MRI. For genuine translational potential, we leverage a clinical iron oxide formulation, altered with minimal modification for radiolabelling. Axillary drainage in naive mice and from healthy and tumour-bearing prostates was investigated. We demonstrate that (89)Zr-ferumoxytol can be used for high-resolution tomographic studies of lymphatic drainage in preclinical disease models. This nanoparticle platform has significant translational potential to improve preoperative planning for nodal resection and tumour staging.
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Affiliation(s)
- Daniel L J Thorek
- 1] Division of Nuclear Medicine, Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins School of Medicine, 601 N. Caroline Street, JHOC 3223, Baltimore, Maryland 21287, USA [2] Department of Radiology, Memorial Sloan-Kettering Cancer Center (MSKCC), 1275 York Street, Box 248, New York, New York 10065, USA
| | - David Ulmert
- 1] Department of Surgery, Memorial Sloan-Kettering Cancer Center (MSKCC), 1275 York Street, Box 248, New York, New York 10065, USA [2] Department of Urology, Lund University, Skåne University Hospital, SE-205 02 Malmö, Sweden
| | - Ndeye-Fatou M Diop
- Department of Biomedical Engineering, The City College of New York, ST-401, 160 Convent Avenue, New York, New York 10031, USA
| | - Mihaela E Lupu
- Department of Medical Physics, Memorial Sloan-Kettering Cancer Center (MSKCC), 1275 York Street, Box 248, New York, New York 10065, USA
| | - Michael G Doran
- Department of Radiology, Memorial Sloan-Kettering Cancer Center (MSKCC), 1275 York Street, Box 248, New York, New York 10065, USA
| | - Ruimin Huang
- Department of Radiology, Memorial Sloan-Kettering Cancer Center (MSKCC), 1275 York Street, Box 248, New York, New York 10065, USA
| | - Diane S Abou
- Division of Nuclear Medicine, Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins School of Medicine, 601 N. Caroline Street, JHOC 3223, Baltimore, Maryland 21287, USA
| | - Steven M Larson
- 1] Department of Radiology, Memorial Sloan-Kettering Cancer Center (MSKCC), 1275 York Street, Box 248, New York, New York 10065, USA [2] Program in Molecular Pharmacology and Chemistry, Memorial Sloan-Kettering Cancer Center (MSKCC), 1275 York Street, Box 248, New York, New York 10065, USA
| | - Jan Grimm
- 1] Department of Radiology, Memorial Sloan-Kettering Cancer Center (MSKCC), 1275 York Street, Box 248, New York, New York 10065, USA [2] Program in Molecular Pharmacology and Chemistry, Memorial Sloan-Kettering Cancer Center (MSKCC), 1275 York Street, Box 248, New York, New York 10065, USA
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Vidal-Sicart S, Valdés Olmos RA. Sentinel node approach in prostate cancer. Rev Esp Med Nucl Imagen Mol 2015; 34:358-71. [PMID: 26391573 DOI: 10.1016/j.remn.2015.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 07/19/2015] [Indexed: 11/17/2022]
Abstract
In general terms, one of the main objectives of sentinel lymph node (SLN) biopsy is to identify the 20-25% of patients with occult regional metastatic involvement. This technique reduces the associated morbidity from lymphadenectomy, as well as increasing the identification rate of occult lymphatic metastases by offering the pathologist those lymph nodes with the highest probability of containing metastatic cells. Pre-surgical lymphoscintigraphy is considered a "road map" to guide the surgeon towards the sentinel nodes and to ascertain unpredictable lymphatic drainages. In prostate cancer this aspect is essential due to the multidirectional character of the lymphatic drainage in the pelvis. In this context the inclusion of SPECT/CT should be mandatory in order to improve the SLN detection rate, to clarify the location when SLNs are difficult to interpret on planar images, to achieve a better definition of them in locations close to injection site, and to provide anatomical landmarks to be recognized during operation to locate SLNs. Conventional and laparoscopic hand-held gamma probes allow the SLN technique to be applied in any kind of surgery. The introduction and combination of new tracers and devices refines this technique, and the use of intraoperative images. These aspects become of vital importance due to the recent incorporation of robot-assisted procedures for SLN biopsy. In spite of these advances various aspects of SLN biopsy in prostate cancer patients still need to be discussed, and therefore their clinical application is not widely used.
