Surgical and Radiologic Anatomy最新文献

{"title":"Accessory middle cerebral artery of distal origin associated with an anterior communicating artery duplication that mimicked an aneurysm.","authors":"Hideki Endo, Hidetoshi Ono, Hirohiko Nakamura","doi":"10.1007/s00276-024-03542-3","DOIUrl":"https://doi.org/10.1007/s00276-024-03542-3","url":null,"abstract":"<p><strong>Purpose: </strong>Although both accessory middle cerebral artery (MCA) of distal origin and anterior communicating artery (ACoA) duplication are not rare anatomical variations, their combination is extremely rare and there are only a few reports of such combinations.</p><p><strong>Methods: </strong>We report a case of distal origin accessory MCA associated with ACoA duplication diagnosed by magnetic resonance angiography (MRA).</p><p><strong>Results: </strong>A 63-year-old man visited another hospital for screening examinations for cerebrovascular disease. He was noted to have a possible intracranial aneurysm at the A1-A2 junction of the right anterior cerebral artery on MRA. He was referred to our hospital for its management. More detailed 3-Tesla MRA volume rendering images revealed ACoA duplication, not an aneurysm. MRA also showed the right distal origin accessory MCA arising from the A2 segment distal to the ACoA duplication.</p><p><strong>Conclusion: </strong>This rare combination of anatomical variations requires careful imaging assessment. MRA volume rendering images were useful in our case.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"39"},"PeriodicalIF":1.4,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Foramen tympanicum: tomographic study of a large cohort of Europeans.","authors":"V Rabuel, A Pelissier, L Essid, K Guillen, N Zwetyenga, N Cheynel, D Guillier","doi":"10.1007/s00276-024-03545-0","DOIUrl":"10.1007/s00276-024-03545-0","url":null,"abstract":"<p><strong>Purpose: </strong>The foramen tympanicum (FT) is an anatomical variation of the tympanic part of the temporal bone located in the anteroinferior part of the external auditory pore (EAP) and posteromedial to the temporomandibular joint (TMJ). The FT is most often asymptomatic, but it can be symptomatic in rare cases. The prevalence of FT varies widely in the literature. The aim of our study was to determine the radiological prevalence in a European population.</p><p><strong>Methods: </strong>We retrospectively analyzed the presence of FT in all patients who underwent brain or rock scans from January 2021 to July 2022 in University Hospital. Demographic characteristics such as age and gender were collected. Morphometric measurements on the FT were also carried out manually: axial, sagittal and area calculation. Binomial test, Pearson's Chi2 test or Student's T test were carried out according to the type of analysis.</p><p><strong>Results: </strong>A total of 2040 patients were included. 145 patients with FT were identified, giving a prevalence of 7.11%. FT were unilateral in 39% and bilateral in 61% of cases (p = 0.008). Women were statistically more likely to have one (p = 0.00002). Higher age was correlated with an increase in the prevalence of FT (p = 0.03). The morphometric measurements did not reveal any differences depending on the side.</p><p><strong>Conclusion: </strong>This study is the largest series of Computed Tomography (CT) scans on the prevalence of foramen tympanicum. Although rare, every surgeon must keep in mind this anatomical entity to limit the risk during a surgical procedure.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"38"},"PeriodicalIF":1.4,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142866078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A case report of rare variant: well-developed paracondylar process.","authors":"Kaan Çimen","doi":"10.1007/s00276-024-03552-1","DOIUrl":"https://doi.org/10.1007/s00276-024-03552-1","url":null,"abstract":"<p><strong>Purpose: </strong>The paracondylar process (PCP) is defined as the bony prominence extending from the outer side of the condyles on the outer surface of the occipital bone downwards towards the transverse process of the atlas (TPA). In this case report, the morphometry of the rarely seen PCP and its morphometric data with neighboring structures are evaluated.</p><p><strong>Case report and results: </strong>Unilateral (right-sided) PCP was observed in the cranium of a Caucasian female. The base of the PCP, located on the outer side of the occipital condyle (OC) and just behind the jugular foramen (JF), was broader than its apex and had a molar shape. The base width was measured as 13.6, and the top width was measured as 8.7 mm. PCP length was measured at 15.2 mm. The base distance of the PCP, which was located very closely with the OC and JF, to these structures was measured as 0.42 and 0.59 mm, respectively. The distance to the spinous process (SP) and mastoid process (MP) of the temporal bone was relatively greater and was measured as 1.07 and 15.5 mm, respectively.