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Kim CY, Chung MS, Park JS. Visible Korean based on true color sectioned images for making realistic digital human, twenty years' record: a review. Surg Radiol Anat 2024; 46:935-947. [PMID: 38717503 DOI: 10.1007/s00276-024-03381-2] [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: 01/17/2024] [Accepted: 05/02/2024] [Indexed: 07/03/2024]
Abstract
PURPOSE Visible Korean (VK) consists of two-dimensional (2D) images and three-dimensional (3D) models. The VK is used in various educational tools and research sources for anatomy. In this paper, we report on the records of the VK over 20 years. METHODS Research papers related to Visible Korean were reviewed. RESULTS Through this report of VK records, we highlighted the essential points for making true color and ultra-high-resolution sectioned images of human and animal bodies, for making various 2D and 3D applications from the sectioned images, and for good use of the sectioned images and their applications. CONCLUSION In this metaverse age that various virtual environments are required in medical education and research, the VK dataset meets the reality of virtual human models as fundamental data owing to the actual color and high resolution of the VK dataset.
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Affiliation(s)
- Chung Yoh Kim
- Department of Anatomy, Dongguk University School of Medicine, 87 Dongdae-ro, Gyeongju, 38066, Republic of Korea
| | - Min Suk Chung
- Department of Anatomy, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Jin Seo Park
- Department of Anatomy, Dongguk University School of Medicine, 87 Dongdae-ro, Gyeongju, 38066, Republic of Korea.
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Morales-Roccuzzo D, Sabahi M, Obrzut M, Najera E, Monterroso-Cohen D, Bsat S, Adada B, Borghei-Razavi H. A primer to vascular anatomy of the brain: an overview on anterior compartment. Surg Radiol Anat 2024; 46:829-842. [PMID: 38630270 PMCID: PMC11161539 DOI: 10.1007/s00276-024-03359-0] [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: 02/05/2024] [Accepted: 03/30/2024] [Indexed: 06/09/2024]
Abstract
PURPOSE Knowledge of neurovascular anatomy is vital for neurosurgeons, neurologists, neuro-radiologists and anatomy students, amongst others, to fully comprehend the brain's anatomy with utmost depth. This paper aims to enhance the foundational knowledge of novice physicians in this area. METHOD A comprehensive literature review was carried out by searching the PubMed and Google Scholar databases using primary keywords related to brain vasculature, without date restrictions. The identified literature was meticulously examined and scrutinized. In the process of screening pertinent papers, further articles and book chapters were obtained through analysis and additional assessing of the reference lists. Additionally, four formalin-fixed, color latex-injected cadaveric specimens preserved in 70% ethanol solution were dissected under surgical microscope (Leica Microsystems Inc, 1700 Leider Ln, Buffalo Grove, IL 60089 USA). Using microneurosurgical as well as standard instruments, and a high-speed surgical drill (Stryker Instruments 1941 Stryker Way Portage, MI 49002 USA). Ulterior anatomical dissection was documented in microscopic images. RESULTS Encephalic circulation functions as a complex network of intertwined vessels. The Internal Carotid Arteries (ICAs) and the Vertebral Arteries (VAs), form the anterior and posterior arterial circulations, respectively. This work provides a detailed exploration of the neurovascular anatomy of the anterior circulation and its key structures, such as the Anterior Cerebral Artery (ACA) and the Middle Cerebral Artery (MCA). Embryology is also briefly covered, offering insights into the early development of the vascular structures of the central nervous system. Cerebral venous system was detailed, highlighting the major veins and tributaries involved in the drainage of blood from the intracranial compartment, with a focus on the role of the Internal Jugular Veins (IJVs) as the primary, although not exclusive, deoxygenated blood outflow pathway. CONCLUSION This work serves as initial guide, providing essential knowledge on neurovascular anatomy, hoping to reduce the initial impact when tackling the subject, albeit the intricate vasculature of the brain will necessitate further efforts to be conquered, that being crucial for neurosurgical and neurology related practice and clinical decision-making.