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Affiliation(s)
- S Vidal-Sicart
- Nuclear Medicine Department, Hospital Clínic Barcelona, Barcelona, Spain.
| | - R A Valdés Olmos
- Interventional Molecular Imaging and Nuclear Medicine Section, Leiden University Medical Centre, Leiden, The Netherlands; Nuclear Medicine Department, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
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van Leeuwen FWB, Hardwick JCH, van Erkel AR. Luminescence-based Imaging Approaches in the Field of Interventional Molecular Imaging. Radiology 2015; 276:12-29. [PMID: 26101919 DOI: 10.1148/radiol.2015132698] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Luminescence imaging-based guidance technologies are increasingly gaining interest within surgical and radiologic disciplines. Their promise to help visualize molecular features of disease in real time and with microscopic detail is considered desirable. Integrating luminescence imaging with three-dimensional radiologic- and/or nuclear medicine-based preinterventional imaging may overcome limitations such as the limited tissue penetration of luminescence signals. At the same time, the beneficial features of luminescence imaging may be used to complement the routinely used radiologic- and nuclear medicine-based modalities. To fully exploit this integrated concept, and to relate the largely experimental luminesce-based guidance approaches into perspective with routine imaging approaches, it is essential to understand the advantages and limitations of this relatively new modality. By providing an overview of the available luminescence technologies and the various clinically evaluated exogenous luminescent tracers (fluorescent, hybrid, and theranostic tracers), this review attempts to place luminescence-based interventional molecular imaging technologies into perspective to the available radiologic- and/or nuclear medicine-based imaging technologies. At the same time, the transition from anatomic to physiologic and even molecular interventional luminescence imaging is illustrated.
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Affiliation(s)
- Fijs W B van Leeuwen
- From the Department of Radiology, Interventional Molecular Imaging Laboratory and Section of Interventional Radiology (F.W.B.v.L., A.R.v.E.), and Department of Gastroenterology (J.C.H.H.), Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, the Netherlands
| | - James C H Hardwick
- From the Department of Radiology, Interventional Molecular Imaging Laboratory and Section of Interventional Radiology (F.W.B.v.L., A.R.v.E.), and Department of Gastroenterology (J.C.H.H.), Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, the Netherlands
| | - Arian R van Erkel
- From the Department of Radiology, Interventional Molecular Imaging Laboratory and Section of Interventional Radiology (F.W.B.v.L., A.R.v.E.), and Department of Gastroenterology (J.C.H.H.), Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, the Netherlands
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Acar C, Kleinjan GH, van den Berg NS, Wit EMK, van Leeuwen FWB, van der Poel HG. Advances in sentinel node dissection in prostate cancer from a technical perspective. Int J Urol 2015; 22:898-909. [DOI: 10.1111/iju.12863] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 06/07/2015] [Indexed: 01/23/2023]
Affiliation(s)
- Cenk Acar
- Department of Urology; Acibadem University School of Medicine; Istanbul Turkey
| | - Gijs H Kleinjan
- Interventional Molecular Imaging Laboratory; Department of Radiology; Leiden University Medical Centre; Leiden the Netherlands
- Department of Nuclear Medicine; The Netherlands Cancer Institute; Antoni van Leeuwenhoek Hospital; Amsterdam the Netherlands
| | - Nynke S van den Berg
- Interventional Molecular Imaging Laboratory; Department of Radiology; Leiden University Medical Centre; Leiden the Netherlands
- Department of Urology; The Netherlands Cancer Institute; Antoni van Leeuwenhoek Hospital; Amsterdam the Netherlands
| | - Esther MK Wit
- Department of Urology; The Netherlands Cancer Institute; Antoni van Leeuwenhoek Hospital; Amsterdam the Netherlands
| | - Fijs WB van Leeuwen
- Interventional Molecular Imaging Laboratory; Department of Radiology; Leiden University Medical Centre; Leiden the Netherlands
- Department of Urology; The Netherlands Cancer Institute; Antoni van Leeuwenhoek Hospital; Amsterdam the Netherlands
| | - Henk G van der Poel