</p><p><strong>Conclusions: </strong>The rare PCP reported, in this case, was well-developed and molar type. It is likely large enough to articulate with the TPA regarding length. However, this could not be shown because the matched atlas could not be found. We believe that supporting the close adjacencies of PCP with OC and JF with metric data may benefit clinicians working in regional surgery.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"37"},"PeriodicalIF":1.4,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142856485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing residency training by addressing anatomical knowledge gaps through structured educational programs: a need assessment study in radio diagnosis residents.","authors":"Pradosh Kumar Sarangi, Ravi Kant Narayan, Sanjay Purushothama, Ashutosh Kumar, Adil Asghar, Prem Kumar, Braja Behari Panda","doi":"10.1007/s00276-024-03541-4","DOIUrl":"https://doi.org/10.1007/s00276-024-03541-4","url":null,"abstract":"<p><strong>Introduction: </strong>The evolving curricula in medical education have significantly reduced the time allocated for learning and clinically correlating anatomical facts. This has led to noticeable gaps in the anatomical knowledge observed by specialists while training junior residents and is being extensively documented in the literature.</p><p><strong>Materials and methods: </strong>The descriptive, cross-sectional, questionnaire-based study was conducted online by sharing the questionnaire via e-mail, WhatsApp, and Telegram to institutes across all Indian states and union territories where postgraduate radiodiagnosis courses are offered.</p><p><strong>Results: </strong>The survey had a predominant response from radiodiagnosis residents belonging to the female gender (53.8%), pursuing MD (83.2%), from final year (43.4%), and from private (58%) institutes. 98% of the residents encountered challenges interpreting radiological images, 89% had no formal training in anatomy during residency, and 59% felt a lack of confidence regarding the human anatomy knowledge required for radiodiagnosis. 91.5% of the residents believe that a short human anatomy posting would significantly improve their radiological reporting skills, and 94% expressed interest in attending workshops or seminars to enhance their knowledge of human anatomy for radiological practice. A standardized curriculum for human anatomy training during the radiodiagnosis residency program is needed for the current period, as 90% of the respondents agreed.</p><p><strong>Conclusion: </strong>To bolster future radiologists' diagnostic acumen, an enhanced anatomical education within radiodiagnosis residency programs in India is indeed necessary. Implementing structured training programs, incorporating interactive workshops, and leveraging advanced technological tools can significantly bridge knowledge gaps among residents.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"36"},"PeriodicalIF":1.4,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heights of maxillary sinus and piriform aperture are valuable in sex prediction: a cone beam computed tomography study.","authors":"Caroline Cornelius, Francisco Carlos Groppo, Heraldo Luis Dias da Silveira, Isadora Luana Flores, Thiago Oliveira Gamba","doi":"10.1007/s00276-024-03539-y","DOIUrl":"https://doi.org/10.1007/s00276-024-03539-y","url":null,"abstract":"<p><strong>Purpose: </strong>This study utilized cone-beam computed tomography images to assess the potential of maxillary sinus (MS) and piriform aperture (PA) measurements in sex prediction and to identify possible correlations between these structures and the MS ostium.</p><p><strong>Methods: </strong>A total of 204 images were selected and divided into two groups: 102 for constructing and testing the formula, and 102 for validation. In each subgroup, the images were equally divided for 11 measurements by two examiners in the MS (height, width, length, and total width), PA (height and width), and maxillary ostium diameter.</p><p><strong>Results: </strong>Significant correlations were found in males and in the total analysis for all measurements of the right MS, while the length of the left MS showed a positive correlation with PA height. In the total analysis, the height of the left MS and the total width along the MS also positively correlated with PA height. When tested, the constructed formula resulted in an accuracy of 82.4%.</p><p><strong>Conclusion: </strong>Tomographic images proved to be excellent tools for sex prediction, as the measurements described in this study could be reproduced and analyzed in different populations, considering that craniometric characteristics may vary across populations.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"34"},"PeriodicalIF":1.4,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differential linea alba width in pediatric umbilical hernias: a comparative analysis.","authors":"Yuta Nakajima, Shoji Kondoh, Shunsuke Yuzuriha, Yoshito Mishima, Naoki Abe","doi":"10.1007/s00276-024-03540-5","DOIUrl":"https://doi.org/10.1007/s00276-024-03540-5","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to investigate the relationship between linea alba width and unclosed pediatric umbilical hernias.