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Oblak ML, Lu HY, Ram AS, McKenna C. Comparative aspects of targeted sentinel lymph node mapping in veterinary and human medicine: opportunities for future research. Front Med (Lausanne) 2024; 11:1342456. [PMID: 38633313 PMCID: PMC11021648 DOI: 10.3389/fmed.2024.1342456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/29/2024] [Indexed: 04/19/2024] Open
Abstract
There is a significant overlap in the genetic, metabolic and epigenetic alterations between human and companion animal cancers, including those of the oral cavity, breast, bladder, skin, lungs and pancreas. In many cancer types, the identification and removal of affected lymph nodes are essential for accurate cancer management, including treatment and prognosis. Historically, lymphadenectomy and subsequent radical resection based on regional anatomy, palpation and lymph node aspirates were considered sufficient; however, modern approaches with sentinel lymph node mapping (SLN) mapping have increased the accuracy of surgical decision-making. Preoperative and intraoperative SLN mapping techniques in veterinary patients parallel those used in human medicine. While many of these techniques are highly successful, the main challenges with current methodologies are their sensitivity and specificity for the presence of cancer, which can be overcome via precision medicine and targeted SLN mapping agents. Given the large population of dogs and cats with cancer, the crossover of knowledge between species can help to deepen our understanding of many of these cancers and can be useful in evaluating new drugs and/or therapies. In this review, we discuss SLN mapping techniques in veterinary medicine and the concept of precision medicine as it relates to targeted SLN mapping imaging agents. The large number of companion animals affected by cancer is an underutilized resource to bridge the translational gap and we aim to provide a reference for the use of dogs and cats as a comparative model for human SLN mapping.
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Affiliation(s)
- Michelle L. Oblak
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Hui Yu Lu
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Ann S. Ram
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Charly McKenna
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
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Griffin LR, Frank C, Rao S, Seguin B. Lymphotropic nanoparticle magnetic resonance imaging for diagnosing metastatic lymph nodes in dogs with malignant head and neck tumours. Vet Comp Oncol 2023; 21:427-436. [PMID: 37186437 DOI: 10.1111/vco.12901] [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: 06/02/2022] [Revised: 03/20/2023] [Accepted: 04/11/2023] [Indexed: 05/17/2023]
Abstract
Lymphotropic nanoparticle magnetic resonance imaging (LNMRI) utilises ultrasmall paramagnetic iron nanoparticles (USPIOs) for imaging of metastatic lymph nodes in patients afflicted with cancer. LNMRI has been shown to be a highly effective and accurate way to diagnose metastasis in humans but has not been commonly reported on in veterinary medicine. USPIOs are phagocytised by macrophages and then localised to lymph nodes where they create a susceptibility artefact on gradient echo MRI sequences. In this study dogs (n = 24) with naturally occurring head and neck tumours were imaged with LNMRI then had mandibular and retropharyngeal lymph nodes extirpated for histological analysis. Subjective and objective analysis of the LNMRI images was performed and imaging results compared to histology as the gold standard. A total of 149 lymph nodes were included in this study. The overall sensitivity, specificity and accuracy was 64%, 94.4% and 89.3% respectively. However, if dogs with mast cell tumours were excluded from analysis the sensitivity, specificity and accuracy rose to 85.7%, 95.7% and 94.6%. LNMRI is potentially an accurate way to determine the presence of lymph node metastasis in dogs with some types of head and neck tumours. However, LNMRI has only moderate accuracy in dogs with oral or mucocutaneous mast cell tumours in this region.
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Affiliation(s)
- Lynn R Griffin
- Environmental and Radiological Health Science Department, Colorado State Univeristy, Fort Collins, Colorado, USA
| | - Chad Frank
- Microbiology, Immunology and Pathology Department, Colorado State University, Fort Collins, Colorado, USA
| | - Sangeeta Rao
- Animal Population Health Institute and Clinical Sciences Department, Colorado State University, Veterinary Teaching Hospital, Fort Collins, Colorado, USA
| | - Bernard Seguin
- Clinical Sciences Department and Flint Animal Cancer Center, Colorado State University, Veterinary Teaching Hospital, Fort Collins, Colorado, USA
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Alvarez-Sanchez A, Townsend KL, Newsom L, Milovancev M, Gorman E, Russell DS. Comparison of indirect computed tomographic lymphography and near-infrared fluorescence sentinel lymph node mapping for integumentary canine mast cell tumors. Vet Surg 2023; 52:416-427. [PMID: 36574349 DOI: 10.1111/vsu.13929] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 11/18/2022] [Accepted: 12/03/2022] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To compare the independent and combined use of indirect computed tomographic lymphography (ICTL) and near-infrared fluorescence (NIRF) for sentinel lymph node (SLN) mapping in dogs with integumentary mast cell tumors (MCT) and report the metastatic LN rate. STUDY DESIGN Prospective clinical study. ANIMALS Twenty client-owned dogs. METHODS Dogs underwent preoperative ICTL, then intraoperative NIRF SLN mapping and excision of the anatomic lymph node (ALN) and/or SLN, and primary MCT. Technique agreement was complete if the same SLN was detected, and partial if the same SLN was detected along with additional SLN. No agreement occurred if the techniques detected different or no SLN. MCT were graded using two- and three-tier schemes, and LN were graded from HN0-3; HN2-3 were considered metastatic. RESULTS Complete, partial, and no agreement between ICTL and NIRF was seen in 8/20 (40%), 8/20 (40%), and 4/20 (20%) dogs, respectively. Detection of ICTL-SLN and NIRF-SLN failed in 1/20 (5%) and 4/20 (20%), respectively. Tumors were grade II/low-grade in 19/20 (95%) and grade III/high-grade in 1/20 (5%) dogs. Nineteen out of 20 (95%) dogs had HN2-3 LN. CONCLUSIONS Technique agreement of at least one SLN was seen in 16/20 (80%) dogs. Although most MCT were classified as intermediate to low grade, LN metastases were commonly detected. CLINICAL SIGNIFICANCE Combining ICTL and NIRF for MCT SLN mapping yields high SLN detection rates. Lymph node metastasis may be more common than previously reported for intermediate to low grade MCT.
