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Isotropic volumetric MRI for displaying cranial perineural spread of cranial nerve in nasopharyngeal carcinoma

中国医学影像技术 2024年第8期40卷 1164-1169页

作者： ZHENG Dechun XU Shugui LAI Guojing HU Chunmiao CAO Xisheng FENG Meimei PENG Li Department of Radiology Clinical Oncology School of Fujian Medical UniversityFujian Cancer HospitalFuzhou 350014China Department of Radiation Oncology Clinical Oncology School of Fujian Medical UniversityFujian Cancer HospitalFuzhou 350014China

Objective To observe the value of isotropic volumetric MRI for displaying perineural spread(PNS)of cranial nerve(CN)in nasopharyngeal *** Eighty-seven patients with pathologically proven nasopharyngeal carcinoma were prospectively *** scanning,including three-dimensional liver acquisition with volume acceleration-flexible(3D LAVA_Flex)image,T2WI with fat suppression(T2WI-FS),T1WI,contrast enhancement(CE)T1WI-FS of nasopharynx and neck region were *** displaying rates of CN PNS were evaluated and compared between 3D LAVA_Flex and T2WI-FS,T1WI,CE-T1WI-FS at patient level,CN group level and neural level,*** The displaying rate of CN PNS in all 87 nasopharyngeal carcinoma patients by 3D LAVA_Flex sequence was 49.43%(43/87),higher than that of conventional MRI(30/87,34.48%,P=0.001).Among 59 patients with advanced nasopharyngeal carcinoma diagnosed with conventional sequences,the displaying rate of CN PNS was 71.19%(42/59)by 3D LAVA-Flex sequence,higher than that of conventional MRI(30/59,50.85%,P=0.001).At both patient level and posterior CN level,significant differences of the displaying rate of CN PNS were found between 3D LAVA-Flex sequence and T2WI-FS,T1WI,CE-T1WI-FS,while at CN level,the displaying rates of mandibular nerve PNS,CNⅨ—ⅪPNS in jugular foramen(Pnerve were significantly higher than that of T2WI-FS and T1WI(both P<0.05).Conclusion 3D LAVA_Flex sequence could be used to effectively display CN PNS of nasopharyngeal carcinoma.

关键词： nasopharyngeal neoplasm cranial nerve magnetic resonance imaging neoplasm metastasis prospective studies

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Ocular cranial nerve palsies secondary to sphenoid sinusitis

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2017年第1期3卷 -页

作者： Aiman El Mograbi Ethan Soudry Department of Otolaryngology Head and Neck Surgery Rabin Medical CenterPetah TikvaIsrael Department of Otolaryngology Head and Neck Surgery Rabin Medical CenterPetah TikvaIsraelSackler School of MedicineTel Aviv UniversityTel AvivIsrael

UNASSIGNED:The clinical presentation of sphenoid sinusitis can be highly variable. Rarely, sphenoid sinusitis may present with cranial nerve complications due to the proximity of these structures to the sphenoid sinus.;UNASSIGNED:A case series from Rabin Medical Center and all cases of cranial nerves palsies secondary to sphenoid sinusitis that have been reported in the literature were reviewed.;UNASSIGNED:Seventeen patients were identified. The abducent nerve was the most common cranial nerve affected (76%), followed by the oculomotor nerve (18%). One patient had combined oculomotor, trochlear and abducent palsies. The most common pathology was isolated purulent sphenoid sinusitis in 64% followed by allergic fungal sinusitis (AFS) in 18%, and fungal infection in 18%. 94% had an acute presentation. The majority (85%) received a combined intravenous antibiotics and surgical treatment. The remainder received conservative treatment alone. Complete recovery of cranial nerve palsy was noted in 82% during follow up.;UNASSIGNED:Sphenoid sinusitis presenting as diplopia and headaches is rare. A neoplastic process must be ruled out and early surgical intervention with intravenous antimicrobial therapy carry an excellent outcome with complete resolution of symptoms.

关键词： cranial nerve Ocular Palsy Sinusitis Sphenoid Sphenoiditis

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Location of the AICA influences the severity but not occurrence of ISSNHL:A reappraisal using high-resolution 3 T MRI

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中华耳科学杂志:英文版 2023年第4期18卷 193-198页

作者： Guoping Zhang Hongbin Li Zikai Zhao Mingxing Zhang Jing Zou Department of Otolaryngology-Head and Neck Surgery Changhai HospitalSecond Military Medical UniversityShanghaiChina Faculty of Information Technology and Communication Sciences Tampere UniversityTampereFinland Department of Otolaryngology Beijing Daxing District People's HospitalCapital Medical UniversityBeijingChina

Objective:To investigate the potential influence of anatomical variation in the anterior inferior cerebellar artery(AICA)on the occurrence and severity of idiopathic sudden sensorineural hearing loss(ISSNHL).Methods:Ninety ISSNHL patients were *** anatomical location of the AICA was exhibited using high-resolution magnetic resonance imaging(MRI),and the various AICA types classified by previously reported Chavda and Gorrie methods were *** severity of hearing loss in the ipsilateral ear among different AICA types was ***:Approximately 85.6%of subjects had unilateral ISSNHL(uISSNHL),and the others had bilateral ISSNHL(bISSNHL).In the uISSNHL group,the ratios of different AICA types were similar between the ipsilateral and contralateral *** ratios of the different AICA types in the bISSNHL group were similar to those in the uISSNHL *** the uISSNHL group,pure tone audiometry(PTA)thresholds at 2 kHz,4 kHz and 8 kHz of patients with Chavda type II AICA were higher than those of patients with Chavda type I and type III,with a significant difference at 4 kHz between type I and type *** was a tendency of the PTA threshold in patients with Chavda type II or Gorrie type C to gradually increase from low to high frequency ***:When the AICA enters the IAC(Chavda type II)or crosses between the 7th and 8th cranial nerves(Gorrie type C),the severity and frequency of hearing impairment in ISSNHL but not the occurrence of ISSNHL will be affected.