- Department of Urology; The Netherlands Cancer Institute; Antoni van Leeuwenhoek Hospital; Amsterdam the Netherlands
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Van den Bergh L, Joniau S, Haustermans K, Deroose CM, Isebaert S, Oyen R, Mottaghy FM, Ameye F, Berkers J, Van Poppel H, Lerut E. Reliability of sentinel node procedure for lymph node staging in prostate cancer patients at high risk for lymph node involvement. Acta Oncol 2015; 54:896-902. [PMID: 25591936 DOI: 10.3109/0284186x.2014.987354] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIM To investigate the reliability of a sentinel node (SN) procedure for nodal staging in prostate cancer (PCa) patients at high risk for lymph node (LN) involvement. MATERIAL AND METHODS Seventy-four patients with localized prostate adenocarcinoma, who were clinically node-negative and had a risk of LN involvement of ≥ 10% (Partin tables), were prospectively enrolled. Upon intraprostatic 99mTc-nanocolloid injection, they underwent planar scintigraphy and SPECT imaging. Surgical removal of the SN, located by means of a gamma probe, was completed with a superextended LN dissection (seLND) as a reference and followed by radical prostatectomy. RESULTS In total, 470 SN (median 6, IQR 3-9) were scintigraphically detected of which 371 (median 4, IQR 2-6) were located by gamma probe and selectively removed during surgery (79%). Histopathology confirmed LN metastases in 37 patients (50%) having 106 affected LN in total (median number per patient 2, IQR 1-4). Twenty-eight patients were node positive (N+) based on the analysis of the resected SN. However, the seLND that was performed as a reference revealed nine additional N+ patients resulting in a sensitivity of 76% (28/37). In total, 15 of 37 patients (41%) had metastases in SN only and could have been spared seLND to remove all affected nodes. CONCLUSION We found a relatively low sensitivity when addressing the SN procedure for nodal staging in PCa patients at high risk for LN involvement. Importantly, only less than half of the N+ patients could have been spared a seLND to remove all affected lymphoid tissue.
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Affiliation(s)
- Laura Van den Bergh
- Radiation Oncology, University Hospitals Leuven & Department of Oncology , KU Leuven, Leuven , Belgium
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Yuen K, Miura T, Sakai I, Kiyosue A, Yamashita M. Intraoperative Fluorescence Imaging for Detection of Sentinel Lymph Nodes and Lymphatic Vessels during Open Prostatectomy using Indocyanine Green. J Urol 2015; 194:371-7. [PMID: 25584996 DOI: 10.1016/j.juro.2015.01.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2015] [Indexed: 01/14/2023]
Abstract
PURPOSE We investigated the feasibility and validity of intraoperative fluorescence imaging using indocyanine green for the detection of sentinel lymph nodes and lymphatic vessels during open prostatectomy. MATERIALS AND METHODS Indocyanine green was injected into the prostate under transrectal ultrasound guidance just before surgery. Intraoperative fluorescence imaging was performed using a near-infrared camera system in 66 consecutive patients with clinically localized prostate cancer after a 10-patient pilot test to optimize indocyanine green dosing, observation timing and injection method. Lymphatic vessels were visualized and followed to identify the sentinel lymph nodes. Confirmatory pelvic lymph node dissection including all fluorescent nodes and open radical prostatectomy were performed in all patients. RESULTS Lymphatic vessels were successfully visualized in 65 patients (98%) and sentinel lymph nodes in 64 patients (97%). Sentinel lymph nodes were located in the obturator fossa, internal and external iliac regions, and rarely in the common iliac and presacral regions. A median of 4 sentinel lymph nodes per patient was detected. Three lymphatic pathways, the paravesical, internal and lateral routes, were identified. Pathological examination revealed metastases to 9 sentinel lymph nodes in 6 patients (9%). All pathologically positive lymph nodes were detected as sentinel lymph nodes using this imaging. No adverse reactions due to the use of indocyanine green were observed. CONCLUSIONS Intraoperative fluorescence imaging using indocyanine green during open prostatectomy enables the detection of lymphatic vessels and sentinel lymph nodes with high sensitivity. This novel method is technically feasible, safe and easy to apply with minimal additional operative time.