</p><p><strong>Methods: </strong>A retrospective chart review was conducted on patients with pediatric umbilical hernias persisting beyond the age of 2, from April 2014 to March 2021. Additionally, data from children who underwent computed tomography (CT) for other conditions or injuries, such as diarrhea or traffic accidents, were collected from April 2010 to March 2022. The width of the linea alba was measured using ultrasonography in pediatric hernia patients and CT in children without umbilical hernias. Measurements were taken at five levels on the axial plane: at the level of the umbilicus and 1.5 cm and 3 cm above and below the umbilicus.</p><p><strong>Results: </strong>The analysis included 191 children without hernias and 30 patients with unclosed hernias, all aged between 2 and 7 years. The linea alba width was significantly wider in children with unclosed hernias than in children without hernias at all five measurement points (p < 0.05). The disparity was more pronounced below the umbilicus. However, no significant differences in width were observed across different age groups among children without hernias.</p><p><strong>Conclusion: </strong>Children with umbilical hernias exhibited wider linea albae. It is hoped that these results will contribute to modifications in surgical techniques and enhance understanding of the pathophysiology in patients with umbilical hernias.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"35"},"PeriodicalIF":1.4,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uterine artery projection relative to anatomical bony landmarks in CT-angiographies.","authors":"Alexandre Mallard, Maxime Bonjour, Laurent Milot, Anthony Viste, Nicolas Stacoffe, François Cotton","doi":"10.1007/s00276-024-03535-2","DOIUrl":"10.1007/s00276-024-03535-2","url":null,"abstract":"<p><strong>Purpose: </strong>The aim was to find bony landmarks of the pelvis for the origins and routes of uterine arteries, hoping to improve speed and safety of embolization procedures (leiomyoma, post-partum bleedings…).</p><p><strong>Methods: </strong>We carried out a study based on the analysis of CT-angiographies in arterial phases of whole-body scans. Two measurements were done per artery, one from the origin of uterine arteries to a first perpendicular line passing through the lowest part of the sacroiliac joint, another one from the beginning of the parametrial segment from a second parallel line passing by the acetabular roof. Mean distances across all these measurements were calculated, as were potential associations with known variables such as anatomical variants, age, parity and any pelvic surgical history.</p><p><strong>Results: </strong>Two hundred uterine arteries were analyzed. Concerning the origin, 83.5% of uterine arteries were located approximately one centimeter around the first line defined above, with a mean distance of + 4.8 mm. Concerning parametrial segment beginning, 88% were located approximately one centimeter around the second line defined, with a mean distance of only + 3.9 mm above the acetabular roof. Some significant differences were observed in subgroups, notably with a small trend to higher arising of uterine arteries in patients who had at least one childbirth, and expectedly lower arising in distal anatomical variants.</p><p><strong>Conclusion: </strong>Clear pelvic anatomic landmarks exist and could help the guidance of arteries catheterization, and therefore indirectly lead to faster embolization and optimize procedures safety.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"32"},"PeriodicalIF":1.4,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142830559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ChatGPT efficacy for answering musculoskeletal anatomy questions: a study evaluating quality and consistency between raters and timepoints: correspondence.","authors":"Mohammad Ajwad Al Salkhadi, Asham Al Salkhadi","doi":"10.1007/s00276-024-03549-w","DOIUrl":"10.1007/s00276-024-03549-w","url":null,"abstract":"<p><p>The article \"ChatGPT Efficacy for Answering Musculoskeletal Anatomy Questions: A Study Evaluating Quality and Consistency between Raters and Timepoints\" assesses the performance of ChatGPT 3.5 in answering musculoskeletal anatomy questions, highlighting variability in response quality and reproducibility. We raise several points that may add further insights into the study's findings. While ChatGPT and other Large Language Models (LLMs) show promise in medical education, several areas require further exploration. We emphasize the importance of using larger question sets and diverse formats, such as multiple-choice questions (MCQs), where ChatGPT has demonstrated more consistent performance in prior studies. Additionally, improvements in artificial intelligence (AI) models and the incorporation of updated anatomical databases could enhance response accuracy. The study also identifies ChatGPT's lack of anatomical specificity as a limitation, which may be addressed by training AI models on specialized anatomy datasets. In conclusion, while ChatGPT is not yet a fully reliable standalone resource, it might serve as a complementary tool when integrated with traditional methods. Further research is needed to optimize AI for anatomy education.