Surgical and Radiologic Anatomy最新文献

{"title":"Normative measurements of the frontal nerve by magnetic resonance imaging in an Australia cohort.","authors":"Dinan Perera, Khizar Rana, Carmelo Caltabiano, Sandy Patel, Dinesh Selva","doi":"10.1007/s00276-025-03573-4","DOIUrl":"10.1007/s00276-025-03573-4","url":null,"abstract":"<p><strong>Purpose: </strong>To report the normative dimensions of the frontal nerve (FN) on fat-suppressed suppressed gadolinium (fs-gad) enhanced magnetic resonance imaging (MRI).</p><p><strong>Method: </strong>A retrospective cohort study of patients who underwent coronal fs-gad T1-weighted MRI. Orbits were excluded if there was unilateral or bilateral pathology of the FN or optic nerve sheath (ONS), incomplete MRI sequences, poor image quality or indiscernible FN on radiological assessment. The maximum diameter of the FN and ONS was measured.</p><p><strong>Results: </strong>The mean age of participants was 58 ± 16 years and 50% were females (n = 42). The mean normative measurements (mean ± standard deviation) on coronal T1-weighted imaging: optic nerve sheath, 5.08 ± 0.67mm. On coronal fs-gad T1-weighted imaging: frontal nerve, 0.74 ± 0.18mm. No significant differences were found between male or female participants in both the frontal nerve (p = 0.913) or optic nerve sheath (p = 0.646). There was no significant correlation between age and mean diameter of the frontal nerve (r = 0.14, p = 0.067) or optic nerve sheath (r = 0.075, p = 0.336). Additionally, no significant difference was identified between the mean diameter of the frontal nerve (p = 0.075) and optic nerve sheath (p = 0.120) across age groups. The mean frontal nerve to optic nerve sheath ratio was 0.15 ± 0.04.</p><p><strong>Conclusion: </strong>Normative dimensions of the FN may provide quantitative cut-offs that can aid the diagnosis of FN enlargement seen in instances such as IgG4-related ophthalmic disease (IgG4-ROD) and neoplastic perineural spread.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"69"},"PeriodicalIF":1.4,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11779769/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A rare, asymptomatic case of an extrahepatic portocaval shunt between the posterior aspect of the portal vein and the inferior vena cava.","authors":"Mei Kono, Masaaki Akahane, Naoki Yoshioka, Yuichiro Hirano, Yuji Ohizumi, Issei Fukuda, Shin Fujiwara, Taiga Ishiguro, Shigeru Kiryu","doi":"10.1007/s00276-025-03576-1","DOIUrl":"10.1007/s00276-025-03576-1","url":null,"abstract":"<p><strong>Purpose: </strong>We present the case of a rare extrahepatic portocaval shunt that resulted in communication of the portal vein and the inferior vena cava (IVC) at the level between two right renal veins that was incidentally diagnosed with contrast-enhanced computed tomography (CECT) in an asymptomatic patient.</p><p><strong>Methods: </strong>A woman in her sixties with abdominal pain and diarrhea of unclear origin underwent exploratory abdominal CECT.</p><p><strong>Results: </strong>The CECT incidentally revealed an extrahepatic portocaval shunt, whereby a vessel arising from the portal vein superior to the confluence of the superior mesenteric and splenic veins drained into the posterior aspect of the IVC between two right renal veins.</p><p><strong>Conclusion: </strong>The identified vessel was likely a remnant communication between the supra-subcardinal anastomosis and the primitive portal vein. This type of portocaval shunt is rare; although there are no reports of its asymptomatic presence in an adult, recognition thereof may help to identify the cause of symptoms related to hepatic encephalopathy or liver dysfunction. Such a shunt may also provide a minimally invasive approach to the portal vein in procedures that typically rely on access via the transhepatic route.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"63"},"PeriodicalIF":1.4,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143054026","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":"Functional MRI for stereoscopic vision analysis: an experimental design.","authors":"Irene Ollivier, Guillaume Koch, Brieg Dissaux, Philippe Clavert, Romuald Seizeur","doi":"10.1007/s00276-025-03583-2","DOIUrl":"https://doi.org/10.1007/s00276-025-03583-2","url":null,"abstract":"<p><strong>Purpose: </strong>The aim was to establish a functional MRI protocol for analyzing human stereoscopic vision in clinical practice. The feasibility was established in a cohort of 9 healthy subjects to determine the functional cortical areas responsible for virtually relief vision.</p><p><strong>Methods: </strong>Nine healthy right-handed subjects underwent orthoptic examination and functional MRI. The activation paradigms used were based on a block sequence with the projection of static and dynamic 2D and 3D test patterns during three experiments. The test patterns were projected through two separate eyepieces to create stereoscopic vision. SPM software was used for post-processing and data analysis.