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Affiliation(s)
- Alejandro Alvarez-Sanchez
- Department of Clinical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA
| | - Katy L Townsend
- Department of Clinical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA
| | - Lauren Newsom
- Department of Clinical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA
| | - Milan Milovancev
- Department of Clinical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA
- Summit Veterinary Referral Center, Tacoma, Washington, USA
| | - Elena Gorman
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA
| | - Duncan S Russell
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA
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Barbagianni MS, Gouletsou PG. Modern Imaging Techniques in the Study and Disease Diagnosis of the Mammary Glands of Animals. Vet Sci 2023; 10:vetsci10020083. [PMID: 36851387 PMCID: PMC9965774 DOI: 10.3390/vetsci10020083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/12/2023] [Accepted: 01/20/2023] [Indexed: 01/25/2023] Open
Abstract
The study of the structure and function of the animals' mammary glands is of key importance, as it reveals pathological processes at their onset, thus contributing to their immediate treatment. The most frequently studied mammary diseases are mastitis in cows and ewes and mammary tumours in dogs and cats. Various imaging techniques such as computed tomography, positron emission tomography, magnetic resonance imaging, and ultrasonographic techniques (Doppler, contrast-enchanced, three-dimensional and elastography) are available and can be applied in research or clinical practice in order to evaluate possible abnormalities in mammary glands, as well as to assist in the differential diagnosis. In this review, the above imaging technologies are described, and the perspectives of each method are highlighted. It is inferred that ultrasonographic modalities are the most frequently used imaging techniques for the diagnosis of clinical or subclinical mastitis and treatment guidance on a farm. In companion animals, a combination of imaging techniques should be applied for a more accurate diagnosis of mammary tumours. In any case, the confirmation of the diagnosis is provided by laboratory techniques.
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Chiti LE, Husi B, Park B, Beer P, D'Orchymont F, Holland JP, Nolff MC. Performance of two clinical fluorescence imaging systems with different targeted and non-targeted near-infrared fluorophores: a cadaveric explorative study. Front Vet Sci 2023; 10:1091842. [PMID: 37138917 PMCID: PMC10149874 DOI: 10.3389/fvets.2023.1091842] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 03/27/2023] [Indexed: 05/05/2023] Open
Abstract
Introduction Near-infrared (NIR) fluorescence-guided surgery is increasingly utilized in humans and pets. As clinical imaging systems are optimized for Indocyanine green (ICG) detection, the usage of targeted dyes necessitates the validation of these systems for each dye. We investigated the impact of skin pigmentation and tissue overlay on the sensitivity of two NIR cameras (IC-FlowTM, VisionsenseTM VS3 Iridum) for the detection of non-targeted (ICG, IRDye800) and targeted (AngiostampTM, FAP-Cyan) NIR fluorophores in an ex vivo big animal model. Methods We quantitatively measured the limit of detection (LOD) and signal-to-background ratio (SBR) and implemented a semi-quantitative visual score to account for subjective interpretation of images by the surgeon. Results VisionsenseTM VS3 Iridum outperformed IC-FlowTM in terms of LOD and SBR for the detection of all dyes except FAP-Cyan. Median SBR was negatively affected by skin pigmentation and tissue overlay with both camera systems. Level of agreement between quantitative and semi-quantitative visual score and interobserver agreement were better with VisionsenseTM VS3 Iridum. Conclusion The overlay of different tissue types and skin pigmentation may negatively affect the ability of the two tested camera systems to identify nanomolar concentrations of targeted-fluorescent dyes and should be considered when planning surgical applications.