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"33"},"PeriodicalIF":1.4,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142830557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of hyoid bone position, shape, area, volume, and tongue volume.","authors":"Nihal Gurlek Celik, Mehtap Oktay","doi":"10.1007/s00276-024-03538-z","DOIUrl":"https://doi.org/10.1007/s00276-024-03538-z","url":null,"abstract":"<p><strong>Purpose: </strong>Our study aims to determine the position and types of the hyoid bone and to evaluate the morphometry of the hyoid bone and tongue according to sex.</p><p><strong>Methods: </strong>Our study included cervical Computed Tomography (CT) images of 200 individuals (100 females, 100 males) between the ages of 18 and 84. Using the 3D Slicer software package, hyoid bone position, shape, area, volume and tongue volume measurements were made on these images.</p><p><strong>Results: </strong>In our study, the position of the hyoid bone was found to be proportionally at the C3 vertebral level in both sexes. The most common hyoid bone was type B, while the least common was type V. Type B rate was statistically higher in females, and type H rate was higher in males (p < 0.05). Participants with type H had statistically higher bone volumes and areas than those with type B (p < 0.05). Differences between bone volumes and areas of other bone types were not statistically significant (p > 0.05). Average hyoid bone volume (females 1575.9 mm³; males 2609.6 mm³), hyoid bone area (females 1519.8 mm²; males 2406.4 mm²), tongue volume (females 66,659.5 mm³; males 83,085.5 mm³) were measured in females and males. A statistically weak negative correlation was found between the participants' ages and hyoid bone areas (rho = -0.162; p = 0.022). A statistically moderate positive correlation was found between tongue volume and hyoid bone volume/area (respectively p < 0.001; rho₁ = 0.658, rho₂ = 0.546).</p><p><strong>Conclusion: </strong>Hyoid bone volume, hyoid bone area and tongue volume were higher in males than females. As tongue volume increased, hyoid bone volume and hyoid bone area increased. The connection between tongue volume and hyoid bone volume will contribute to dentomaxillary development and surgical procedures, and bone morphology will also be important in different disciplines.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"30"},"PeriodicalIF":1.4,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142819683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The bilateral persistent sciatic vein: a rare and clinically meaningful lower limb variant.","authors":"Maria Piagkou, George Triantafyllou, Ioannis Antonopoulos, Alexandra-Regina Tsantili, George Tsakotos, Theodore Troupis","doi":"10.1007/s00276-024-03544-1","DOIUrl":"https://doi.org/10.1007/s00276-024-03544-1","url":null,"abstract":"<p><strong>Background: </strong>The lower limb venous system, a subject of extensive study due to its high clinical significance on deep vein thrombosis, presents a rare, intriguing, symmetrical variant in this dissection report.</p><p><strong>Case report: </strong>We present the uncommon and clinically meaningful bilateral persistent sciatic vein (PSV) variant. The developmental variant was symmetrically detected during a dissection of an 81-year-old female donated cadaver. The symmetrical PSV originated from the popliteal vein (PV, merging of the anterior and posterior tibial vein), coursing through the abductor magnus muscle and draining into the common femoral vein after joining the femoral and greater saphenous vein. The enlarged PSV was the developmental variant at the saphenopopliteal junction, while the \"typical\" PV was hypoplastic as a regressed vessel.</p><p><strong>Conclusion: </strong>The typical PV was hypoplastic; the enlarged PSV was the lower limb's primitive axial vein that acted as the central (main) drainage vessel. After a thorough literature search, the PSV variant was recorded as having a low prevalence in the general population. The current dissection finding is relatively rare due to its symmetric occurrence. The rare variant is related to Klippel-Trenaunay Syndrome, a congenital vascular malformation. Clinicians must distinguish the primitive axial vein (PSV) from the transformed axial vein (pathology) to avoid complications and iatrogenic injury.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"31"},"PeriodicalIF":1.4,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142819684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}