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Affiliation(s)
- Diego Morales-Roccuzzo
- Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd, Weston, FL, 33331, USA.
| | - Mohammadmahdi Sabahi
- Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd, Weston, FL, 33331, USA
| | - Michal Obrzut
- Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd, Weston, FL, 33331, USA
| | - Edinson Najera
- Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd, Weston, FL, 33331, USA
| | - David Monterroso-Cohen
- Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd, Weston, FL, 33331, USA
| | - Shadi Bsat
- Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd, Weston, FL, 33331, USA
| | - Badih Adada
- Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd, Weston, FL, 33331, USA
| | - Hamid Borghei-Razavi
- Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd, Weston, FL, 33331, USA
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Pescatori L, Taurone S, Ciccarelli A, Palmieri M, Serraino A, Artico M, Fornai F, Longhitano Y, Zanza C, Tesauro M, Savioli G, Miglietta S, Ciappetta P. Petroclival Clinoidal Folds and Arachnoidal Membranes of the Anteromedial Incisural Space: Clinical Anatomy for Neuro Critical Care. Diagnostics (Basel) 2023; 13:3203. [PMID: 37892024 PMCID: PMC10605941 DOI: 10.3390/diagnostics13203203] [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: 09/11/2023] [Revised: 10/09/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
A systematic and narrative literature review was performed, focusing attention on the anatomy of the area located at the junction of the sphenoid and the basal portion of the temporal bone (petrous bone, petrous apex, upper petro-clival region) encircled by the free edge of the tentorium, the insertion of the tentorium itself to the petrous apex and the anterior and posterior clinoid processes that give rise to three distinct dural folds or ligaments: the anterior petroclinoid ligament, the posterior petroclinoid ligament and the interclinoid ligament. These dural folds constitute the posterior portion of the roof of the cavernous sinus denominated "the oculomotor triangle". The main purpose of this review study was to describe this anatomical region, particularly in the light of the relationships between the anterior margin of the free edge of the tentorium and the above-mentioned components of the sphenoid and petrous bone.
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Affiliation(s)
- Lorenzo Pescatori
- Department of Neurosurgery, S. Eugenio Hospital of Rome, 00144 Rome, Italy
| | - Samanta Taurone
- Department of Movement, Human and Health Sciences, Division of Health Sciences, University of Rome “Foro Italico”, 00135 Rome, Italy
| | - Antonello Ciccarelli
- Department of Movement, Human and Health Sciences, Division of Health Sciences, University of Rome “Foro Italico”, 00135 Rome, Italy
| | - Mauro Palmieri
- Human Neurosciences Department, A.U.O. “Policlinico Umberto I” Neurosurgery Division, Sapienza University, 00185 Rome, Italy (A.S.)
| | - Alessandra Serraino
- Human Neurosciences Department, A.U.O. “Policlinico Umberto I” Neurosurgery Division, Sapienza University, 00185 Rome, Italy (A.S.)
| | - Marco Artico
- Department of Sensory Organs, “Sapienza” University of Rome, 00185 Rome, Italy;
| | - Francesco Fornai
- IRCCS Neuromed, 86077 Pozzilli, Italy;
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy
| | - Yaroslava Longhitano
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Department of Emergency Medicine, Humanitas University Hospital, 20089 Rozzano, Italy
| | - Christian Zanza
- Italian Society of Prehospital Emergency Medicine (SIS 118), 74121 Taranto, Italy
- Post Graduate School of Geriatric Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Manfredi Tesauro
- Post Graduate School of Geriatric Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy
- Department of Systems Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Gabriele Savioli
- Emergency Department, IRCCS Fondazione Policlinico San Matteo, 27100 Pavia, Italy;
| | - Selenia Miglietta
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, “Sapienza” University of Rome, 00185 Rome, Italy;
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Bayatli E, Cömert A. Scratching in the minefield: using intertriangles line to safely perform anterior petrosectomy. Surg Radiol Anat 2023; 45:513-522. [PMID: 36961566 DOI: 10.1007/s00276-023-03131-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 03/13/2023] [Indexed: 03/25/2023]
Abstract
PURPOSE The transpetrosal-transtentorial approach provides a practical and safe surgical corridor for the treatment of petroclival region lesions. Any inaccuracies while performing this surgical technique can result in catastrophic results; nevertheless, this can be prevented under the guidance of a detailed anatomical orientation. An "intertriangles line" was defined to preserve the internal auditory canal (IAC) and cochlea during extradural bone drilling. METHODS The anatomical study consisted of two groups: the cadaveric head and the skull group. A literature-based landmark and criteria list was created to examine the borders of the Kawase triangle/space and evaluate the anatomical structures that may be at risk during drilling for anterior petrosectomy. RESULTS A total of 20 cadaveric head sides and 30 dried skull sides were examined. The rhomboid area was divided into two triangles with a common the intertriangles line. In all dissections, the IAC was found to be localized posterior to the "intertriangle line". A minimum distance of 1 mm for the Internal Carotid artery and 2 mm for the IAC can serve as threshold values to be considered by the surgeon during drilling for petrosectomy. CONCLUSIONS Kawase's area resembles a minefield, in which every step and manipulation should be considered. A minimal but effective resection of the cranial base is needed to increase safety and decrease morbidity during skull base surgery. Furthermore, this study investigated accessible and prominent landmarks to establish a feasible area of triangles and define the intertriangles line to guide the neurosurgeon under microscope and avoid IAC injury.
