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Fuse Y, Takeuchi K, Hashimoto N, Nagata Y, Takagi Y, Nagatani T, Takeuchi I, Saito R. Deep learning based identification of pituitary adenoma on surgical endoscopic images: a pilot study. Neurosurg Rev 2023; 46:291. [PMID: 37910280 DOI: 10.1007/s10143-023-02196-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/21/2023] [Accepted: 10/22/2023] [Indexed: 11/03/2023]
Abstract
Accurate tumor identification during surgical excision is necessary for neurosurgeons to determine the extent of resection without damaging the surrounding tissues. No conventional technologies have achieved reliable performance for pituitary adenomas. This study proposes a deep learning approach using intraoperative endoscopic images to discriminate pituitary adenomas from non-tumorous tissue inside the sella turcica. Static images were extracted from 50 intraoperative videos of patients with pituitary adenomas. All patients underwent endoscopic transsphenoidal surgery with a 4 K ultrahigh-definition endoscope. The tumor and non-tumorous tissue within the sella turcica were delineated on static images. Using intraoperative images, we developed and validated deep learning models to identify tumorous tissue. Model performance was evaluated using a fivefold per-patient methodology. As a proof-of-concept, the model's predictions were pathologically cross-referenced with a medical professional's diagnosis using the intraoperative images of a prospectively enrolled patient. In total, 605 static images were obtained. Among the cropped 117,223 patches, 58,088 were labeled as tumors, while the remaining 59,135 were labeled as non-tumorous tissues. The evaluation of the image dataset revealed that the wide-ResNet model had the highest accuracy of 0.768, with an F1 score of 0.766. A preliminary evaluation on one patient indicated alignment between the ground truth set by neurosurgeons, the model's predictions, and histopathological findings. Our deep learning algorithm has a positive tumor discrimination performance in intraoperative 4-K endoscopic images in patients with pituitary adenomas.
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Affiliation(s)
- Yutaro Fuse
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
- Academia-Industry Collaboration Platform for Cultivating Medical AI Leaders (AI-MAILs), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazuhito Takeuchi
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
| | | | - Yuichi Nagata
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Yusuke Takagi
- Department of Computer Science, Nagoya Institute of Technology, Nagoya, Japan
| | - Tetsuya Nagatani
- Department of Neurosurgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Ichiro Takeuchi
- RIKEN Center for Advanced Intelligence Project, Tokyo, Japan
- Department of Mechanical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Ryuta Saito
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
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Takeuchi K, Ohka F, Nagata Y, Maeda S, Tanahashi K, Araki Y, Yamamoto T, Sasaki H, Mizuno A, Harada H, Saito R. Endoscopic Trans-Mini-Cylinder Biopsy for Intraparenchymal Brain Lesions. World Neurosurg 2022; 167:e1147-e1153. [PMID: 36089269 DOI: 10.1016/j.wneu.2022.08.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 08/31/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The biopsy procedure is intended to obtain an adequate specimen volume from the targeted area while ensuring minimal damage to the normal brain. We performed navigation-guided endoscopic biopsy using a small-diameter cylinder to reduce the invasiveness of the biopsy procedure and ensure a sufficient amount of tissue is collected. We examined whether it is possible to reduce brain tissue injury by using a small-diameter cylinder and improve safety and effectiveness by using an endoscope to directly observe the lesion and achieve hemostasis. METHODS Patients who underwent endoscopic biopsy surgery using a 6-mm-diameter cylinder for intraparenchymal lesions were enrolled in this study. Postoperative hematoma formation and the extent of trajectory scarring were assessed. RESULTS Fifty-two procedures performed on 51 patients were analyzed in this study. Postoperative neurological deterioration was not observed in any patient. A pathological diagnosis was made for all patients. Postoperative computed tomography revealed no hematoma after 49 procedures and a small hematoma after 3 procedures, and no patients required additional treatment. A postoperative trajectory scar less than 5 mm in diameter was observed after 30 procedures, a scar of 5-10 mm was observed after 19 procedures, a scar larger than 10 mm was observed after 3 procedures at 1 week after surgery, and 40, 6 and 0 scars were observed at 3 months after surgery. CONCLUSIONS Endoscopic biopsy using a small-diameter cylinder is a possible alternative biopsy technique for intraparenchymal lesions. This surgical technique is useful, especially in patients at risk of hemorrhagic complications.
