Predictability of Fused 3D-T2-SPACE and 3D-TOF-MRA Images in Identifying Conflict in Trigeminal Neuralgia

Pham, Hong Duc; Dang, Thu Ha; Duong, Trung Kien; Dinh, Trung Thanh; Bui, Van Giang; Nguyen, Tuan Vu; Huynh, Quang Huy

doi:10.2147/jpr.s331054

Cited by 5 publications

(2 citation statements)

References 20 publications

(37 reference statements)

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“…Andrei Brînzeu [ 28 ] even found 3D-MR imaging could definite 97% of NVC. Similar results could also be reached with 3D-SPACE, Hong Duc Pham et al [ 29 ] found that fused 3D-T2-SPACE plus 3D-TOF MR angiography imaging was an effectively tools for treatment planning of TN, the SR of NVC evaluation could reach 94%. Here, we make a brief summary of the advantages and disadvantages of different MR sequences in the display of trigeminal root entry zone and adjacent vessels (Table 7 ).…”

Section: Discussionsupporting

confidence: 57%

Correlation study between multiplanar reconstruction trigeminal nerve angulation and trigeminal neuralgia

Sun

Huang

et al. 2022

BMC Neurol

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Objectives Neurovascular compression (NVC) produces morphological changes on the trigeminal nerve root is considered the cause of trigeminal neuralgia (TN), but there were some patients with TN found no NVC, and also NVC was found in asymptomatic individuals. Many studies found tight relationships of TN and morphological structures of trigeminal nerve. We designed this study to explore the correlation between multiplanar reconstruction (MPR) trigeminal nerve angulation (TNA) and TN. Methods Patients with classical symptoms of TN were recruited as observation group (OG) in this study, 50 healthy controls were enrolled as control group (CG), the OG was further subtyped into young patients (YP), middle-aged patients (MP) and old patients (OP) based to the onset age of symptoms, and also divided into patients with or without trigger maneuvers (TM) based on the presence of TM or not. All the participants underwent magnetic resonance (MR) examinations in same device, bilateral TNA measurements were carried out in OG and CG, then TNA was compared between different groups or subgroups. All images were interpreted by two radiologists who were blinded to the study, diagnosis of TN was made by two senior neurosurgery professors. Result Ultimately, 95 patients with primary TN were recruited in OG, aged from 25 to 84 (61.15 ± 12.70) years with a course of 0.5 to 30 (5.03 ± 5.41) years, their onset age ranged from 24 to 82 (56.13 ± 11.98) years. There were 34 males and 61 females in OG, and 58 cases involved right side. The CG aged from 22 to 85 (61.86 ± 13.03) years. No statistical difference was found between the age of OG and CG(p = 0.76), and also the bilateral TNA of CG (154.92 ± 16.90° vs 155.55 ± 17.03°, p > 0.05), while TNA of OG was significantly smaller than CG (150.78 ± 11.29° vs 155.24 ± 16.88°, p = 0.019). In OG, TNA on the affected side was significantly smaller than the unaffected side (149.29 ± 12.44° vs 152.27 ± 9.85°, p = 0.014). TNA showed a positive correlation with onset age of patients with TN, as TNA on the affected side of YP was significantly smaller than MP and OP (139.00 ± 11.64° vs 148.86 ± 11.54°, 139.00 ± 11.64° vs 152.18 ± 12.61°, p = 0.004 and 0.026). Furthermore, patients with TM showed smaller TNA than those without TM (147.05 ± 11.30° vs 164.75 ± 8.39°, p < 0.001). Conclusions This study suggested that TNA might play a role in TN, small TNA could be a risk factor of TN. Furthermore, patients with small TNA are more likely to combine with TM, but more studies are needed to explore the exact role of TNA in TN.