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Affiliation(s)
- Eyüp Bayatli
- Department of Neurosurgery, School of Medicine, Ankara University, Ankara, Türkiye
| | - Ayhan Cömert
- Department of Anatomy, School of Medicine, Ankara University, Ankara, Türkiye.
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Lai C, Lui JT, Chen JM, Lin VY, Agrawal SK, Blevins NH, Ladak HM, Pirouzmand F. High-Fidelity Virtual Reality Simulation for the Middle Cranial Fossa Approach—Modules for Surgical Rehearsal and Education. Oper Neurosurg (Hagerstown) 2022; 23:505-513. [DOI: 10.1227/ons.0000000000000387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 06/12/2022] [Indexed: 11/16/2022] Open
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Balcerzak A, Tubbs RS, Zielinska N, Olewnik Ł. Clinical analysis of cavernous sinus anatomy, pathologies, diagnostics, surgical management and complications - comprehensive review. Ann Anat 2022; 245:152004. [PMID: 36183938 DOI: 10.1016/j.aanat.2022.152004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 09/02/2022] [Accepted: 09/05/2022] [Indexed: 11/24/2022]
Abstract
For decades, the cavernous sinus (CS) has been the subject of debates and scientific studies aimed at elucidating its anatomical variability, and at choosing the best method for accessing it so that optimal diagnoses and related surgical treatments can be decided. The present review considers a series of issues related to the CS. The anatomy of the CS and its features is explored first, and the most important structures, spaces and morphological variations are considered. This is followed by CS pathology and selected diagnostic methods that have proved useful in therapy, and then the management of these pathologies is discussed. Examples of therapeutic steps that have proved helpful in specific cases are taken from the literature. Finally, the various surgical accesses and complications that can be encountered during invasive interventions in the CS area are discussed. The aim of this study is to summarize up-to-date anatomical and clinical knowledge about the CS, citing the most informative scientific papers and aggregating their results. Morphological variations of the CS are common but have not been well described in the literature.
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Affiliation(s)
- Adrian Balcerzak
- Department of Anatomical Dissection and Donation, Medical University of Lodz, Poland
| | - R Shane Tubbs
- Department of Neurosurgery, Tulane University School of Medicine, New Orleans, LA, USA; Department of Neurosurgery and Ochsner Neuroscience Institute, Ochsner Health System, New Orleans, LA, USA; Department of Anatomical Sciences, St. George's University, Grenada; Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, LA, USA; Department of Surgery, Tulane University School of Medicine, New Orleans, LA, USA; University of Queensland, Brisbane, Australia
| | - Nicol Zielinska
- Department of Anatomical Dissection and Donation, Medical University of Lodz, Poland
| | - Łukasz Olewnik
- Department of Anatomical Dissection and Donation, Medical University of Lodz, Poland.
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Hendricks BK, Benet A, Lawrence PM, Benner D, Preul MC, Lawton MT. Anatomical triangles for use in skull base surgery: a comprehensive review. World Neurosurg 2022; 164:79-92. [DOI: 10.1016/j.wneu.2022.04.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 10/18/2022]
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Yang Z, Cai J, Du Z, Song J. How I do it: Surgical Resection of a Recurrent Chondromyxoid Fibroma by Micro-Endoscopic Combination Technique. Acta Neurochir (Wien) 2022; 164:1961-1965. [PMID: 35312869 DOI: 10.1007/s00701-022-05185-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/07/2022] [Indexed: 12/28/2022]
Abstract
BACKGROUND The surgical resection of the tumor spreading into the cavernous sinus (CS) is complicated and challenging. METHOD We report a left recurrent CS chondromyxoid fibroma occupying the clival-petrous apex-parasellar-suprasellar area, which was totally removed by the micro-endo combination technique via the middle cranial fossa extradural approach. CONCLUSION This case demonstrates the value of the micro-endoscopic combination technique for complicated skull base surgery.