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Affiliation(s)
- Kazuhito Takeuchi
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya City, Aichi, Japan.
| | - Fumiharu Ohka
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya City, Aichi, Japan
| | - Yuichi Nagata
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya City, Aichi, Japan
| | - Sachi Maeda
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya City, Aichi, Japan
| | - Kuniaki Tanahashi
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya City, Aichi, Japan
| | - Yoshio Araki
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya City, Aichi, Japan
| | - Taiki Yamamoto
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya City, Aichi, Japan
| | - Hiroo Sasaki
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya City, Aichi, Japan
| | - Akihiro Mizuno
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya City, Aichi, Japan
| | - Hideyuki Harada
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya City, Aichi, Japan
| | - Ryuta Saito
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya City, Aichi, Japan
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Oertel J, Fischer G, Linsler S, Huelser M, Sippl C, Teping F. Endoscope-assisted resection of brainstem cavernous malformations. Neurosurg Rev 2022; 45:2823-2836. [PMID: 35499666 PMCID: PMC9349151 DOI: 10.1007/s10143-022-01793-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 03/29/2022] [Accepted: 04/19/2022] [Indexed: 11/25/2022]
Abstract
Abstract
Targeted surgical precision and minimally invasive techniques are of utmost importance for resectioning cavernous malformations involving the brainstem region. Minimisation of the surgical corridor is desirable but should not compromise the extent of resection. This study provides detailed information on the role of endoscopy in this challenging surgical task. A retrospective analysis of medical documentation, radiologic studies and detailed intraoperative video documentation was performed for all consecutive patients who underwent surgical resection of brainstem cavernous malformations between 2010 and 2020 at the authors’ institution. A case-based volumetry of the corticotomy was performed and compared to cavernoma dimensions. A total of 20 procedures have been performed in 19 patients. Neuroendoscopy was implemented in all cases. The mean size of the lesion was 5.4 (± 5) mm3. The average size of the brainstem corticotomy was 4.5 × 3.7 (± 1.0 × 1.1) mm, with a median relation to the cavernoma’s dimension of 9.99% (1.2–31.39%). Endoscopic 360° inspection of the resection cavity was feasible in all cases. There were no endoscopy-related complications. Mean follow-up was 27.8 (12–89) months. Gross-total resection was achieved in all but one case (95%). Sixteen procedures (80%) resulted in an improved or stable medical condition. Eleven patients (61.1%) showed further improvement 12 months after the initial surgery. With the experience provided, endoscopic techniques can be safely implemented in surgery for BSCM. A combination of neuroendoscopic visualisation and neuronavigation might enable a targeted size of brainstem corticotomy. Endoscopy can currently be considered a valuable additive tool to facilitate the preparation and resection of BSCM.
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Affiliation(s)
- Joachim Oertel
- Department of Neurosurgery, Saarland University Medical Centre, Kirrbergerstraße, Gebäude 90.5, 66421, Homburg, Saarland, Germany.
| | - Gerrit Fischer
- Department of Neurosurgery, Saarland University Medical Centre, Kirrbergerstraße, Gebäude 90.5, 66421, Homburg, Saarland, Germany
| | - Stefan Linsler
- Department of Neurosurgery, Saarland University Medical Centre, Kirrbergerstraße, Gebäude 90.5, 66421, Homburg, Saarland, Germany
| | - Matthias Huelser
- Department of Neurosurgery, Saarland University Medical Centre, Kirrbergerstraße, Gebäude 90.5, 66421, Homburg, Saarland, Germany
| | - Christoph Sippl
- Department of Neurosurgery, Saarland University Medical Centre, Kirrbergerstraße, Gebäude 90.5, 66421, Homburg, Saarland, Germany
| | - Fritz Teping
- Department of Neurosurgery, Saarland University Medical Centre, Kirrbergerstraße, Gebäude 90.5, 66421, Homburg, Saarland, Germany
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Nebor I, Anderson Z, Mejia-Munne JC, Hussein A, Montemagno K, Fumagalli R, Labiad I, Patil Y, Andaluz N, Sedaghat AR, Zuccarello M, Forbes JA. 2D versus 3D Endoscopy: Head-to-Head Comparison in a Simulated Model of Endoscopic Endonasal Dural Suturing. J Neurol Surg B Skull Base 2021; 83:423-429. [DOI: 10.1055/s-0041-1736635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/21/2021] [Indexed: 10/19/2022] Open
Abstract
Abstract
Objective Endonasal dural suturing (EDS) has been reported to decrease the incidence of cerebrospinal fluid fistula. This technique requires handling of single-shaft instrumentation in the narrow endonasal corridor. It has been proposed that three-dimensional (3D) endoscopes were associated with improved depth perception. In this study, we sought to perform a comparison of two-dimensional (2D) versus 3D endoscopy by assessing surgical proficiency in a simulated model of EDS.