</p><p><strong>Results: </strong>Among the three different test patterns used, the second, which corresponded to a static high-relief image of a billiard, appeared to be significant for identifying cortical area activation during stereoscopy. In the group analysis, only areas V3A and V6 showed statistically significant activation. Individual analysis revealed activation of the rostral IPS and V5/MT+.</p><p><strong>Conclusion: </strong>More data is needed to determine the precise cortical area of activation for stereoscopy. This study proposes a useful and accessible method for functional MRI analysis of stereoscopy.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"67"},"PeriodicalIF":1.4,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143054028","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":"Morphometric analysis of the greater palatine foramen: a CBCT study in Portugal.","authors":"Tomás Martins, Vanessa Guedes, Eugénio Martins, Pedro Mesquita","doi":"10.1007/s00276-025-03566-3","DOIUrl":"10.1007/s00276-025-03566-3","url":null,"abstract":"<p><strong>Purpose: </strong>The greater palatine foramen (GPF) represents the inferior opening of the greater palatine canal and is located posterolaterally on both sides of the hard palate. The aim of this study is to morphometrically characterise the GPF and to determine its anatomical relationships in a Portuguese population.</p><p><strong>Methods: </strong>A retrospective study was performed based on the clinical records which included all permanent teeth erupted and a cone beam computed tomography (CBCT) of the entire maxilla. The diameters of the GPF and its distances to posterior nasal spine (PNS), posterior border of the hard palate (PBHP), anterior nasal spine (ANS), midline maxillary suture (MMS) and incisive foramen (IF) were measured. Its position in relation to molars and the shape and direction of opening towards the oral cavity were classified. Global descriptive and comparative analysis were conducted.</p><p><strong>Results: </strong>N = 100. Metric analysis (mean in millimetres): anteroposterior diameter 5.35, lateromedial diameter 2.24, GPF-PNS 16.26, GPF-PBHP 4.83, GPF-ANS 49.94, GPF-MMS 14.74, GPF-IF 35.18. Position in relation to molars (%): 0% anterior to 2nd molar, 3% opposite 2nd molar, 15% between 2nd and 3rd molars, 77% opposite 3rd molar, 5% distal to 3rd molar. Shape (%): oval 71%, slit 26%, round 1%, other 2%. Metric variables were higher in males than in females (95% CI). There were no differences between genders for categorical variables or between sides for any variable (95% CI).</p><p><strong>Conclusion: </strong>The most common shape of the GPF is oval and its most common position is opposite the 3rd molar.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"64"},"PeriodicalIF":1.4,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11775037/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143054030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling pterion variability: a meta-analytic approach to enhance neurosurgical precision.","authors":"George Triantafyllou, Nektaria Karangeli, Fabrice Duparc, Maria Piagkou, Renato Galzio, George Tsakotos, George Botis, Theodosis Kalamatianos, Sabino Luzzi","doi":"10.1007/s00276-025-03571-6","DOIUrl":"10.1007/s00276-025-03571-6","url":null,"abstract":"<p><strong>Purpose: </strong>This meta-analytical systematic review aims at investigating the variability of the pterion, focusing on its morphological types and precise distances from various bony landmarks. Additionally, the neurosurgical significance of this critical cranial landmark is examined in depth.</p><p><strong>Methods: </strong>The systematic review was conducted following PRISMA 2020 and Evidence-based Anatomy Workgroup guidelines for anatomical studies. The risk of bias was assessed using the Anatomical Quality Assurance Tool (AQUA). The meta-analysis was performed using R programming software and RStudio, employing the \"meta\" and \"metafor\" packages.</p><p><strong>Results: </strong>A total of 79 studies were included, encompassing 18,694 skull sides. The sphenoparietal type was identified as the most prevalent pterion variant, with a pooled prevalence of 78.54%. The epipteric type followed at 8.41%, while the frontotemporal (5.74%) and stellate (4.26%) types were the rarest. Significant differences in the prevalence of the epipteric, frontotemporal, and stellate types were observed across different nationalities. However, sex, side, and study type did not significantly influence pterion morphological variation. The study also extracted and calculated the distances between the pterion and key anatomical landmarks, including the midpoint of the zygomatic arch, the frontozygomatic suture, the mastoid process, and the external acoustic meatus.</p><p><strong>Conclusion: </strong>This study offers critical anatomical insights by accurately mapping the pterion's location relative to essential cranial landmarks. These findings are vital for neurosurgical planning, particularly for procedures involving the anterior and middle cranial fossae. The detailed anatomical data provided can enhance the precision and safety of neurosurgical interventions, ultimately improving patient outcomes.