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You Y, Kim CY, Kim SK, Chung BS, Har D, Choi J, Park JS. Advanced-sectioned images obtained by microsectioning of the entire male body. Clin Anat 2021; 35:79-86. [PMID: 34591338 DOI: 10.1002/ca.23795] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/15/2021] [Accepted: 09/26/2021] [Indexed: 11/09/2022]
Abstract
Realistic two-dimensional (2D) and three-dimensional (3D) applications for anatomical studies are being developed from true-colored sectioned images. We generated advanced-sectioned images of the entire male body and verified that anatomical structures of both normal and abnormal shapes could be visualized in them. The cadaver was serially sectioned at constant intervals using a cryomacrotome. The sectioned surfaces were photographed using a digital camera to generate horizontal advanced-sectioned images in which normal and abnormal structures were classified. Advanced-sectioned images of the entire male body were generated. The image resolution was 3.3 × 3.3 fold better than that of the first sectioned images obtained in 2002. In the advanced-sectioned images, normal and abnormal structures ranging from microscopic (≥0.06 mm × 0.06 mm; pixel size) to macroscopic (≤473.1 mm × 202 mm; body size) could be identified. Furthermore, the real shapes and actual sites of lung cancer and lymph node enlargement were ascertained in them. Such images will be useful because of their true color and high resolution in digital 2D and 3D applications for gross anatomy and clinical anatomy. In future, we plan to generate new advanced-sectioned images of abnormal cadavers with different diseases for clinical anatomy studies.
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Affiliation(s)
- Yaqian You
- Department of Anatomy, Dongguk University School of Medicine, Gyeongju, South Korea
| | - Chung Yoh Kim
- Department of Anatomy, Dongguk University School of Medicine, Gyeongju, South Korea
| | - Seul Ki Kim
- Department of Anatomy, Dongguk University School of Medicine, Gyeongju, South Korea
| | - Beom Sun Chung
- Department of Anatomy, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Donghwan Har
- College of ICT Engineering, Chung Ang University, Seoul, South Korea
| | | | - Jin Seo Park
- Department of Anatomy, Dongguk University School of Medicine, Gyeongju, South Korea
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Microsurgery Training in the Digital Era: A Systematic Review of Accessible Digital Resources. Ann Plast Surg 2021; 85:337-343. [PMID: 31923014 DOI: 10.1097/sap.0000000000002214] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Significant variation exists in microsurgery training resources provided across plastic surgery residency programs, and dedicated microsurgery courses can be logistically difficult to access (cost, location, protected time, etc). Widespread use of personal digital technology has facilitated the emergence of resources that enable easily accessible microsurgical training through digital modalities that augment traditional training. The authors sought to conduct the first systematic review of all such resources. METHODS A systematic review of MEDLINE, PubMed Central, and EMBASE was performed according to Preferred Reporting Items for Systematic Review and Meta-analysis guidelines to identify articles describing easily accessible microsurgery training resources. Additional searches on Google, the iOS application store, the Google Play store, and YouTube were conducted using comparable search terms. RESULTS Nineteen articles describing easily accessible digital microsurgery training resources were identified, which included 9 interactive and 10 passive training resources. Interactive resources included methods for using smartphones, tablets, and computers to provide magnification for microsurgical skill training. Passive resources included training videos, educational forums, and 3-dimensional anatomical models. Google search revealed an additional interactive, commercially available device for positioning a smartphone above a microsurgical training platform. iOS Store and Google Play search revealed 5 passive training applications with tutorials and technique videos. YouTube search revealed 146 videos on microsurgical technique and training models from 19 users with verifiable affiliations. CONCLUSIONS In contrast to costly and variable microsurgical courses and laboratories, digital technology gives trainees the opportunity to learn about and practice microsurgical techniques in any setting at any time and can serve as a valuable adjunct to traditional training modalities.