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Affiliation(s)
- Keiji Yuen
- Department of Urology, Shinko Hospital, Kobe, Japan
| | | | - Iori Sakai
- Department of Urology, Shinko Hospital, Kobe, Japan
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Winter A, Woenkhaus J, Wawroschek F. A novel method for intraoperative sentinel lymph node detection in prostate cancer patients using superparamagnetic iron oxide nanoparticles and a handheld magnetometer: the initial clinical experience. Ann Surg Oncol 2014; 21:4390-6. [PMID: 25190119 PMCID: PMC4218978 DOI: 10.1245/s10434-014-4024-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Indexed: 01/02/2023]
Abstract
BACKGROUND A sentinel lymph node (SLN) biopsy using superparamagnetic iron oxide nanoparticles (SPIOs) as a tracer instead of radioisotopes was first applied successfully in breast cancer. This study determined the feasibility of this new technique using SPIOs and a handheld magnetometer to detect SLNs in prostate cancer (PC). METHODS Enrolled 20 patients with intermediate and high-risk PC (PSA >10 and/or Gleason score >7) in a prospective study (12/2013-1/2014; DRKS00005473), following an ethics committee approval. After transrectal intraprostatic SPIOs injection a day earlier, patients (19/20) underwent magnetometer-guided sentinel lymphadenectomy (sPLND) and extended PLND, followed by radical prostatectomy. One patient was not operated because of an unrelated coagulation disorder. The ex vivo magnetic activity of all lymph nodes (LNs) removed was measured. The detection rate, rate of in vivo detected SLNs, and sensitivity of sPLND was established. RESULTS No adverse events attributable to SPIOs injection were observed. Identified 126 SLNs (median 7, IQR 4-9) and resected 334 LNs (median 17, IQR 14-19); 37 % (7/19) of the patients had LN metastases (median 1, IQR 1-3.5). The detection rate and rate of in vivo detected SLNs were 90 % (17/19) and 94 % (118/126) respectively. Using sPLND, all LN metastases were detected (15/15, sensitivity 100 %) in all patients identified with SLNs. One LN + patient showed no SLNs following transurethral prostate resection. CONCLUSIONS This is the first study using a magnetic tracer and magnetometer to detect SLNs in PC. Initial data indicate that this simple, radiation-free procedure is safe, feasible, and reliably identifies SLN and LN metastases in most patients.
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Affiliation(s)
- Alexander Winter
- University Hospital for Urology, Klinikum Oldenburg, School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, Rahel-Straus-Str. 10, 26133, Oldenburg, Germany,
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Abstract
Recent developments and improvements of multimodal imaging methods for use in animal research have substantially strengthened the options of in vivo visualization of cancer-related processes over time. Moreover, technological developments in probe synthesis and labelling have resulted in imaging probes with the potential for basic research, as well as for translational and clinical applications. In addition, more sophisticated cancer models are available to address cancer-related research questions. This Review gives an overview of developments in these three fields, with a focus on imaging approaches in animal cancer models and how these can help the translation of new therapies into the clinic.
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Affiliation(s)
- Marion de Jong
- Departments of Nuclear Medicine and Radiology, Erasmus MC Rotterdam, Room Na-610, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
| | - Jeroen Essers
- Departments of Genetics (Cancer Genomics Centre), Radiation Oncology and Vascular Surgery, Erasmus MC Rotterdam, P.O Box 2040, 3000CA Rotterdam, The Netherlands
| | - Wytske M van Weerden
- Department of Urology, Erasmus MC Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
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Fluorescence Guidance During Radical Prostatectomy. Eur Urol 2014; 65:1169-70. [DOI: 10.1016/j.eururo.2013.12.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Accepted: 12/20/2013] [Indexed: 11/21/2022]
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Current Perspectives in the Use of Molecular Imaging To Target Surgical Treatments for Genitourinary Cancers. Eur Urol 2014; 65:947-64. [DOI: 10.1016/j.eururo.2013.07.033] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 07/17/2013] [Indexed: 01/17/2023]
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Brouwer OR, van den Berg NS, Mathéron HM, van der Poel HG, van Rhijn BW, Bex A, van Tinteren H, Valdés Olmos RA, van Leeuwen FWB, Horenblas S. A hybrid radioactive and fluorescent tracer for sentinel node biopsy in penile carcinoma as a potential replacement for blue dye. Eur Urol 2013; 65:600-9. [PMID: 24355132 DOI: 10.1016/j.eururo.2013.11.014] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 11/08/2013] [Indexed: 12/14/2022]