Materials and Methods Twenty-six participants subdivided into groups based on previous endoscopic experience were asked to pass barbed sutures through preset targets with either 2D (Storz Hopkins II) or 3D (Storz TIPCAM) endoscopes on 3D-printed simulation model. Surgical precision and procedural time were measured. All participants completed a Likert scale questionnaire.
Results Novice, intermediate, and expert groups took 11.0, 8.7, and 5.7 minutes with 2D endoscopy and 10.9, 9.0, and 7.6 minutes with 3D endoscopy, respectively. The average deviation for novice, intermediate, and expert groups (mm) was 5.5, 4.4, and 4.3 with 2D and 6.6, 4.6, and 3.0 with 3D, respectively. No significant difference in procedural time or accuracy was found in 2D versus 3D endoscopy. 2D endoscopic visualization was preferred by the majority of expert/intermediate participants, while 3D endoscopic visualization by the novice group.
Conclusion In this pilot study, there was no statistical difference in procedural time or accuracy when utilizing 2D versus 3D endoscopes. While it is possible that widespread familiarity with 2D endoscopic equipment has biased this study, preliminary analysis suggests that 3D endoscopy offers no definitive advantage over 2D endoscopy in this simulated model of EDS.
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Affiliation(s)
- Ivanna Nebor
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Zoe Anderson
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Juan C. Mejia-Munne
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Ahmed Hussein
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Kora Montemagno
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Rebecca Fumagalli
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Ikrame Labiad
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Yash Patil
- Department of Otolaryngology – Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Norberto Andaluz
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Ahmad R. Sedaghat
- Department of Otolaryngology – Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Mario Zuccarello
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Jonathan A. Forbes
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
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Galli J, Morelli F, Rigante M, Paludetti G. Management of cerebrospinal fluid leak: the importance of multidisciplinary approach. ACTA ACUST UNITED AC 2021; 41:S18-S29. [PMID: 34060517 PMCID: PMC8172102 DOI: 10.14639/0392-100x-suppl.1-41-2021-02] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/08/2021] [Indexed: 01/20/2023]
Abstract
Cerebrospinal fluid (CSF) leak remains a rare condition, characterized by serious complications and potentially fatal. According to different etiologies, CSF leaks may be classified into two main categories: traumatic and spontaneous. Spontaneous fistulas seem to be mainly related to obesity and idiopathic intracranial hypertension. Diagnosis is both clinical and radiological. During the last three decades, surgical treatment has mostly shifted to endonasal endoscopic approach, which widely demonstrated to be more effective than invasive intracranial ones. Post-operative complications, long-term sequelae and hospital stay are strongly reduced thanks to endoscopic approach. The diagnosis and treatment of CSF leaks represent a difficult and challenge task. The main effort seems to be related to the precise localization of the leak. An accurate assessment of both predisposing factors and comorbidities is mandatory in case of spontaneous leaks. However, a clinical multidisciplinary evaluation as well as treatment, is essential to decrease the rate of failure of surgery. The presence of a dedicated instruments, the Skull Base Team, the knowledge of reconstructive materials and techniques represents a decisive result in therapeutical management even if for each patient an effective therapeutic algorithm can be obtained considering the correct leak detection and characteristics. In conclusion the strict teamwork with neurosurgeons, neuroradiologists, ophtalmologists will enable the development also of innovative biomaterials, which could spread and standardize multi-layer techniques, nowadays still related to surgeon preferences.