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Microsurgical Anatomy of the Inferomedial Paraclival Triangle: Contents, Topographical Relationships and Anatomical Variations. Brain Sci 2021; 11:brainsci11050596. [PMID: 34064376 PMCID: PMC8147798 DOI: 10.3390/brainsci11050596] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 04/24/2021] [Accepted: 05/02/2021] [Indexed: 11/17/2022] Open
Abstract
The inferomedial triangle is one of the two surgical triangles in the paraclival subregion of the skull base. It is delineated by the posterior clinoid process, the dural entrance of the trochlear nerve and the dural entrance of the abducens nerve. The aim of the present article is to describe the anatomical variations within the inferomedial triangle. Measurements of the triangle’s borders and area were supplemented by detailed observations of the topographical anatomy and various arrangements of its contents. Nine adult cadaveric heads (18 sides) and 28 sagittal head sections were studied. The mean area of the inferomedial triangle was estimated to be 60.7 mm2. The mean lengths of its medial, lateral and superior borders were 16.1 mm, 11.9 mm and 10.4 mm, respectively. The dorsal meningeal artery was identified within the inferomedial triangle in 37 out of 46 sides (80.4%). A well-developed petrosphenoidal ligament of Grüber was identified within the triangle on 36 sides (78.3%). Although some structures were variable, the constant contents of the inferomedial triangle were the posterior petroclinoid dural fold, the upper end of the petroclival suture, the gulfar segment of the abducens nerve and the posterior genu of the intracavernous internal carotid artery.
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Chung BS, Park JS. Automatic segmentation of true color sectioned images using FMRIB Software Library: First trial in brain, gray matter, and white matter. Clin Anat 2020; 33:1197-1203. [PMID: 31943396 DOI: 10.1002/ca.23564] [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: 11/25/2019] [Accepted: 01/10/2020] [Indexed: 11/09/2022]
Abstract
Three-dimensional (3D) models of the brain made from magnetic resonance images (MRI) are used in various medical fields. 3D models assembled from grayscale color and low-resolution can be complemented with true color sectioned images of the Visible Korean. The purpose of this study is to apply the MRI automatic segmentation technique to the sectioned images. 3D models of the sectioned images, which have true color and high resolution, can be produced without manual segmentation. The Brain Extraction Tool and the Automated Segmentation Tool of the FMRIB Software Library (FSL) were chosen for automatic segmentation. Using those tools, true color sectioned images were reconstructed from gray 3D models of brain, gray matter, and white matter. Color 3D models of those structures were generated from the gray 3D models using MRIcroGL. The color 3D models made from the sectioned images revealed details of brain anatomy that could not be observed on the 3D models from MRI. This trial suggests that convergence of the MRI segmentation technique with color sectioned images is a time-efficient method for producing color 3D models of various structures. In future, the method of this study will be used for various sectioned images of cadavers. The resulting color sectioned images and 3D models will be made available to other researchers.
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Affiliation(s)
- Beom Sun Chung
- Department of Anatomy, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Jin Seo Park
- Department of Anatomy, Dongguk University School of Medicine, Gyeongju, Republic of Korea
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Chung BS, Chung MS, Park JS. Portable Document Format File Containing the Schematics and Operable Surface Models of the Head Structures. J Korean Med Sci 2020; 35:e212. [PMID: 32657083 PMCID: PMC7358063 DOI: 10.3346/jkms.2020.35.e212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 05/20/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND A book entitled "Visually Memorable Regional Anatomy (VMRA)" consists of extremely schematic figures as well as concise anatomic knowledge. On the other hand, in the Visible Korean (VK) project, three-dimensional surface models of 297 head structures have been reconstructed. The study's objective was to verify how the coexistence of the schematic figures and realistic surface models affected anatomy learning. METHODS In the portable document format (PDF) file of VMRA, 19 pages of the surface models of the head from the PDF file of VK were embedded. The resultant PDF file was utilized as a learning tool of the medical students in two universities. RESULTS The PDF file could be downloaded free of charge from anatomy.co.kr. The PDF file has been accessed by users from multiple countries including Korea, United States, and Hungary. In the PDF file, the surface models could be selected in any combinations, magnified, freely rotated, and compared to the corresponding schematics. The number of hours that the PDF file was used by medical students and the scores of written examination on the PDF file showed a low positive correlation in a university. The students replied that the combined PDF file was helpful for understanding anatomy and for doing cadaver dissection. They were also satisfied with the convenience of comparing the surface models and schematics. CONCLUSION The freely obtainable PDF file would be a beneficial tool to help students learn anatomy easily, interactively, and accurately.
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Affiliation(s)
- Beom Sun Chung
- Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA
| | - Min Suk Chung
- Department of Anatomy, Ajou University School of Medicine, Suwon, Korea
| | - Jin Seo Park
- Department of Anatomy, Dongguk University School of Medicine, Gyeongju, Korea.