Abstract
BACKGROUND Sentinel node (SN) biopsy in penile cancer is typically performed using a combination of radiocolloid and blue dye. Recently, the hybrid radioactive and fluorescent tracer indocyanine green (ICG)-(99m)Tc-nanocolloid was developed to combine the beneficial properties of both radio-guidance and fluorescence imaging. OBJECTIVE To explore the added value of SN biopsy using ICG-(99m)Tc-nanocolloid in patients with penile carcinoma. DESIGN, SETTING, AND PARTICIPANTS Sixty-five patients with penile squamous cell carcinoma were prospectively included (January 2011 to December 2012). Preoperative SN mapping was performed using lymphoscintigraphy and single-proton emission computed tomography supplemented with computed tomography (SPECT/CT) after peritumoural injection of ICG-(99m)Tc-nanocolloid. During surgery, SNs were initially approached using a gamma probe, followed by patent blue dye and/or fluorescence imaging. A portable gamma camera was used to confirm excision of all SNs. SURGICAL PROCEDURE Patients underwent SN biopsy of the cN0 groin and treatment of the primary tumour. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The number and location of preoperatively identified SNs were documented. Intraoperative SN identification rates using radio- and/or fluorescence guidance were assessed and compared with blue dye. Statistical evaluation was performed using a two-sample test for equality of proportions with continuity correction. RESULTS AND LIMITATIONS Preoperative imaging after injection of ICG-(99m)Tc-nanocolloid enabled SN identification in all patients (a total of 183 SNs dispersed over 119 groins). Intraoperatively, all SNs identified by preoperative SN mapping were localised using combined radio-, fluorescence-, and blue dye guidance. Fluorescence imaging enabled visualisation of 96.8% of SNs, while only 55.7% was stained by blue dye (p<0.0001). The tissue penetration of the fluorescent signal, and the rapid flow of blue dye limited the detection sensitivity. A tumour-positive SN was found in seven patients. CONCLUSIONS ICG-(99m)Tc-nanocolloid allows for both preoperative SN mapping and combined radio- and fluorescence-guided SN biopsy in penile carcinoma patients and significantly improves optical SN detection compared with blue dye.
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Affiliation(s)
- Oscar R Brouwer
- Department of Nuclear Medicine, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands; Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands.
| | - Nynke S van den Berg
- Department of Nuclear Medicine, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands; Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
| | - Hanna M Mathéron
- Department of Nuclear Medicine, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands; Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
| | - Henk G van der Poel
- Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Bas W van Rhijn
- Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Axel Bex
- Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Harm van Tinteren
- Department of Biostatistics, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Renato A Valdés Olmos
- Department of Nuclear Medicine, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands; Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
| | - Fijs W B van Leeuwen
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands; Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Simon Horenblas
- Department of Urology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
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Chin PTK, Welling MM, Meskers SCJ, Valdes Olmos RA, Tanke H, van Leeuwen FWB. Optical imaging as an expansion of nuclear medicine: Cerenkov-based luminescence vs fluorescence-based luminescence. Eur J Nucl Med Mol Imaging 2013; 40:1283-91. [PMID: 23674205 DOI: 10.1007/s00259-013-2408-9] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 03/21/2013] [Indexed: 01/01/2023]
Abstract
Integration of optical imaging technologies can further strengthen the field of radioguided surgery. Rather than using two separate chemical entities to achieve this extension, hybrid imaging agents can be used that contain both radionuclear and optical properties. Two types of such hybrid imaging agents are available: (1) hybrid imaging agents generated by Cerenkov luminescence imaging (CLI) of β-emitters and (2) hybrid imaging agents that contain both a radioactive moiety and a fluorescent dye. One major challenge clinicians are now facing is to determine the potential value of these approaches. With this tutorial review we intend to clarify the differences between the two approaches and highlight the clinical potential of hybrid imaging during image-guided surgery applications.