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"66"},"PeriodicalIF":1.4,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11775020/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143054047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The anatomy of the anterior division of the internal iliac artery: a computed tomography angiography analysis with implications for surgical and endovascular procedures.","authors":"Paweł Hajdyła, Michał Bonczar, Patryk Ostrowski, Jakub Gliwa, Ameen Nasser, Kyrylo Shafarenko, Wadim Wojciechowski, Jerzy Walocha, Mateusz Koziej","doi":"10.1007/s00276-025-03575-2","DOIUrl":"https://doi.org/10.1007/s00276-025-03575-2","url":null,"abstract":"<p><strong>Introduction: </strong>The anterior division of the internal iliac artery (ADIIA) is a crucial vascular structure that supplies blood to the pelvic organs, perineum, and gluteal region. The present study demonstrates practical data concerning the anatomy of the ADIIA and its branches. It is hoped that the results of the current study may aid in localizing the pelvic arteries effectively.</p><p><strong>Methods: </strong>The present study is a retrospective analysis that was carried out to determine the anatomical variations, prevalence, and morphometric data of the ADIIA and its branches. Ultimately, 148 ADIIAs from 73 patients met the necessary criteria and were evaluated in 45 categories.</p><p><strong>Results: </strong>The most prevalent branch of the ADIIA was found to be the internal pudendal artery, as it was present in 134 of the studied cases (90.5%). The most common first branch of the ADIIA was found to be the umbilical artery (48.5%), whereas the most common last branch of the ADIIA was found to be the inferior gluteal artery (68.4%). The median distance between the origin of the ADIIA and the origin of the uterine artery was found to be 12.00 mm (LQ = 7.49; HQ = 18.63). The median diameter of the ADIIA at its origin was found to be 5.76 mm (LQ = 4.80; HQ = 6.45), whereas the median cross-sectional area at the same point was set to be 24.77 mm2 (LQ = 17.65; HQ = 31.95).</p><p><strong>Conclusion: </strong>It is hoped that the results of the present study will assist in the localization of the branches of the ADIIA in cases of pelvic hemorrhage and during various pelvic surgeries, including laparoscopic hysterectomies.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"68"},"PeriodicalIF":1.4,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143054035","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":"Short common trunk of the occipital artery and ascending pharyngeal artery arising from the internal carotid artery diagnosed by magnetic resonance angiography.","authors":"Akira Uchino, Nobusuke Tsuzuki","doi":"10.1007/s00276-025-03577-0","DOIUrl":"10.1007/s00276-025-03577-0","url":null,"abstract":"<p><strong>Purpose: </strong>To describe a case of short common trunk of the occipital artery (OA) and ascending pharyngeal artery (APA) arising from the internal carotid artery (ICA).</p><p><strong>Methods: </strong>A 36-year-old woman with a history of surgical resection of a right lateral ventricular meningioma and atheromatous plaque of the right ICA underwent cranial magnetic resonance (MR) imaging and MR angiography of the head and neck region with a 3-Tesla scanner.</p><p><strong>Results: </strong>MR angiography of the neck region showed a small atheromatous plaque at the origin of the right ICA and an anomalous artery arising from the posteromedial aspect of the right ICA at the distal end of the carotid bulb. After creating partial volume-rendering (VR) images of the right carotid system, a short common trunk of the OA and APA arising from the ICA were clearly identified.</p><p><strong>Conclusion: </strong>Using MR angiography, we report a case of a short common trunk of the OA and APA arising from the ICA. OA rarely arises from the ICA, while APA sometimes arises from both the ICA and the OA. APA arising from the OA can be regarded as having a long common trunk of the OA and APA. Only one case of a short common trunk has previously been reported using catheter angiography. This is the second case of this variation reported in the relevant English-language literature. Partial VR MR angiography images are useful for identifying small anomalous arteries located beside a large artery.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"65"},"PeriodicalIF":1.4,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143054032","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":"Novel anatomical variations of the internal thoracic artery: implications for coronary artery bypass grafting surgery and autologous breast reconstruction.","authors":"Abigail E Cowher, Brooke E Bertus, H Wayne Lambert, Matthew J Zdilla","doi":"10.1007/s00276-025-03574-3","DOIUrl":"https://doi.org/10.1007/s00276-025-03574-3","url":null,"abstract":"<p><p>The unique structure and location of the internal thoracic artery make it an ideal conduit for coronary artery bypass grafting surgery and autologous breast reconstruction. Variants with different characteristics have the potential to impact surgical