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Affiliation(s)
- Lavinia E. Chiti
- Klinik für Kleintierchirurgie, Vetsuisse-Fakultät, University of Zurich, Zurich, Switzerland
- *Correspondence: Lavinia E. Chiti
| | - Benjamin Husi
- Klinik für Kleintierchirurgie, Vetsuisse-Fakultät, University of Zurich, Zurich, Switzerland
| | - Brian Park
- Klinik für Kleintierchirurgie, Vetsuisse-Fakultät, University of Zurich, Zurich, Switzerland
| | - Patricia Beer
- Klinik für Kleintierchirurgie, Vetsuisse-Fakultät, University of Zurich, Zurich, Switzerland
| | | | - Jason P. Holland
- Department of Chemistry, University of Zurich, Zurich, Switzerland
| | - Mirja C. Nolff
- Klinik für Kleintierchirurgie, Vetsuisse-Fakultät, University of Zurich, Zurich, Switzerland
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Beer P, Rohrer-Bley C, Nolff MC. Near-infrared fluorescent image-guided lymph node dissection compared with locoregional lymphadenectomies in dogs with mast cell tumours. J Small Anim Pract 2022; 63:670-678. [PMID: 35815663 PMCID: PMC9542114 DOI: 10.1111/jsap.13529] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 03/03/2022] [Accepted: 05/25/2022] [Indexed: 12/21/2022]
Abstract
Objectives Near‐infrared fluorescent imaging has been described for intraoperative mapping of the draining lymph nodes in human cancer and canine oral tumours. The aim of this study was to retrospectively describe the results of lymphadenectomies in dogs with mast cell tumours treated either by standard unguided locoregional lymph node dissection or near‐infrared fluorescent image‐guided lymph node dissection. Methods Medical records between 2012 and 2020 were reviewed for dogs that were presented for surgical resection of mast cell tumours with concurrent lymphadenectomy either with (near‐infrared fluorescent image‐guided lymph node dissection) or without near‐infrared fluorescence image guidance (lymph node dissection). The number and location of lymph nodes planned for surgical dissection and actually dissected nodes, presence of metastases and perioperative complications were recorded. Results Thirty‐five patients underwent near‐infrared fluorescent image‐guided lymph node dissection, and 43 lymph node dissections. The number of nodes preoperatively planned for resection were 70 and 68, respectively. Fifty‐eight of those (83%) were identified during near‐infrared fluorescent image‐guided lymph node dissection procedures, compared with 50 (74%) during lymph node dissection. near‐infrared fluorescent image‐guided lymph node dissection resulted in resection of additional fluorescent nodes not corresponding to locoregional nodes in 15 of 35 dogs. Using near‐infrared fluorescent image‐guided lymph node dissection, we identified at least one metastatic node in 68% of dogs (24 of 35) compared with 33% (14 of 43) when lymph node dissection was used without imaging. No complications related to near‐infrared fluorescent imaging were reported. Clinical Significance The present study suggests that near‐infrared imaging is a promising technique for intraoperative detection of the draining lymph nodes in dogs with mast cell tumours. Further validation of the technique is required to assess if near‐infrared fluorescent imaging can detect the true sentinel lymph node.
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Affiliation(s)
- P Beer
- Vetsuisse Faculty, Clinic for Small Animal Surgery, University of Zurich, Zurich, 8057, Switzerland
| | - C Rohrer-Bley
- Division of Radiation Oncology, Vetsuisse Faculty, University of Zurich, Zurich, 8057, Switzerland
| | - M C Nolff
- Vetsuisse Faculty, Clinic for Small Animal Surgery, University of Zurich, Zurich, 8057, Switzerland
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Arz R, Seehusen F, Meier VS, Nolff MC. Indocyanine-based near-infrared lymphography for real-time detection of lymphatics in a cat with multiple mast cell tumours. JFMS Open Rep 2022; 8:20551169221074961. [PMID: 35251677 PMCID: PMC8891856 DOI: 10.1177/20551169221074961] [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] [Indexed: 11/23/2022] Open
Abstract
Case summary An 11-year-old female domestic shorthair cat was presented with cutaneous mast cell tumours (MCTs) localised at the right temporal region, the left buccal region and on the third digit of the right thoracic limb. Staging was negative and locoregional lymph nodes appeared normal, based on clinical findings. During surgery, real-time indocyanine green (ICG)-based lymphography was performed to detect the cutaneous draining pattern of all the primary MCTs. ICG was injected intracutaneously in four quadrants around each tumour, and a clear lymphogram was visible shortly after injection. Using near-infrared lymphography (NIR-L) for guidance, all lymphadenectomies were performed in 12 mins or less, with a maximal incision length of 3.5 cm. The smallest resected node was 0.9 cm in diameter. All MCTs were classified as low-grade cutaneous MCT. All four ICG-positive lymph nodes were considered premetastatic or metastatic. The only ICG-negative resected node was also negative for tumour cells. No complications related to NIR-L were recorded. Relevance and novel information This is the first description of NIR-L in a cat with MCT. Application was straightforward and ICG enrichment only occurred in the metastatic nodes, suggesting correct identification of lymphatic draining patterns. Of note, as previously described in dogs, we did detect nodal metastasis, despite low-grade primary tumours. The clinical relevance should be evaluated in future studies.
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Affiliation(s)
- Raphael Arz
- Clinic for Small Animal Surgery, Department for Small Animals, Vetsuisse Faculty, University of Zurich, Switzerland
| | - Frauke Seehusen
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Switzerland
| | - Valeria S Meier
- Clinic for Oncology and Radiation Oncology, Department for Small Animals, Vetsuisse Faculty, University of Zurich, Switzerland
- Department of Physics, University of Zurich, Switzerland
| | - Mirja C Nolff
- Clinic for Small Animal Surgery, Department for Small Animals, Vetsuisse Faculty, University of Zurich, Switzerland
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Buote NJ. Updates in Laparoscopy. Vet Clin North Am Small Anim Pract 2022; 52:513-529. [DOI: 10.1016/j.cvsm.2021.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Differential detection of metastatic and inflammatory lymph nodes using inflow-based vascular-space-occupancy (iVASO) MR imaging. Magn Reson Imaging 2021; 85:128-132. [PMID: 34687849 DOI: 10.1016/j.mri.2021.10.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 08/31/2021] [Accepted: 10/17/2021] [Indexed: 12/19/2022]
Abstract
PURPOSE To investigate the potential value of inflow-based vascular-space-occupancy (iVASO) MR imaging in differentiating metastatic from inflammatory lymph nodes (LNs). METHODS Ten female New Zealand rabbits with 2.5-3.0 kg body weight were studied. VX2 cells and egg yolk emulsion were inoculated into left and right thighs, respectively, to induce ten metastatic and ten inflammatory popliteal LNs. Conventional MRI and iVASO were performed 2 h prior to, and 10, 20 days after inoculation (D0, D10, D20). The short-axis diameter (S), short- to long-axis diameter ratio (SLR), and arteriolar blood volume (BVa) at each time point and their longitudinal changes of each model were recorded and compared. At D20, all rabbits were sacrificed to perform histological evaluation after the MR scan. RESULTS The mean values of S, SLR and BVa showed no significant difference between the two groups at D0 (P = 0.987, P = 0.778, P = 0.975). The BVa of the metastatic group was greater than that of the inflammatory at both D10 and D20 (P < 0.05; P < 0.001), whereas the S and SLR of the metastatic group were greater only at D20 (P < 0.001; P = 0.001). Longitudinal analyses showed that the BVa of the metastatic group increased at both D10 and D20 (P = 0.004; P = 0.001), while that of the inflammatory group only increased at D10 (P = 0.024). CONCLUSION The BVa measured with iVASO has the potential to detect early metastatic LNs.