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Affiliation(s)
- Patrick T K Chin
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
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Rietbergen DDD, van den Berg NS, van Leeuwen FWB, Valdés Olmos RA. Hybrid techniques for intraoperative sentinel lymph node imaging: early experiences and future prospects. ACTA ACUST UNITED AC 2013. [DOI: 10.2217/iim.13.16] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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van den Berg NS, Valdés-Olmos RA, van der Poel HG, van Leeuwen FW. Sentinel Lymph Node Biopsy for Prostate Cancer: A Hybrid Approach. J Nucl Med 2013; 54:493-6. [DOI: 10.2967/jnumed.112.113746] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Buckle T, Kuil J, van den Berg NS, Bunschoten A, Lamb HJ, Yuan H, Josephson L, Jonkers J, Borowsky AD, van Leeuwen FWB. Use of a single hybrid imaging agent for integration of target validation with in vivo and ex vivo imaging of mouse tumor lesions resembling human DCIS. PLoS One 2013; 8:e48324. [PMID: 23326303 PMCID: PMC3543428 DOI: 10.1371/journal.pone.0048324] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 09/24/2012] [Indexed: 12/11/2022] Open
Abstract
Screening of biomarker expression levels in tumor biopsy samples not only provides an assessment of prognostic and predictive factors, but may also be used for selection of biomarker-specific imaging strategies. To assess the feasibility of using a biopsy specimen for a personalized selection of an imaging agent, the chemokine receptor 4 (CXCR4) was used as a reference biomarker.
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MESH Headings
- Animals
- Carcinoma, Intraductal, Noninfiltrating/diagnosis
- Carcinoma, Intraductal, Noninfiltrating/metabolism
- Cell Line, Tumor
- Diagnosis, Differential
- Diagnostic Imaging/methods
- Feasibility Studies
- Flow Cytometry
- Fluorescent Dyes/chemistry
- Fluorescent Dyes/metabolism
- Humans
- Immunohistochemistry
- Mammary Neoplasms, Experimental/diagnosis
- Mammary Neoplasms, Experimental/metabolism
- Mice
- Molecular Structure
- Peptides/chemistry
- Peptides/metabolism
- Receptors, CXCR4/metabolism
- Reproducibility of Results
- Sensitivity and Specificity
- Tomography, Emission-Computed, Single-Photon
- Tomography, X-Ray Computed
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Affiliation(s)
- Tessa Buckle
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
- Departments of Radiology and Nuclear Medicine, Netherlands Cancer Institute- Antoni van Leeuwenhoekhuis, Amsterdam, The Netherlands
| | - Joeri Kuil
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
- Departments of Radiology and Nuclear Medicine, Netherlands Cancer Institute- Antoni van Leeuwenhoekhuis, Amsterdam, The Netherlands
| | - Nynke S. van den Berg
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
- Departments of Radiology and Nuclear Medicine, Netherlands Cancer Institute- Antoni van Leeuwenhoekhuis, Amsterdam, The Netherlands
| | - Anton Bunschoten
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
- Departments of Radiology and Nuclear Medicine, Netherlands Cancer Institute- Antoni van Leeuwenhoekhuis, Amsterdam, The Netherlands
| | - Hildo J. Lamb
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Hushan Yuan
- Center for Molecular Imaging Research, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts, United States
| | - Lee Josephson
- Center for Molecular Imaging Research, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts, United States
| | - Jos Jonkers
- Division of Cell Biology, Netherlands Cancer Institute–Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Alexander D. Borowsky
- Department of Pathology and Laboratory Medicine, Center for Comparative Medicine, School of Medicine, University of California at Davis, Sacramento, California, United States of America
| | - Fijs W. B. van Leeuwen
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
- Departments of Radiology and Nuclear Medicine, Netherlands Cancer Institute- Antoni van Leeuwenhoekhuis, Amsterdam, The Netherlands
- * E-mail:
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van der Poel HG, Buckle T, Valdes Olmos R. Re: Steven Joniau, Laura Van den Bergh, Evelyne Lerut, et al. Mapping of pelvic lymph node metastases in prostate cancer. Eur Urol. In press. http://dx.doi.org/10.1016/j.eururo.2012.06.057. Eur Urol 2012; 63:e20. [PMID: 23153744 DOI: 10.1016/j.eururo.2012.10.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Accepted: 10/28/2012] [Indexed: 10/27/2022]
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Brouwer OR, Buckle T, Vermeeren L, Klop WMC, Balm AJM, van der Poel HG, van Rhijn BW, Horenblas S, Nieweg OE, van Leeuwen FWB, Valdés Olmos RA. Comparing the hybrid fluorescent-radioactive tracer indocyanine green-99mTc-nanocolloid with 99mTc-nanocolloid for sentinel node identification: a validation study using lymphoscintigraphy and SPECT/CT. J Nucl Med 2012; 53:1034-40. [PMID: 22645297 DOI: 10.2967/jnumed.112.103127] [Citation(s) in RCA: 159] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