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Chung BS, Han M, Har D, Park JS. Advanced Sectioned Images of a Cadaver Head with Voxel Size of 0.04 mm. J Korean Med Sci 2019; 34:e218. [PMID: 31456382 PMCID: PMC6717240 DOI: 10.3346/jkms.2019.34.e218] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 07/22/2019] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The sectioned images of a cadaver head made from the Visible Korean project have been used for research and educational purposes. However, the image resolution is insufficient to observe detailed structures suitable for experts. In this study, advanced sectioned images with higher resolution were produced for the identification of more detailed structures. METHODS The head of a donated female cadaver was scanned for 3 Tesla magnetic resonance images and diffusion tensor images (DTIs). After the head was frozen, the head was sectioned serially at 0.04-mm intervals and photographed repeatedly using a digital camera. RESULTS On the resulting 4,000 sectioned images (intervals and pixel size, 0.04 mm³; color depth, 48 bits color; a file size, 288 Mbytes), minute brain structures, which can be observed not on previous sectioned images but on microscopic slides, were observed. The voxel size of this study (0.04 mm³) was very minute compared to our previous study (0.1 mm³; resolution, 4,368 × 2,912) and Visible Human Project of the USA (0.33 mm³; resolution, 2,048 × 2,048). Furthermore, the sectioned images were combined with tractography of the DTIs to elucidate the white matter with high resolution and the actual color of the tissue. CONCLUSION The sectioned images will be used for diverse research, including the applications for the cross sectional anatomy and three-dimensional models for virtual experiments.
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Affiliation(s)
- Beom Sun Chung
- Department of Anatomy, Ajou University School of Medicine, Suwon, Korea
| | - Miran Han
- Department of Radiology, Ajou University School of Medicine, Suwon, Korea
| | - Donghwan Har
- College of ICT Engineering, Chung Ang University, Seoul, Korea
| | - Jin Seo Park
- Department of Anatomy, Dongguk University School of Medicine, Gyeongju, Korea.
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Chung BS, Park JS. Real-Color Volume Models Made from Real-Color Sectioned Images of Visible Korean. J Korean Med Sci 2019; 34:e86. [PMID: 30886552 PMCID: PMC6417999 DOI: 10.3346/jkms.2019.34.e86] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 02/26/2019] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Volume models made from magnetic resonance images on computed tomographs can produce horizontal, coronal, sagittal, and oblique planes that are used widely in clinics, although detailed structures cannot be identified. Existing real color volume models are mostly commercial and their production methods have not been released. The aim of this study was to distribute free of charge, real-color volume models produced from sectioned images with the production method. METHODS The original voxel size of sectioned images was increased appropriately so that the volume model could be handled by typical personal computers. By using Dicom Browser and MRIcroGL, the sectioned images were processed to become the volume models. RESULTS On the MRIcroGL, the resultant volume model with the voxel size of 0.5 × 0.5 × 0.5 mm3 could be displayed and freely rotated. By adjusting variables of the software, desired oblique planes could be produced instantly. With overlay function, a model of segmented structure can be overlapped to the entire volume models. The sectioned images with high quality and the segmentation data of Visible Korean enabled the identification of detailed anatomical structures on the planes. CONCLUSION The volume models can be used by medical students and doctors for learning sectional anatomy. Other researchers can utilize the method of this study to produce volume models from their own sectioned images.
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Affiliation(s)
- Beom Sun Chung
- Department of Anatomy, Ajou University School of Medicine, Suwon, Korea
| | - Jin Seo Park
- Department of Anatomy, Dongguk University School of Medicine, Gyeongju, Korea
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Chung BS, Jeon CY, Huh JW, Jeong KJ, Har D, Kwack KS, Park JS. Rise of the Visible Monkey: Sectioned Images of Rhesus Monkey. J Korean Med Sci 2019; 34:e66. [PMID: 30833883 PMCID: PMC6393759 DOI: 10.3346/jkms.2019.34.e66] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 01/29/2019] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Gross anatomy and sectional anatomy of a monkey should be known by students and researchers of veterinary medicine and medical research. However, materials to learn the anatomy of a monkey are scarce. Thus, the objective of this study was to produce a Visible Monkey data set containing cross sectional images, computed tomographs (CTs), and magnetic resonance images (MRIs) of a monkey whole body. METHODS Before and after sacrifice, a female rhesus monkey was used for 3 Tesla MRI and CT scanning. The monkey was frozen and sectioned at 0.05 mm intervals for the head region and at 0.5 mm intervals for the rest of the body using a cryomacrotome. Each sectioned surface was photographed using a digital camera to obtain horizontal sectioned images. Segmentation of sectioned images was performed to elaborate three-dimensional (3D) models of the skin and brain. RESULTS A total of 1,612 horizontal sectioned images of the head and 1,355 images of the remaining region were obtained. The small pixel size (0.024 mm × 0.024 mm) and real color (48 bits color) of these images enabled observations of minute structures. CONCLUSION Due to small intervals of these images, continuous structures could be traced completely. Moreover, 3D models of the skin and brain could be used for virtual dissections. Sectioned images of this study will enhance the understanding of monkey anatomy and foster further studies. These images will be provided to any requesting researcher free of charge.