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Section: Discussionsupporting

confidence: 57%

Correlation study between multiplanar reconstruction trigeminal nerve angulation and trigeminal neuralgia

Sun

Huang

et al. 2022

BMC Neurol

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show abstract

“…Brinzeu 4 even found 3D-MR imaging could de nite 97% of NVC. Similar results could also be reached in 3D-SPACE, Pham et al 31 found that fused 3D-T2-SPACE plus 3D-TOF MR angiography imaging was an effectively tools for treatment planning of TN, the SR of NVC evaluation could reach 94%. Here, we make a brief summary of the advantages and disadvantages of different MR sequences in the display of trigeminal root entry zone and adjacent vessels.…”

Section: Value Of Mr In Diagnosis Of Primary Tnsupporting

confidence: 58%

Correlation study between multiplanar reconstruction trigeminal nerve angulation and trigeminal neuralgia

Sun

Huang

Li³

et al. 2022

Preprint

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Objectives Despite neurovascular compression (NVC) is now widely accepted mechanism of trigeminal neuralgia (TN), there were some patients found no NVC, and also NVC was found in asymptomatic individuals. Here, we aimed to explore the correlation between multiplanar reconstruction (MPR) trigeminal nerve angulation (TNA) and TN. Methods From May 2020 to November 2021, 50 healthy controls were enrolled as control group (CG), 95 patients with primary TN were enrolled as observation group (OG), which was further subtyped into young patients (YP), middle-aged patients (MP) and old patients (OP) according to onset age of TN symptoms. Patients was also divided into patients with or without evoked actions according to the presence of evoked actions or not. Bilateral TNA measurements were carried out in OG and CG, image parameters were compared between different groups or subgroups. All images were interpreted by two radiologists who were blinded to the study. Result No statistical difference of bilateral TNA of CG was found, TNA of OG was significantly smaller than CG. In OG, TNA on the affected side was significantly smaller than the unaffected side. TNA showed a positive correlation with age, as TNA on the affected side of YP was significantly smaller than MP and OP. Patients with evoked actions showed smaller TNA than patients without evoked actions. Conclusions This study suggested that TNA might play a role in TN, small TNA could be a risk factor of TN. Furthermore, patients with small TNA are more likely to combine with evoked actions., but more studies are needed to explore the exact role of TNA in TN.

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Comparing 1.5 T and 3.0 T MR data for 3D visualization of neurovascular relationships in the posterior fossa

Hastreiter,

Maliachova,

Fahlbusch

et al. 2023

Acta Neurochir

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Background Neurovascular relationships in the posterior fossa are more frequently investigated due to the increasing availability of 3.0 Tesla MRI. For an assessment with 3D visualization, no systematic analyzes are available so far and the question arises as to whether 3.0 Tesla MRI should be given preference over 1.5 Tesla MRI. Methods In a prospective study, a series of 25 patients each underwent MRI investigations with 3D-CISS and 3D-TOF at 1.5 and 3.0 Tesla. For both field strengths separately, blood vessel information from the TOF data was fused into the CISS data after segmentation and registration. Four visualizations were created for each field strength, with and without optimization before and after fusion, which were evaluated with a rating system and verified with the intraoperative situation. Results When only CISS data was used, nerves and vessels were better visualized at 1.5 Tesla. After fusion, flow and pulsation artifacts were reduced in both cases, missing vessel sections were supplemented at 3.0 Tesla and 3D visualization at 1.5 and 3.0 Tesla led to anatomically comparable results. By subsequent manual correction, the remaining artifacts were further eliminated, with the 3D visualization being significantly better at 3.0 Tesla, since the higher field strength led to sharper contours of small vessel and nerve structures. Conclusion 3D visualizations at 1.5 Tesla are sufficiently detailed for planning microvascular decompression and can be used without restriction. Fusion further improves the quality of 3D visualization at 3.0 Tesla and enables an even more accurate delineation of cranial nerves and vessels.

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Predictability of Fused 3D-T2-SPACE and 3D-TOF-MRA Images in Identifying Conflict in Trigeminal Neuralgia

Cited by 5 publications

References 20 publications

Correlation study between multiplanar reconstruction trigeminal nerve angulation and trigeminal neuralgia

Correlation study between multiplanar reconstruction trigeminal nerve angulation and trigeminal neuralgia

Correlation study between multiplanar reconstruction trigeminal nerve angulation and trigeminal neuralgia

Comparing 1.5 T and 3.0 T MR data for 3D visualization of neurovascular relationships in the posterior fossa

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