Assessment of Normal Perisellar Anatomy in 1.5 T T2-weighted MRI and Comparison with the Anatomic Criteria defining Cavernous Sinus Invasion of Pituitary Adenomas

Knappe, Ulrich J.; Jaursch-Hancke, Cornelia; Schönmayr, R.; Lörcher, U.

doi:10.1055/s-0029-1216363

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…Sasagawa et al 5 , were the only relating grade of resection with ICD. In their study gross total or subtotal resection was less achieved in patients with ICD lower than 25 mm, however, the aforementioned distance is still higher than the mean ICD found in ours and other studies, so we do not recommend that measurement as an obstacle to tumor resection 1,3,4,5,6,22,23,25,27,28,29 . In conclusion, apparently the ICD at the horizontal segment of the cavernous carotid tends to be wider in patients with giant pituitary adenomas.…”

Section: A B C Dcontrasting

confidence: 78%

“…The mean values for the intercarotid distance at the selar region in healthy individuals reported in the literature have a wide range, varying from 12 mm to 18 mm 1,3,4,6,22,23,25,27,28,29 , what we believe to be related to the method used to measure the distance and the ethnical differences between the study populations. In our study, the mean intercarotid distance at its horizontal portion at the sellar region (ICD2) in the controls group was 19.41 ± 3.00 mm, a difference probably attributable to the same reasons they differ in another studies.…”

Section: Discussionmentioning

confidence: 79%

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Pituitary macroadenoma: analysis of intercarotid artery distance compared to controls

Nunes¹,

Cabral²,

Mello³

et al. 2016

Arq. Neuro-Psiquiatr.

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Despite all the improvement in transsphenoidal surgery, the anatomical knowledge has been a main issue stressed by most authors 1 . In the transsphenoidal approach for pituitary adenomas, detailed preoperative planning with information regarding the sphenoid sinus, tumoral involvement of adjacent structures (cavernous sinus, suprasellar region, carotid arteries) and intercarotid distance (ICD) is critical. Despite that, there is little literature regarding the ICD at the parassellar region of the intracranial carotid arteries at its cavernous segment and its modifications due to the sellar pathologies, specially non-functioning pituitary adenomas 2,3,4,5,6 .Although vascular injuries have become less frequent over the years, with reports ranging from 0-3.8% 7,8,9,10,11,12,13,14,15,16,17,18,19,20 , it is still considered one of the most important complications in the transsphenoidal approaches due to its potential hazardous effects and difficult management. Taking this into consideration, it is crucial that every surgeon knows exactly the carotid artery position and its relation to the lesion.This study has the aim to measure and analyze ICD in a series of patients with non-functioning pituitary adenomas with no previous treatment and correlate the data with measurements in controls with no endocrinological, sellar or parassellar disease. AbstrACtObjective: To evaluate the intercarotid distance (ICD) of patients with pituitary macroadenoma and compare to heatlhy controls. Method: We retrospectively reviewed contrast-enhanced MRI images from twenty consecutive patients diagnosed with non-functioning pituitary macroadenoma, measured the ICD at two different levels (petrous segment -ICD1 and horizontal cavernous segment -ICD2) and compared to twenty paired controls. Results: There was no statistically significant difference of the mean ICD1 between the groups and subgroups. For the ICD2 there was statistically significant difference between the case and controls. However, there was no significant difference between the patients with smaller adenomas and the controls. In contrast, the patients with giant adenomas showed statistically significantly higher ICD2 than the controls. Conclusion: The ICD at the horizontal segment of the cavernous carotid tends to be wider in patients with giant pituitary adenomas than in healthy individuals or patients with smaller adenomas.Keywords: Pituitary gland; pituitary disease; internal carotid artery; endoscopy; sella turcica. resumo Objetivo: Avaliar a distância intercarotídea (DIC) de pacientes com macroadenoma de hipófise e comparar com controles saudáveis. Método: Foram analisados retrospectivamente imagens de ressonância magnética com contraste de vinte pacientes consecutivos com diagnóstico de macroadenoma hipofisário não-funcionante, medidas as DIC em dois níveis diferentes (segmento petroso -DIC1 e segmento cavernoso horizontal -DIC2) e comparados com vinte controles pareados. Resultados: Não houve diferença estatisticamente significativa da DIC1 média entre os grupos e su...

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Section: A B C Dcontrasting

confidence: 78%

Section: Discussionmentioning

confidence: 79%

Pituitary macroadenoma: analysis of intercarotid artery distance compared to controls

Nunes¹,

Cabral²,

Mello³

et al. 2016

Arq. Neuro-Psiquiatr.

View full text Add to dashboard Cite

show abstract

“…For this reason the MWCS appears as a hypointense line running between the hyperintense CS and tumor/normal tissue in coronal images. In the present study, PDWI detected all MWCSs, whereas T2-weighted images were reported to detect only 33% of the MWCSs [19]. To increase the signal-to-noise ratio and reduce scanning time, our image resolution was sacrificed by reducing it from 512 × 512 pixels to 403 × 448 pixels, which was still acceptable and corresponded to a change in image pixels from 0.35 mm to 0.40 mm.…”

Section: Discussionmentioning

confidence: 56%

Magnetic resonance imaging appearance of the medial wall of the cavernous sinus for the assessment of cavernous sinus invasion by pituitary adenomas

Cao

Chen

Jiang

et al. 2013

Journal of Neuroradiology

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Radiologic Imaging Techniques in Cushing’s Disease

Rapalino

Schaefer

2011

Cushing's Disease

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Assessment of Normal Perisellar Anatomy in 1.5 T T2-weighted MRI and Comparison with the Anatomic Criteria defining Cavernous Sinus Invasion of Pituitary Adenomas

Abstract: Inter- and intra-individual variations of the perisellar anatomy and its relation to the pituitary gland exist, which are partly related to age and AH. This must be remembered when the invasiveness of pituitary adenomas is assessed in MRI.

Cited by 6 publications

References 23 publications

Pituitary macroadenoma: analysis of intercarotid artery distance compared to controls

Pituitary macroadenoma: analysis of intercarotid artery distance compared to controls

Magnetic resonance imaging appearance of the medial wall of the cavernous sinus for the assessment of cavernous sinus invasion by pituitary adenomas

Radiologic Imaging Techniques in Cushing’s Disease

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