Mental Foramen ve Aksesuar Mental Foramenin Manyetik Rezonans Görüntüleme ile Retrospektif Değerlendirilmesi

AMAÇ: Bu çalışmanın amacı, Manyetik Rezonans Görüntüleme (MRG) yöntemi kullanarak aksesuar mental foramina (AMF) görülme sıklığını ve anatomik özelliklerini saptamaktır. GEREÇ VE YÖNTEM: Toplam 40 hastaya ait, sağ ve sol olmak üzere koronal, sagittal, aksiyal eksenlerde (n=80) mental foramenin (MF) morfolojik özellikleri değerlendirildi. MF çapı ölçülerek, gözlenen AMF varyasyonları kaydedildi. BULGULAR: Çalışma yaşları 10 ile 75 arasında değişmekte olan, 27’si (%67.5) kadın ve 13’ü (%32.5) erkek olmak üzere 40 olgunun sağ ve sol toplam 80 tarafı ile yapılmıştır. Yaş ortalaması 40.60±18.57 yıldır. Mental foramenlerin 75’inde (%93.8) herhangi bir anatomik varyasyon izlenemezken, 5’inde (%6.3) aksesuar mental foramen gözlenmiştir. Sekans dağılımları %52.5’i T1, %16.3’ü T2 ve %31.3’ü T3’tür. SONUÇ: MRG invaziv olmayan, radyasyon içermeyen bir yumuşak doku görüntüleme yöntemidir. Baş-boyun bölgesine ait nörovasküler dokuların ve bunların anatomik varyasyonlarının değerlendirilmesinde kullanılabilecek yardımcı bir görüntüleme tekniğidir. İşlem öncesi planlamada diş hekimleri, kemik görüntüleme yöntemlerinin yetersiz kaldığı durumlarda baş-boyun bölgesine ait yumuşak dokuların değerlendirilmesinde MRG kullanabilir.

Anahtar Kelimeler:

aksesuar mental foramina, manyetik rezonans görüntüleme, mental foramen, nörovasküler görüntüleme

Evaluation of Mental Foramen and Accessory Mental Foramen in Retrospective Magnetic Resonance Images

OBJECTIVES: To determine the prevalence and anatomical features of mental foramen and accessory mental foraminas (AMFs) with Magnetic Resonance Imaging (MRI) method. MATERIALS AND METHODS: A total of 40 patients’ 3.0-Tesla Turbo Spin Echo (3T TSE) MRI sequences were evaluated in both right and left coronal, sagittal, axial sections (n=80) to determine the morphological features of mental foramen (MF). Diameter of MF was measured and presence AMFs were recorded. RESULTS: The study was conducted with a total of 80 right and left sides of 40 subjects, 27 (67.5%) female and 13 (32.5%) male. The mean age was 40.60±18.57 years. AMFs was observed in 75 (93.8%) of the evaluated mental foramens. Accessory mental foramen variation was observed in five of them (6.3%). MRI 3T TSE sequence distributions were 52.5% T1w, 16.3% T2w and 31.3% PD. CONCLUSIONS: MRI is a non-invasive, radiation-free soft tissue imaging method. It is an auxiliary imaging technique that can be used in the evaluation of neurovascular tissues of the head and neck region and their anatomical variations. In pre-operative planning, clinicians can use MRI in the evaluation of soft tissues of the head and neck region in cases where bone imaging methods are insufficient.

Keywords:

accessory mental foramina, magnetic resonance imaging, mental foramen, neurovascular imaging,

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