UNLABELLED The purpose of this study was to compare the lymphoscintigraphic drainage patterns of a hybrid sentinel node tracer consisting of the fluorescent dye indocyanine green (ICG) and (99m)Tc-nanocolloid with the drainage pattern of (99m)Tc-nanocolloid alone, the current standard tracer in many European countries. METHODS Twenty-five patients with a melanoma in the head and neck region (n = 10), a melanoma on the trunk (n = 6), or penile carcinoma (n = 9) who were scheduled for sentinel node biopsy were prospectively included. First, the standard (99m)Tc-nanocolloid procedure was performed. After injection at the lesion site, lymphoscintigraphy was performed with a 10-min dynamic study and static planar images at 10 min and 2 h after injection, followed by SPECT/CT. The same scintigraphic procedure was repeated after injection of hybrid ICG-(99m)Tc-nanocolloid the same afternoon in 10 patients or the next morning in 15 patients. The paired images of both injections were evaluated, and count rates in the sentinel nodes were calculated and compared. Sentinel nodes were surgically localized using blue dye, a γ-ray detection probe, a portable γ-camera, and a fluorescence camera. RESULTS Lymphatic drainage was visualized in all 25 patients using (99m)Tc-nanocolloid, leading to the identification of 66 sentinel nodes in total. These same sentinel nodes were also identified during the second scintigraphic procedure with ICG-(99m)Tc-nanocolloid. Moreover, a high correlation between the radioactive counting rates in the sentinel nodes of both scintigraphic studies was observed (mean R(2) = 0.83). Intraoperatively (4-23 h after the second injection), all preoperatively identified sentinel nodes could be localized using radio- and fluorescence guidance combined. In total, 95% of the sentinel nodes could be intraoperatively visualized by means of fluorescence imaging, whereas merely 54% stained blue. Ex vivo, all radioactive sentinel nodes were fluorescent and vice versa. No adverse reactions were observed. CONCLUSION The lymphatic drainage pattern of ICG-(99m)Tc-nanocolloid is identical to that of (99m)Tc-nanocolloid. This observation, together with the added value of intraoperative fluorescence guidance, warrants wider evaluation of hybrid ICG-(99m)Tc-nanocolloid as a tracer for sentinel node procedures.
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Affiliation(s)
- Oscar R Brouwer
- Department of Nuclear Medicine, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
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Bunschoten A, Buckle T, Visser NL, Kuil J, Yuan H, Josephson L, Vahrmeijer AL, van Leeuwen FWB. Multimodal interventional molecular imaging of tumor margins and distant metastases by targeting αvβ3 integrin. Chembiochem 2012; 13:1039-45. [PMID: 22505018 DOI: 10.1002/cbic.201200034] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Indexed: 12/20/2022]
Abstract
α(v)β(3) integrin is involved in (tumor-induced) angiogenesis and is a promising candidate for the specific visualization of both primary tumors and of their distant metastases. Combination of radioactive and fluorescent imaging labels in a single multimodal, or rather hybrid, RGD-based imaging agent enables integration of pre-, intra-, and postoperative angiogenesis imaging. A hybrid imaging agent targeting the α(v)β(3) integrin--(111)In-MSAP-RGD (MSAP = multifunctional single-attachment-point reagent), which contains a targeting moiety, a pentetic acid (DTPA) chelate, and a cyanine dye--was evaluated for its potential value in combined lesion detection and interventional molecular imaging in a 4T1 mouse breast cancer model. SPECT/CT and fluorescence imaging were used to visualize the tumor in vivo. Tracer distribution was evaluated ex vivo down to the microscopic level. The properties of (111)In-MSAP-RGD were compared with those of (111)In-DTPA-RGD. Biodistribution studies revealed a prolonged retention and increased tumor accumulation of (111)In-MSAP-RGD relative to (111)In-DTPA-RGD. With (111)In-MSAP-RGD, identical features could be visualized preoperatively (SPECT/CT) and intraoperatively (fluorescence imaging). As well as the primary tumor, (111)In-MSAP-RGD also enabled detection and accurate excision of distant metastases in the head and neck region of the mice. Therefore, the hybrid RGD derivative (111)In-MSAP-RGD shows potential in preoperative planning and fluorescence-based surgical intervention.
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Affiliation(s)
- Anton Bunschoten
- Interventional Molecular Imaging, Department of Radiology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands
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