关键词： Idiopathic sudden sensorineural hearing loss Anterior inferior cerebellar artery Anatomy Magnetic resonance imaging cranial nerve

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A standardized method to create peripheral nerve injury in dogs using an automatic non-serrated forceps

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Neural Regeneration Research 2012年第32期7卷 2516-2521页

作者： Xuhui Wang Liang Wan Xinyuan Li Youqiang MenG Ningxi Zhu Min Yang Baohui Feng Wenchuan Zhang Shugan Zhu Shiting Li Department of Neurosurgery Xinhua Hospital Shanghai Jiao Tong University School of Medicine Shanghai 200092 China The cranial nerve Disease Center of Shanghai Shanghai 200092 China

This study describes a method that not only generates an automatic and standardized crush injury in the skull base, but also provides investigators with the option to choose from a range of varying pressure revels. We designed an automatic, non-serrated forceps that exerts a varying force of 0 to 100 g and lasts for a defined period of 0 to 60 seconds. This device was then used to generate a crush injury to the right oculomotor nerve of dogs with a force of 10 g for 15 seconds, resulting in a deficit in the pupil-light reflex and ptosis. Further testing of our model with Toluidine-blue staining demonstrated that, at 2 weeks post-surgery disordered oculomotor nerve fibers, axonal loss, and a thinner than normal myelin sheath were visible. Electrophysiological examination showed occasional spontaneous potentials. Together, these data verified that the model for oculomotor nerve injury was successful, and that the forceps we designed can be used to establish standard mechanical injury models of peripheral nerves.

关键词： oculomotor nerve forceps instrument nerve injury model quantitation cranial nerve peripheral nerve neural regeneration

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Electrical stimulation promotes regeneration of injured oculomotor nerves in dogs

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Neural Regeneration Research 2016年第10期11卷 1666-1669页

作者： Lei Du Min Yang Liang Wan Xu-hui Wang Shi-ting Li Department of Gerontology Xinhua Hospital Shanghai Jiao Tong University School of Medicine Department of Neurosurgery Xinhua Hospital Shanghai Jiao Tong University School of Medicine

Functional recovery after oculomotor nerve injury is very poor. Electrical stimulation has been shown to promote regeneration of injured nerves. We hypothesized that electrical stimulation would improve the functional recovery of injured oculomotor nerves. Oculomotor nerve injury models were created by crushing the right oculomotor nerves of adult dogs. Stimulating electrodes were positioned in both proximal and distal locations of the lesion, and non-continuous rectangular, biphasic current pulses （0.7 V, 5 Hz） were administered 1 hour daily for 2 consecutive weeks. Analysis of the results showed that electrophysiological and morphological recovery of the injured oc- ulomotor nerve was enhanced, indicating that electrical stimulation improved neural regeneration. Thus, this therapy has the potential to promote the recovery of oculomotor nerve dysfunction.

关键词： nerve regeneration oculomotor nerve electrical stimulation dog nerve injury model cranial nerve peripheral nerve

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Nasopharyngeal carcinoma: Long term follow-up of 83 patients

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World Journal of Otorhinolaryngology 2015年第2期5卷 65-70页

作者： Ali Mardassi Nabil Mathlouthi Nawel Hlila Chiraz Halouani Sameh Mezri Cyrine Zgolli Ghassen Chebbi Rania Ben Mhamed Khemaies Akkari Sonia Benzarti ENT Department Military Hospital of Tunis

AIM: To analyzes the clinical, paraclinical, therapeutical and evolutive features of nasopharyngeal carcinoma(NPC).METHODS: All the patients treated for a nasopharyngeal carcinoma between 2000 and 2013 in the Ear-NoseThroat Department of the Military Hospital of Tunis, Tunisia were collected in this study. Eighty-three patients signed a written consent prior to study enrollment. The gender ratio(M/W) was 6.5 with a median age of 49 years(range 16-85). The median follow up time was 37 mo(18 to 108 mo). The evolution, during and after the end of therapy, was assessed on clinical biological and radiological exams. Different parameters were analyzed and compared to other series: complications of chemo and radiotherapy, recurrence of the disease, metastasis and overall survival ***: Of the 83 patients of our study, 15% had T1 tumors, 20% had T2, 23% had T3 and 41% had T4 disease. At the time of diagnosis, 14% of the patients had a cranial nerve deficit. Only 12 patients had exclusive radiotherapy and the remaining of our patients had concomitant radio chemotherapy. Iatrogenic complications were diagnosed in 53% of the cases: radioepithelitis(28%), radiodermatitis(9%), xerostomia(17%), osteoradionecrosis(3%), cerebral radionecrosis(1%) and a pancytopenia(17%). The follow-up period varied from 18 to 108 mo(average: 37 mo). During the first six months after treatment, a persistence of the disease was found in 11% of patients, while a recurrence of the cancer was diagnosed in 6% and distant metastasis developed in 14% of the patients. Fifteen patients needed remedial chemotherapy for a relapse or metastasis and five had palliative chemotherapy for very advanced cases. We report 3 cases of death during the follow-up. CONCLUSION: Despite its excellent radio-chemotherapy response, and general good prognosis, a careful follow-up of patients with NPC is necessary to detect and manage any iatrogenic complication, locoregional recurrence or metastasis of the disease.

关键词： Nasopharyngeal carcinoma cranial nerve Radiotherapy Chemotherapy Metastasis

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