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Wan J, Oblak ML, Ram AS, McKenna C, Singh A, Nykamp S. Evaluating the Feasibility and Efficacy of a Dual-Modality Nanoparticle Contrast Agent (Nanotrast-CF800) for Image-Guided Sentinel Lymph Node Mapping in the Oral Cavity of Healthy Dogs. Front Vet Sci 2021; 8:721003. [PMID: 34631851 PMCID: PMC8494771 DOI: 10.3389/fvets.2021.721003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 08/27/2021] [Indexed: 01/08/2023] Open
Abstract
A combination of pre and intraoperative sentinel lymph node (SLN) mapping techniques have been suggested to optimize SLN detection. A novel liposomal nanoparticle, Nanotrast-CF800 (CF800), utilizes computed tomography lymphography (CTL) and near infrared fluorescence imaging (NIRF) for image-guided surgery and SLN mapping. This novel tracer agent has not been evaluated in companion animals. The objective of this study was to evaluate the feasibility and efficacy of CF800 for SLN mapping in the oral cavity of healthy dogs and to report any local adverse effects. Six healthy adult purpose-bred research dogs randomly received either 1 mL (group 1) or 2 mL (group 2) of CF800 injected into the submucosa at the level of the right canine maxillary tooth. CTL and percutaneous NIRF were performed at 1, 3, and 10 min, then 1, 2, 4, 7, and 10 days post-injection (p.i). Overall, both CTL and NIRF identified SLNs in all dogs. The overall peak mean contrast enhancement of the SLNs was 73.98 HU (range 63.45-86.27 HU) at 2 days p.i. Peak fluorescence of the SLN occurred at 1 day p.i. The agent was retained within the SLN for at least 7 days for CTL and 4 days for percutaneous NIRF. No adverse effects were observed. Local administration of CF800 was simple and feasible for the detection of SLNs using CTL+NIRF in the head and neck of healthy dogs and was not associated with significant local adverse events.
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Affiliation(s)
- Jennifer Wan
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Michelle L. Oblak
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Ann S. Ram
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Charly McKenna
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Ameet Singh
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Stephanie Nykamp
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
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Ma S, Xu Y, Ling F. Preoperative evaluation and influencing factors of sentinel lymph node detection for early breast cancer with contrast-enhanced ultrasonography: What matters. Medicine (Baltimore) 2021; 100:e25183. [PMID: 33787600 PMCID: PMC8021290 DOI: 10.1097/md.0000000000025183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 02/25/2021] [Indexed: 01/04/2023] Open
Abstract
Sentinel lymph node (SLN) is important in the early diagnosis of breast cancer. We aimed to evaluate the role of contrast-enhanced ultrasonography (CEUS) in the preoperative evaluation for SLN and potentially influencing factors, to provide evidence to the management of breast cancer.Patients with breast cancer who treated in our hospital from May 2018 to May 2020 were selected. All patients underwent CEUS examination to find SLN and judged whether the lymph node had cancer metastasis. We evaluated the sensitivity, specificity, and accuracy of CEUS in predicting SLN, and its differences in pathological diagnosis results and related influencing factors were also analyzed.A total of 108 patients with breast cancer were included. And a total of 248 SLNs were detected. The sensitivity of CEUS to the preoperative evaluation of SLN was 84.67%, the specificity was 81.14%, the positive predictive value was 76.08%, and the negative predictive value was 89.27%, the positive likelihood ratio was 4.06, and the negative likelihood ratio was 0.14. The area under the curve of the preoperative evaluation of SLN in CEUS examination was 0.813 (95% confidence interval: 0.765-0.911), and there was significant difference in the size of SLNs between SLN-negative and SLN-positive groups (P = .043).Preoperative CEUS has good predictive value for the SLN detection in patients with breast cancer, and it is worthy of clinical application.
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Affiliation(s)
| | - Yuguang Xu
- Ultrasound Imaging Department, Zhongshan City People's Hospital, Guangdong Province, China
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Quinlan ASF, Wainberg SH, Phillips E, Oblak ML. The use of near infrared fluorescence imaging with indocyanine green for vascular visualization in caudal auricular flaps in two cats. Vet Surg 2021; 50:677-686. [PMID: 33491783 DOI: 10.1111/vsu.13577] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 11/15/2020] [Accepted: 12/13/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVES To describe the use of near infrared fluorescence (NIRF) imaging with indocyanine green (ICG) for vascular visualization in two caudal auricular axial pattern flaps (APF). ANIMALS Two client-owned cats with upper eyelid masses. STUDY DESIGN Clinical case report. METHODS Wide surgical excision with enucleation was performed by using a caudal auricular APF for closure. Flap margins and perforating artery location were approximated with anatomical landmarks. The caudal auricular artery origin was then visualized percutaneously by using an exoscope with NIRF camera and light source after a single 2.5-mg dose of IV ICG. Margins were adjusted as required. The flaps were routinely elevated with continued intraoperative visualization of the artery and rotated to complete closure. RESULTS After IV ICG administration, fluorescence was initially visualized after 15 to 18 seconds and remained visible for up to 26 minutes. The achieved visualization led to flap margin adjustments in cat 1. Both cats recovered with minimal flap congestion, excellent hair regrowth, and no long-term complications (>186 days). Cat 1 experienced 100% flap survival. Cat 2 experienced 10% partial thickness flap necrosis, but revision was not required, and the flap was healed at recheck 85 days postoperatively. CONCLUSION The use of ICG for APF vessel visualization prior to and during flap elevation resulted in transcutaneous visualization of the perforating vessel and improved awareness of vessel location intraoperatively. These two cats experienced excellent flap survival without major complications. This report highlights the potential benefits of ICG NIRF in APF for animals undergoing reconstructive surgery.
