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Vidal JP, Rachita K, Servais A, Péran P, Pariente J, Bonneville F, Albucher JF, Danet L, Barbeau EJ. Exploring the impact of the interthalamic adhesion on human cognition: insights from healthy subjects and thalamic stroke patients. J Neurol 2024:10.1007/s00415-024-12566-z. [PMID: 39017701 DOI: 10.1007/s00415-024-12566-z] [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: 02/28/2024] [Revised: 06/27/2024] [Accepted: 07/05/2024] [Indexed: 07/18/2024]
Abstract
The interthalamic adhesion (IA) is a structure that connects the median borders of both thalami. Its anatomical variants and functions remain poorly studied. The main objective of this study was to explore the role of the IA on cognition. 42 healthy subjects and 40 patients with chronic isolated thalamic strokes underwent a neuroimaging and a neuropsychological assessment. The presence, absence, or lesion of the IA and its anatomical variants were evaluated. 76% of participants had an IA, with a higher prevalence among women (92%) than men (61%). The presence or absence of an IA did not affect the neuropsychological performance of healthy subjects nor did the type of IA variant. Across all the tests and when compared to healthy subjects using a Bayesian rmANOVA, patients exhibiting more cognitive impairments were those without an IA (n = 10, BF10 = 10,648), while those with an IA were more preserved (n = 18, BF10 = 157). More specifically, patients without an IA performed more poorly in verbal memory or the Stroop task versus healthy subjects. This was not explained by age, laterality of the infarct, volume or localization of the lesion. Patients with a lesioned IA (n = 12) presented a similar trend to patients without an IA, which could however be explained by a greater volume of lesions. The IA does not appear to play a major role in cognition in healthy subjects, but could play a compensatory role in patients with thalamic lesions.
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Affiliation(s)
- Julie P Vidal
- CerCo (Brain and Cognition Research Center), CNRS, Paul Sabatier University, Toulouse, France.
- ToNiC (Toulouse NeuroImaging Center), INSERM, Paul Sabatier University, Toulouse, France.
| | - Kévin Rachita
- Neurology Department, Purpan Hospital, Toulouse University Hospital Center, Toulouse, France
| | - Anaïs Servais
- CerCo (Brain and Cognition Research Center), CNRS, Paul Sabatier University, Toulouse, France
| | - Patrice Péran
- ToNiC (Toulouse NeuroImaging Center), INSERM, Paul Sabatier University, Toulouse, France
| | - Jérémie Pariente
- ToNiC (Toulouse NeuroImaging Center), INSERM, Paul Sabatier University, Toulouse, France
- Neurology Department, Purpan Hospital, Toulouse University Hospital Center, Toulouse, France
| | - Fabrice Bonneville
- ToNiC (Toulouse NeuroImaging Center), INSERM, Paul Sabatier University, Toulouse, France
- Neurology Department, Purpan Hospital, Toulouse University Hospital Center, Toulouse, France
| | - Jean-François Albucher
- ToNiC (Toulouse NeuroImaging Center), INSERM, Paul Sabatier University, Toulouse, France
- Neurology Department, Purpan Hospital, Toulouse University Hospital Center, Toulouse, France
| | - Lola Danet
- ToNiC (Toulouse NeuroImaging Center), INSERM, Paul Sabatier University, Toulouse, France
- Neurology Department, Purpan Hospital, Toulouse University Hospital Center, Toulouse, France
| | - Emmanuel J Barbeau
- CerCo (Brain and Cognition Research Center), CNRS, Paul Sabatier University, Toulouse, France
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Beger O, Alpergin BC, Zaimoglu M, Orhan O, Kılınç MC, Unal S, Eray HA, Eroglu U. Massa intermedia in adults: incidence, dimension, location and clinical importance. Surg Radiol Anat 2024; 46:137-152. [PMID: 38191743 DOI: 10.1007/s00276-023-03274-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: 10/25/2023] [Accepted: 11/26/2023] [Indexed: 01/10/2024]
Abstract
PURPOSE This retrospective magnetic resonance imaging investigation aimed to obtain information related to the anatomy of the massa intermedia (MI) in an adult population. METHODS The work conducted on MRI views of 1058 (539 males and 519 females) healthy adult samples aged with 48.93 ± 17.63 years. Initially, the presence or absence of MI was noted, and then if present, its numbers and location in the third ventricle were recorded. Its horizontal (HDMI) and vertical (VDMI) diameters were measured on MRI views, while the cross-sectional area (CSAMI) was calculated using its diameters. RESULTS MI was missing in 2.6% (27 cases) of 1058 adult samples. Six subjects (0.6%) had a double MI. HDMI, VDMI and CSAMI were measured as 4.83 ± 1.01 mm, 4.86 ± 0.98 mm, and 19.11 ± 7.23 mm2, respectively. MI size did not show a significant alteration from 19 up to 49 years, but then its size distinctly decreased between 50 and 60 years. After age 60, MI dimension did not display an important change. MI was settled in the antero-superior quadrant in 929 cases (90.63% of 1025 subjects), in the postero-superior quadrant in 22 cases (2.15%), in the antero-inferior quadrant in 32 cases (3.12%), in the postero-inferior quadrant in 8 cases (0.78%), and in the central part in 34 cases (3.32%). CONCLUSIONS The size, position and incidence of MI were not affected by sex, and its position and incidence were not affected by adult age periods. In adults, MI size demonstrated a significant decrease in the middle age.