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Affiliation(s)
- Beom Sun Chung
- Department of Anatomy, Ajou University School of Medicine, Suwon, Korea
| | - Chang-Yeop Jeon
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Korea
| | - Jae-Won Huh
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon, Korea
| | - Kang-Jin Jeong
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Korea
| | - Donghwan Har
- College of ICT Engineering, Chung Ang University, Seoul, Korea
| | - Kyu-Sung Kwack
- Department of Radiology, Ajou University School of Medicine, Suwon, Korea
| | - Jin Seo Park
- Department of Anatomy, Dongguk University School of Medicine, Gyeongju, Korea
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Newe A, Becker L. Three-Dimensional Portable Document Format (3D PDF) in Clinical Communication and Biomedical Sciences: Systematic Review of Applications, Tools, and Protocols. JMIR Med Inform 2018; 6:e10295. [PMID: 30087092 PMCID: PMC6103636 DOI: 10.2196/10295] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 05/07/2018] [Accepted: 05/24/2018] [Indexed: 12/20/2022] Open
Abstract
Background The Portable Document Format (PDF) is the standard file format for the communication of biomedical information via the internet and for electronic scholarly publishing. Although PDF allows for the embedding of three-dimensional (3D) objects and although this technology has great potential for the communication of such data, it is not broadly used by the scientific community or by clinicians. Objective The objective of this review was to provide an overview of existing publications that apply 3D PDF technology and the protocols and tools for the creation of model files and 3D PDFs for scholarly purposes to demonstrate the possibilities and the ways to use this technology. Methods A systematic literature review was performed using PubMed and Google Scholar. Articles searched for were in English, peer-reviewed with biomedical reference, published since 2005 in a journal or presented at a conference or scientific meeting. Ineligible articles were removed after screening. The found literature was categorized into articles that (1) applied 3D PDF for visualization, (2) showed ways to use 3D PDF, and (3) provided tools or protocols for the creation of 3D PDFs or necessary models. Finally, the latter category was analyzed in detail to provide an overview of the state of the art. Results The search retrieved a total of 902 items. Screening identified 200 in-scope publications, 13 covering the use of 3D PDF for medical purposes. Only one article described a clinical routine use case; all others were pure research articles. The disciplines that were covered beside medicine were many. In most cases, either animal or human anatomies were visualized. A method, protocol, software, library, or other tool for the creation of 3D PDFs or model files was described in 19 articles. Most of these tools required advanced programming skills and/or the installation of further software packages. Only one software application presented an all-in-one solution with a graphical user interface. Conclusions The use of 3D PDF for visualization purposes in clinical communication and in biomedical publications is still not in common use, although both the necessary technique and suitable tools are available, and there are many arguments in favor of this technique. The potential of 3D PDF usage should be disseminated in the clinical and biomedical community. Furthermore, easy-to-use, standalone, and free-of-charge software tools for the creation of 3D PDFs should be developed.
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Affiliation(s)
- Axel Newe
- Chair of Medical Informatics, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany.,NewTec GmbH, Pfaffenhofen an der Roth, Germany
| | - Linda Becker
- Chair of Health Psychology, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
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Chung BS, Park JS. In Reply to the Letter to the Editor Regarding “Six Walls of the Cavernous Sinus Identified by Sectioned Images and Three-Dimensional Models: Anatomic Report”. World Neurosurg 2017; 104:1016-1017. [DOI: 10.1016/j.wneu.2017.05.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 05/11/2017] [Indexed: 11/29/2022]
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