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Affiliation(s)
- Adam S F Quinlan
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Shannon H Wainberg
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada.,Companion Animal Hospital, Ontario Veterinary College Health Services Centre, Guelph, Ontario, Canada
| | - Erin Phillips
- Companion Animal Hospital, Ontario Veterinary College Health Services Centre, Guelph, Ontario, Canada
| | - Michelle L Oblak
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada.,Companion Animal Hospital, Ontario Veterinary College Health Services Centre, Guelph, Ontario, Canada
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Wan J, Oblak ML, Ram A, Singh A, Nykamp S. Determining agreement between preoperative computed tomography lymphography and indocyanine green near infrared fluorescence intraoperative imaging for sentinel lymph node mapping in dogs with oral tumours. Vet Comp Oncol 2021; 19:295-303. [PMID: 33403753 DOI: 10.1111/vco.12675] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/30/2020] [Accepted: 01/03/2021] [Indexed: 01/05/2023]
Abstract
Lymphatic drainage from the head and neck is variable with significant crossover, therefore sentinel lymph node (SLN) mapping can help ensure the appropriate lymph node(s) are sampled. To improve sensitivity, SLN mapping utilizing multiple modalities and a combination of preoperative computed tomography lymphography (CTL) and intraoperative near infrared fluorescence imaging (NIRF) with indocyanine green (ICG) +/- methylene blue (MB) dye has been suggested. The aim of this study was to describe a method for intraoperative ICG lymphography and determine agreement for SLN detection using preoperative CTL and intraoperative ICG NIRF + MB lymphography (IOL) in dogs with oral tumours. Fourteen client-owned dogs were included. All dogs had preoperative CTL with iodinated contrast and intraoperative IOL with an exoscope. Lymph nodes with CTL contrast-enhancement, blue staining or fluorescence were considered sentinel. The overall SLN identification rate was 100% when CTL and IOL were combined. A total of 57 SLNs were identified. Indocyanine green NIRF identified a greater proportion of SLNs (91%; 52/57) compared with MB (50.8%; 29/57) and CTL (42.1%; 24/57). Eighteen SLNs were identified by all three modalities with a fair level of agreement using Fleiss kappa. These findings suggest a combination of preoperative CTL with intraoperative SLN mapping techniques may greatly improve the ability to accurately detect the SLN in dogs with oral tumours.
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Affiliation(s)
- Jennifer Wan
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Michelle L Oblak
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Ann Ram
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Ameet Singh
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Stephanie Nykamp
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
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Stan F, Gudea A, Damian A, Gal AF, Papuc I, Pop AR, Martonos C. Ultrasonographic Algorithm for the Assessment of Sentinel Lymph Nodes That Drain the Mammary Carcinomas in Female Dogs. Animals (Basel) 2020; 10:E2366. [PMID: 33321917 PMCID: PMC7763578 DOI: 10.3390/ani10122366] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/02/2020] [Accepted: 12/04/2020] [Indexed: 12/14/2022] Open
Abstract
The status of sentinel lymph nodes (SLNs) is decisive in staging, prognosis, and therapeutic approach. Using an ultrasonographic examination algorithm composed of B-mode, Doppler technique, contrast-enhanced ultrasound (CEUS) and elastography, this study aimed to determine the diagnostic performance of the four techniques compared to histopathological examination. 96 SLNs belonging to 71 female dogs with mammary gland carcinomas were examined. After examinations, mastectomy and lymphadenectomy were performed. Histopathological examination confirmed the presence of metastases in 54 SLNs. The elasticity score had the highest accuracy-89.71%, identifying metastases in SLNs with 88.9.9% sensitivity (SE) and 90.5% specificity (SP), ROC analysis providing excellent results. The S/L (short axis/long axis) ratio showed 83.3% SE and 78.6% SP as a predictor of the presence of metastases in SLN having a good accuracy of 81.2%. On Doppler examination, the resistivity index(RI) showed good accuracy of 80% in characterizing lymph nodes with metastases versus unaffected ones; the same results being obtained by CEUS examination. By assigning to each ultrasonographic parameter a score (0 or 1) and summing up the scores of the four techniques, we obtained the best diagnostic performance in identifying lymph node metastases with 92.2% accuracy. In conclusion, the use of the presented algorithm provides the best identification of metastases in SLNs, helping in mammary carcinoma staging and appropriate therapeutic management.