success. This report presents a female body donor with a novel bilateral variation of the internal thoracic artery. The vessel arose from third segment of the subclavian artery, distal to it coursing deep to the anterior scalene muscle, and then proceeded to course anterior to the first rib, instead of posteriorly. This variation could detract from the desirability of the internal thoracic artery as a graft. Tractioning the artery over the first rib may render it too stenotic for surgical utility. In an individual who has undergone autologous breast reconstruction, this variation may prohibit adequate length preservation for use in subsequent coronary artery bypass grafting. Also, in the setting of thoracic outlet syndrome, this arterial variation may cause unforeseen complications post-grafting.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"62"},"PeriodicalIF":1.4,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143034713","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":"Accessory posterior cerebral artery as a duplicate anterior choroidal artery.","authors":"Hideki Endo, Hidetoshi Ono, Toshiichi Watanabe, Keiji Hara, Yohei Yamaguchi, Yasuyuki Tatsuta, Hirohiko Nakamura","doi":"10.1007/s00276-024-03561-0","DOIUrl":"https://doi.org/10.1007/s00276-024-03561-0","url":null,"abstract":"<p><strong>Purpose: </strong>Anatomical variations in the anterior choroidal artery (AChA) and/or the posterior cerebral artery (PCA) are rare. Hyperplastic AChA is an anatomical variant supplying both the AChA area and the PCA area. In accessory PCA, a hyperplastic AChA supplies part of the PCA territory. To our knowledge, there are no previous reports of accessory PCA associated with duplicated AChAs.</p><p><strong>Methods: </strong>We report a case of accessory PCA as a duplicated AChA associated with contralateral accessory middle cerebral artery, diagnosed by digital subtraction angiography.</p><p><strong>Results: </strong>A 34-year-old man visited our hospital because of headache and neck pain. Magnetic resonance imaging showed flow voids around the left medial temporal lobe. Magnetic resonance angiography showed vascular structures in the left PCA. Left internal carotid angiography revealed the accessory PCA supplying not only the AChA (plexal segment) territory but also part of the PCA (anterior and posterior temporal arteries) territory. Three-dimensional rotational angiography revealed a tiny branch proximal to accessory PCA. Careful assessment revealed that the tiny branch perfused the left AChA (cisternal segment) territory. Therefore, we made a diagnosis of duplicated AChAs. Right internal carotid angiography also showed the accessory middle cerebral artery originating from the anterior cerebral artery (proximal A1 segment).</p><p><strong>Conclusion: </strong>Careful imaging assessment is important to identify the rare anatomical variations seen in this case, in which three-dimensional rotational angiography was useful and provided a better understanding of the vascular structure, including tiny vessels.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"61"},"PeriodicalIF":1.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143014962","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":"Discriminating between the maxillary tuberosity and the alveolar tuberosity- a critical pictorial review.","authors":"Carol Antonio Dandoczi, Mugurel Constantin Rusu, Alexandru Nicolae Mureşan, Răzvan Costin Tudose","doi":"10.1007/s00276-025-03569-0","DOIUrl":"10.1007/s00276-025-03569-0","url":null,"abstract":"<p><strong>Purpose: </strong>The maxillary tuberosity, a critical anatomical landmark in dentistry and maxillofacial surgery, is burdened by terminological confusion. This inconsistency hampers clinical practice and communication across disciplines.</p><p><strong>Method: </strong>Different resources were used to argue for the necessity of standardising the terminology related to maxillary tuberosity to enhance diagnostic precision and ultimately improve patient outcomes.</p><p><strong>Results: </strong>Most clinical and surgical studies dealing with the distal alveolar bone of the maxilla erroneously indicate it as \"maxillary tuberosity\". By recognising the diverse definitions of this structure, errors and misinterpretation of studies could be reduced, and interdisciplinary collaboration could be improved. The term \"alveolar tuberosity\" is recommended to refer specifically to the distal end of the alveolar process of the maxilla. Anatomically, the maxillary tuberosity belongs to the body of the maxilla and forms part of the posterior wall of the maxillary sinus; therefore, it should not be located in the alveolar process.</p><p><strong>Conclusion: </strong>Adhering to the Terminologia Anatomica will clarify the critical clinical and surgical landmarks and enhance communication in clinical and academic settings.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"60"},"PeriodicalIF":1.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11754339/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143014981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}