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Affiliation(s)
- Orhan Beger
- Faculty of Medicine, Department of Anatomy, Gaziantep University, Gaziantep, 27310, Turkey.
| | - Baran Can Alpergin
- Faculty of Medicine, Department of Neurosurgery, Ankara University, Ankara, Turkey
| | - Murat Zaimoglu
- Faculty of Medicine, Department of Neurosurgery, Ankara University, Ankara, Turkey
| | - Ozgur Orhan
- Faculty of Medicine, Department of Neurosurgery, Ankara University, Ankara, Turkey
| | - Mustafa Cemil Kılınç
- Çorum Erol Olçok Training and Research Hospital, Department of Neurosurgery, Hitit University, Çorum, Turkey
| | - Sena Unal
- Faculty of Medicine, Department of Radiology, Ankara University, Ankara, Turkey
| | - Halit Anil Eray
- Faculty of Medicine, Department of Neurosurgery, Ankara University, Ankara, Turkey
| | - Umit Eroglu
- Faculty of Medicine, Department of Neurosurgery, Ankara University, Ankara, Turkey
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Kılınç MC, Alpergin BC, Mete EB, Eroglu U, Beger O. Anatomic Features of the Interthalamic Adhesion in the Pediatric Population. World Neurosurg 2023; 180:e631-e643. [PMID: 37806519 DOI: 10.1016/j.wneu.2023.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 10/01/2023] [Indexed: 10/10/2023]
Abstract
OBJECTIVE The main goal of this retrospective study was to examine the morphology of the interthalamic adhesion (ITA) in normal children aged between 1 and 18 years. METHODS The study universe consisted of magnetic resonance images of 180 healthy pediatric subjects (age, 9.50 ± 5.20 years, sex, 90 girls and 90 boys). The cross-sectional area (CSA), vertical diameter (VD), and horizontal diameter (HD) of the ITA were measured and in addition, its location was noted. RESULTS HD, VD, and CSA of the ITA were measured as 8.47 ± 1.64 mm, 7.59 ± 1.57 mm, and 52.06 ± 18.51 mm2, respectively. HD did not change from infancy until postpubescence, but then significantly decreased (P < 0.001). VD increased up to early childhood but then did not alter until the end of prepubescence. After that period, it decreased in postpubescence (P < 0.001). CSA tended to decrease in an irregular pattern according to pediatric age periods (P < 0.001). The ITA was located at the anterosuperior quadrant in 138 individuals (76.70%), at the anteroinferior quadrant in 7 individuals (3.90%), and the center of the lateral wall of the third ventricle in 35 individuals (19.40%). Linear functions were calculated as y = 9.490-0.107 × age (years) for HD, y = 8.453-0.091 × age (years) for VD, and y = 63.559-1.211 × age (years) for CSA. CONCLUSIONS ITA size irregularly decreases with advancing age from 1 to 18 years. Our calculated linear functions, showing the growth dynamics of the ITA by pediatric ages, may be helpful in estimating its dimension.
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Affiliation(s)
- Mustafa Cemil Kılınç
- Department of Neurosurgery, Çorum Erol Olçok Training and Research Hospital, Hitit University, Çorum, Turkey
| | - Baran Can Alpergin
- Department of Neurosurgery, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Emre Bahir Mete
- Department of Neurosurgery, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Umit Eroglu
- Department of Neurosurgery, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Orhan Beger
- Department of Anatomy, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey.
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