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Affiliation(s)
- Florin Stan
- Department of Comparative Anatomy, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, 400372 Cluj Napoca, Romania; (A.G.); (A.D.); (C.M.)
| | - Alexandru Gudea
- Department of Comparative Anatomy, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, 400372 Cluj Napoca, Romania; (A.G.); (A.D.); (C.M.)
| | - Aurel Damian
- Department of Comparative Anatomy, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, 400372 Cluj Napoca, Romania; (A.G.); (A.D.); (C.M.)
| | - Adrian Florin Gal
- Department of Cell Biology, Histology and Embryology, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, 400372 Cluj Napoca, Romania;
| | - Ionel Papuc
- Department of Semiology and Medical Imaging, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, 400372 Cluj Napoca, Romania;
| | - Alexandru Raul Pop
- Department of Reproduction, Obstetrics and Reproductive Pathology, Biotechnologies in Reproduction, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, 400372 Cluj Napoca, Romania;
| | - Cristian Martonos
- Department of Comparative Anatomy, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, 400372 Cluj Napoca, Romania; (A.G.); (A.D.); (C.M.)
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15
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Hlusko KC, Cole R, Tillson DM, Boothe HW, Almond G, Coggeshall WS, Matz BM. Sentinel lymph node detection differs when comparing lymphoscintigraphy to lymphography using water soluble iodinated contrast medium and digital radiography in dogs. Vet Radiol Ultrasound 2020; 61:659-666. [PMID: 32929849 DOI: 10.1111/vru.12908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/23/2020] [Accepted: 06/29/2020] [Indexed: 01/24/2023] Open
Abstract
Sentinel lymph node (SLN) mapping by various means has become standard of care in certain types of human cancers and is receiving more attention in veterinary oncology. Current SLN mapping techniques can be costly and often require advanced imaging equipment. The objective of this prospective, method comparison study was to compare an SLN mapping protocol of lymphoscintigraphy to lymphography using water soluble iodinated contrast medium (WIC) and digital radiography for identification of an SLN. Lymphoscintigraphy and lymphography were performed on eight healthy purpose-bred dogs using technetium-99m sulfur colloid and WIC injected into the subcutaneous tissues in a four-quadrant technique around a predefined area of skin on the brachium. Images were obtained using a gamma camera and digital radiography at different time points post-injection. Image sequences were evaluated by one of two American College of Veterinary Radiology board-certified veterinary radiologists. Data obtained were compared between methods using descriptive statistics. An SLN was identified in all dogs with lymphoscintigraphy and seven of eight dogs with lymphography. Agreement between results of the lymphoscintigraphy and lymphography studies was a complete match in three dogs, a partial match in four dogs, and no match in one dog. The SLN detected differed based on the imaging modality used.
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Affiliation(s)
- Katelyn C Hlusko
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama, USA
| | - Robert Cole
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama, USA
| | - David Michael Tillson
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama, USA
| | - Harry W Boothe
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama, USA
| | - Greg Almond
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama, USA
| | | | - Brad M Matz
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama, USA
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16
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Fournier Q, Thierry F, Longo M, Malbon A, Cazzini P, Bisson J, Woods S, Liuti T, Bavcar S. Contrast-enhanced ultrasound for sentinel lymph node mapping in the routine staging of canine mast cell tumours: A feasibility study. Vet Comp Oncol 2020; 19:451-462. [PMID: 32840038 DOI: 10.1111/vco.12647] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/10/2020] [Accepted: 08/22/2020] [Indexed: 12/15/2022]
Abstract
Canine mast cell tumours (MCTs) typically spread to lymph nodes (LNs) before reaching distant sites, and LN assessment is an important part of MCT staging. Sentinel LN (SLN) mapping techniques to identify draining LNs are being developed and could improve the accuracy of MCT staging. The primary objective of this feasibility study was to determine the safety and effectiveness of contrast-enhanced ultrasound (CEUS) to identify SLNs. Secondary objectives were to determine if the SLNs identified by CEUS coincided with the regional LN predicted by the anatomical lymphosomes, if previous MCT excision altered CEUS SLN findings, and if CEUS could identify MCT nodal metastases. Between June 2017 and March 2019, 59 dogs with 62 MCTs were enrolled. No adverse events related to CEUS were reported. CEUS detected at least 1 SLN in 59/62 MCTs (95.2%, 95% CI: 86.5-99.0%). In only 32/59 (54.2%) MCTs, clinicians would have correctly predicted the SLN(s) identified by CEUS. Among the 35 MCTs that had histological examination of the SLN(s), the prevalence of metastasis was 60% (95% CI: 42.1-76.1%). Additional staging procedures did not reveal any metastases in dogs with histologically non-metastatic SLNs. Integration of CEUS SLN mapping into the routine staging of MCTs is promising, but future studies are required to refine this procedure and to investigate if it would translate into a clinical benefit.