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Affiliation(s)
- Jacopo Galli
- Otorhinolaryngology, Head and Neck Surgery, "A. Gemelli" Hospital Foundation IRCCS, Catholic University of the Sacred Heart, Rome, Italy
| | - Francesco Morelli
- Otorhinolaryngology, Head and Neck Surgery, "A. Gemelli" Hospital Foundation IRCCS, Catholic University of the Sacred Heart, Rome, Italy
| | - Mario Rigante
- Otorhinolaryngology, Head and Neck Surgery, "A. Gemelli" Hospital Foundation IRCCS, Catholic University of the Sacred Heart, Rome, Italy
| | - Gaetano Paludetti
- Otorhinolaryngology, Head and Neck Surgery, "A. Gemelli" Hospital Foundation IRCCS, Catholic University of the Sacred Heart, Rome, Italy
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Hintschich CA, Fischer R, Seebauer C, Schebesch KM, Bohr C, Kühnel T. A third hand to the surgeon: the use of an endoscope holding arm in endonasal sinus surgery and well beyond. Eur Arch Otorhinolaryngol 2021; 279:1891-1898. [PMID: 34148145 PMCID: PMC8930793 DOI: 10.1007/s00405-021-06935-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/09/2021] [Indexed: 10/27/2022]
Abstract
BACKGROUND Extended endoscopic endonasal operations of the sinuses and the frontal skull base require a bimanual action of the surgeon in many cases. Thus, typically an assistant guides the endoscope and centers the field of view. In this study, we investigate in which cases an endoscope holding arm can be used alternatively. MATERIALS AND METHODS The electromagnetic system ENDOFIXexo was used in different surgical interventions of the paranasal sinuses and beyond questioning ergonomics and geometrical limitations. The realized degrees of freedom were documented, and a topography of possible applications compiled. RESULTS The presented system is limited by the anatomy of the anterior ethmoid and dynamic working conditions in the sagittal direction. Especially in extended interventions in the posterior ethmoid, in which parts of the nasal septum have been resected and a static position of the endoscope is desired the surgeon can greatly benefit from the robotic arm. Moreover, through the high flexibility of the endoscopic arm surgeries of the pharynx and larynx were performed, questioning the current gold standard of microscope-assisted surgical procedures. CONCLUSION Under the impression of an urging staff shortage and due to its unlimited patience, the ENDOFIXexo arm seems promising. Taking into account the complex anatomy and the limited access, we especially see a favorable field of application in the surgery of the pituitary gland and skull base tumors.
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Affiliation(s)
- Constantin A Hintschich
- Department of Otorhinolaryngology, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
| | - René Fischer
- Department of Otorhinolaryngology, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Caroline Seebauer
- Department of Otorhinolaryngology, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | | | - Christopher Bohr
- Department of Otorhinolaryngology, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Thomas Kühnel
- Department of Otorhinolaryngology, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
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Pennacchietti V, Stoelzel K, Tietze A, Lankes E, Schaumann A, Uecker FC, Thomale UW. First experience with augmented reality neuronavigation in endoscopic assisted midline skull base pathologies in children. Childs Nerv Syst 2021; 37:1525-1534. [PMID: 33515059 PMCID: PMC8084784 DOI: 10.1007/s00381-021-05049-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 01/14/2021] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Endoscopic skull base approaches are broadly used in modern neurosurgery. The support of neuronavigation can help to effectively target the lesion avoiding complications. In children, endoscopic-assisted skull base surgery in combination with navigation systems becomes even more important because of the morphological variability and rare diseases affecting the sellar and parasellar regions. This paper aims to analyze our first experience on augmented reality navigation in endoscopic skull base surgery in a pediatric case series. PATIENTS AND METHODS A retrospective review identified seventeen endoscopic-assisted endonasal or transoral procedures performed in an interdisciplinary setting in a period between October 2011 and May 2020. In all the cases, the surgical target was a lesion in the sellar or parasellar region. Clinical conditions, MRI appearance, intraoperative conditions, postoperative MRI, possible complications, and outcomes were analyzed. RESULTS The mean age of our patients was 14.5 ± 2.4 years. The diagnosis varied, but craniopharyngiomas (31.2%) were mostly represented. AR navigation was experienced to be very helpful for effectively targeting the lesion and defining the intraoperative extension of the pathology. In 65% of the oncologic cases, a radical removal was proven in postoperative MRI. The mean follow-up was 89 ± 79 months. There were no deaths in our series. No long-term complications were registered; two cerebrospinal fluid (CSF) fistulas and a secondary abscess required further surgery. CONCLUSION The implementation of augmented reality to endoscopic-assisted neuronavigated procedures within the skull base was feasible and did provide relevant information directly in the endoscopic field of view and was experienced to be useful in the pediatric cases, where anatomical variability and rarity of the pathologies make surgery more challenging.
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Affiliation(s)
- Valentina Pennacchietti
- Pediatric Neurosurgery, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Katharina Stoelzel
- Department of Otorhinolaryngology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Anna Tietze
- Institute of Neuroradiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Erwin Lankes
- Department for Pediatric Endocrinology and Diabetes, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Andreas Schaumann
- Pediatric Neurosurgery, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany
| | | | - Ulrich Wilhelm Thomale
- Pediatric Neurosurgery, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
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