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Affiliation(s)
- Quentin Fournier
- Department of Small Animal Teaching Hospital, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Florence Thierry
- Department of Small Animal Teaching Hospital, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Edinburgh, UK.,Occitanie Veterinary Hospital, Toulouse, France
| | - Maurizio Longo
- Department of Small Animal Teaching Hospital, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Edinburgh, UK.,Department of Veterinary Medicine, Veterinary Teaching Hospital, University of Milan, Lodi, Italy
| | - Alexandra Malbon
- Easter Bush Pathology, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Paola Cazzini
- Easter Bush Pathology, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Jocelyn Bisson
- Department of Small Animal Teaching Hospital, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Samantha Woods
- Department of Small Animal Teaching Hospital, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Edinburgh, UK.,Veterinary Specialists, Scotland, Livingston, Scotland
| | - Tiziana Liuti
- Department of Small Animal Teaching Hospital, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Spela Bavcar
- Department of Small Animal Teaching Hospital, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Edinburgh, UK
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17
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Hlusko KC, Cole R, Tillson DM, Boothe HW, Almond GT, Coggeshall WS, Matz BM. The effect of surgery on lymphoscintigraphy drainage patterns from the canine brachium in a simulated tumor model. Vet Surg 2020; 49:1118-1124. [PMID: 32584435 DOI: 10.1111/vsu.13473] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/08/2020] [Accepted: 05/14/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To determine the effect of surgery on lymphoscintigraphy drainage patterns from the canine brachium. STUDY DESIGN Experimental study. ANIMALS Eight healthy research beagles. METHODS A predefined area of skin measuring 2 × 1.5 cm in dimension was designated on either the right or left brachium. Preoperative lymphoscintigraphy was performed with technetium sulfur colloid injected into the subcutaneous tissues around the predefined anatomic location in a four-quadrant technique. Dogs underwent surgery for excision of the predefined area of skin, subcutis, and fascia of the lateral head of the triceps muscle with 1-cm margins. Eighteen days after surgery, lymphoscintigraphy was again performed with technetium sulfur colloid injected into the subcutaneous tissues around the surgical scar in a four-quadrant technique. RESULTS Sentinel lymph nodes were identified in eight of eight dogs preoperatively and in eight of eight dogs postoperatively. Agreement between the results of the preoperative and postoperative lymphoscintigraphy studies was identified as complete in four of eight dogs and partial in four of eight dogs. Sentinel lymph node identification occurred immediately in three of eight dogs preoperatively and in eight of eight dogs postoperatively. CONCLUSION Sentinel lymph node identification occurred faster postoperatively. Agreement or partial agreement between the results of the preoperative and postoperative lymphoscintigraphy studies was observed in eight of eight dogs. CLINICAL SIGNIFICANCE Surgery appears to have an effect on lymphoscintigraphy drainage patterns. Additional studies are required to compare preoperative and postoperative sentinel lymph node mapping patterns in tumor-bearing dogs. However, this study provides preliminary information regarding the effect of surgery on sentinel lymph node identification.
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Affiliation(s)
- Katelyn C Hlusko
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama
| | - Robert Cole
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama
| | - David Michael Tillson
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama
| | - Harry W Boothe
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama
| | - Greg T Almond
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama
| | | | - Brad M Matz
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama
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18
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Trikoupi G, Papadopoulou P, Papadopoulou F, Theodoridis A, Papazoglou L, Patsikas M. Contrast-enhanced voiding urosonography: A new, radiation-free, alternative method for imaging of urinary bladder and urethra in healthy dogs. Vet Radiol Ultrasound 2020; 61:453-460. [PMID: 32462691 DOI: 10.1111/vru.12867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 02/02/2020] [Accepted: 02/03/2020] [Indexed: 12/12/2022] Open
Abstract
Contrast-enhanced voiding urosonography (CE-VUS) has been generally considered as a promising tool to diagnose vesicoureteral reflux and abnormalities in lower urinary tract in human patients, especially in children. The purpose of this prospective study is to evaluate the quality of images of the urinary bladder and urethra obtained by CE-VUS using a second-generation ultrasound contrast agent (SonoVue®) in healthy dogs and to investigate the safety profile of SonoVue® after intravesical administration. Eighty-four CE-VUS examinations with SonoVue® were successfully performed in both unsedated (39/84) and sedated (45/84) dogs. Contrast-enhanced voiding urosonography examination of urinary bladder was technically successful in all (84/84) dogs. The image quality was not considered adequate in five (5/84) dogs including three dogs in whom layering of contrast media during filling phase was observed and two dogs with premature destruction of microbubbles. In these five dogs, the problem was readily recognized and corrected such that the procedure was still successfully undertaken. The assessment of the urethra during spontaneous micturition was successfully performed in all (84/84) dogs in whom voiding was elicited during the examination. No side effects were observed after intravesical application of SonoVue®. This study demonstrates that CE-VUS is a feasible and valuable technique to evaluate low urinary tract morphology and function in dogs. Based on our review of the literature, there are no published reports about the use of this method in dogs.
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Affiliation(s)
- Georgia Trikoupi
- School of Veterinary Medicine, Aristotle University of Thessaloniki, Stavrou Voutira, Thessaloniki, Greece
| | - Paraskevi Papadopoulou
- School of Veterinary Medicine, Aristotle University of Thessaloniki, Stavrou Voutira, Thessaloniki, Greece
| | | | - Alexandros Theodoridis
- School of Veterinary Medicine, Aristotle University of Thessaloniki, Stavrou Voutira, Thessaloniki, Greece
| | - Lysimachos Papazoglou
- School of Veterinary Medicine, Aristotle University of Thessaloniki, Stavrou Voutira, Thessaloniki, Greece
| | - Michael Patsikas
- School of Veterinary Medicine, Aristotle University of Thessaloniki, Stavrou Voutira, Thessaloniki, Greece
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19
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Favril S, Abma E, Stock E, Devriendt N, Van Goethem B, Blasi F, Brioschi C, Polis I, De Cock H, Miragoli L, Oliva P, Valbusa G, Vanderperren K, de Rooster H. Fluorescence-guided surgery using indocyanine green in dogs with superficial solid tumours. Vet Rec 2020; 187:273. [PMID: 32345608 DOI: 10.1136/vr.105554] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 04/01/2020] [Accepted: 04/05/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND Near-infrared fluorescence (NIRF) imaging is a relatively novel technique that can aid surgeons during intraoperative tumour identification. METHODS Nine canine oncology patients (five mammary gland tumours, three mast cell tumours and one melanoma) received intravenous indocyanine green (ICG). After 24 hours, tumours were resected and fluorescence intensities of tumours and surroundings were evaluated. Additional wound bed tissue was resected if residual fluorescence was present after tumour resection. Ex vivo, fluorescence-guided dissection was performed to separate tumour from surrounding tissue. RESULTS Intraoperative NIRF-guided tumour delineation was feasible in four out of nine dogs. Wound bed imaging after tumour removal identified nine additional fluorescent lesions, of which four contained tumour tissue. One of these four true positive in vivo lesions was missed by standard-of-care inspection. Ex vivo fluorescence-guided tumour dissection showed a sensitivity of 72 per cent and a specificity of 80 per cent in discriminating between tumour and surrounding tissue. CONCLUSION The value of ICG for intraoperative tumour delineation seems more limited than originally thought. Although NIRF imaging using ICG did identify remaining tumour tissue in the wound bed, a high false positive rate was also observed.
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Affiliation(s)
- Sophie Favril
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium .,Cancer Research Institute Ghent (CRIG), Medical Research Building, University Hospital, Ghent, Belgium
| | - Eline Abma
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.,Cancer Research Institute Ghent (CRIG), Medical Research Building, University Hospital, Ghent, Belgium
| | - Emmelie Stock
- Department of Veterinary Medical Imaging and Small Animal Orthopaedics, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Nausikaa Devriendt
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Bart Van Goethem
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | | | | | - Ingeborgh Polis
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | | | | | - Paolo Oliva
- Bracco Imaging SpA, Colleretto Giacosa, Italy
| | | | - Katrien Vanderperren
- Department of Veterinary Medical Imaging and Small Animal Orthopaedics, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Hilde de Rooster
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.,Cancer Research Institute Ghent (CRIG), Medical Research Building, University Hospital, Ghent, Belgium
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20
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Choi M, Yoon J, Choi M. Contrast-enhanced ultrasound sonography combined with strain elastography to evaluate mandibular lymph nodes in clinically healthy dogs and those with head and neck tumors. Vet J 2020; 257:105447. [PMID: 32546353 DOI: 10.1016/j.tvjl.2020.105447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 02/25/2020] [Accepted: 02/25/2020] [Indexed: 12/18/2022]
Abstract
Determining lymph node metastases in dogs with neoplasia is important in staging and developing a therapeutic plan. In this study, the clinical efficacy of combined lymphosonography and strain elastography was evaluated for its ability to identify metastatic mandibular lymph nodes. Data from clinically healthy dogs (n = 16) and those with head/neck tumors (n = 11) were enrolled. Strain elastographic patterns were classified according to the percentage of the stiffness lymph node area (grade 1-4/4). Lymphosonographic images were evaluated quantitatively (visualization of lymphatic vessels/lymph nodes; contrast transit time) and qualitatively (enhancement pattern). There was a significant difference in the strain elastographic pattern (P = 0.011) and lymphosonographic contrast enhancement (P = 0.001) in the metastatic nodes compared to clinical healthy or non-metastatic nodes. Mandibular lymph nodes with filling defects after lymphosonography and high-grade strain elastographic patterns suggested metastasis, and the combination of lymphosonography and strain elastography was useful for identifying malignancy.
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Affiliation(s)
- Mihyun Choi
- Haemaru Referral Animal Hospital, Seongnam, 13590, Republic of Korea; The Department of Veterinary Medical Imaging, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea
| | - Junghee Yoon
- The Department of Veterinary Medical Imaging, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea
| | - Mincheol Choi
- The Department of Veterinary Medical Imaging, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea.
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21
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Holt D, Singhal S, Selmic LE. Near-infrared imaging and optical coherence tomography for intraoperative visualization of tumors. Vet Surg 2020; 49:33-43. [PMID: 31609011 PMCID: PMC11059208 DOI: 10.1111/vsu.13332] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 08/30/2019] [Accepted: 09/09/2019] [Indexed: 12/14/2022]
Abstract
Surgical excision is the foundation of treatment for early-stage solid tumors in man and companion animals. Complete excision with appropriate margins of surrounding tumor-free tissue is crucial to survival. Intraoperative imaging allows real-time visualization of tumors, assessment of surgical margins, and, potentially, lymph nodes and satellite metastatic lesions, allowing surgeons to perform complete tumor resections while sparing surrounding vital anatomic structures. This Review will focus on the use of near-infrared imaging and optical coherence tomography for intraoperative tumor visualization.
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Affiliation(s)
- David Holt
- Department of Clinical Sciences and Advanced Medicine, University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania
| | - Sunil Singhal
- Department of Thoracic Surgery, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Laura E Selmic
- Department of Veterinary Clinical Sciences, The Ohio State University College of Veterinary Medicine, Columbus, Ohio
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22
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Derham AM, Kushnir A, Hoey S, Jahns H, Hollis AR, Kearney CM. Surgical treatment of a mandibular ameloblastic carcinoma with metastases to the mandibular lymph nodes in a pony. EQUINE VET EDUC 2019. [DOI: 10.1111/eve.13130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- A. M. Derham
- University College Dublin, University Veterinary Hospital, UCD Belfield, Dublin 4 Ireland
| | - A. Kushnir
- University College Dublin, University Veterinary Hospital, UCD Belfield, Dublin 4 Ireland
| | - S. Hoey
- University College Dublin, University Veterinary Hospital, UCD Belfield, Dublin 4 Ireland
| | - H. Jahns
- University College Dublin, University Veterinary Hospital, UCD Belfield, Dublin 4 Ireland
| | - A. R. Hollis
- Centre for Equine Studies Animal Health Trust Kentford, Newmarket Suffolk UK
| | - C. M. Kearney
- University College Dublin, University Veterinary Hospital, UCD Belfield, Dublin 4 Ireland
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