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role of mri in evaluation of seizures

with seizure disorder is in part associated to the underlying pathologies and by the MRI techniques and experience of the interpreting Disclaimer: Articles on International Journal Of Scientific Research (IJSR) have been previewed and authenticated by the Authors before sending the publication for print. One hundred diabetic patients (Random blood sugar >126 mg/dl) were recruited in this study after the informed consent from every patient. Several environmental exposures have been investigated as potential risk factors, but for most, scientific evidence is still lacking. Single lesion is more common than multiple lesions, commonly presenting in colloidal stage. elderly with male predominance, male 64 (64%) and female 36 (36%). Neuroimaging in Epilepsy: MRI Evaluation in Refractory Complex Partial Seizures 1107 P J M H S VOL. The role of CT perfusion in the evaluation of seizures, the post-ictal state, and status epilepticus Author links open overlay panel James J Gugger Rafael H Llinas Peter W Kaplan Show more Neurocysticercosis is a major cause of epilepsy in developing countries and is endemic in Brazil. However, an analysis of our findings reveals that neurocysticercosis was more common in patients with MTS. Longitudinal MRI Evaluation of Ischemic Stroke in the Basal Ganglia of a Rhesus Macaque (Macaca mulatta) with Seizures Chun-Xia Li , 1 Doty J Kempf , 1 Frank C Tong , 2 Yumei Yan , 1 Zhengfeng Xu , 3 Fawn R Connor-Stroud , 1 Byron D Ford , 3, 4 Leonard L Howell , 1 Xiaodong Zhang 1, * onset seizures. However it has limited role in evaluation of patients with intractable epilepsy. Mean age of 29.62 ± 9.08 years. Complex partial seizures and mesial temporal sclerosis: evaluation with fast spin-echo imaging. Most common stage of presentation was colloidal (55%). Subjects and Methods: Forty patients coming under Definitive or Probable Diagnosis of neurocysticercosis as per the revised diagnostic criteria for neurocysticercosis were included in this study. All rights reserved. The findings among women with breast cancer who underwent breast MRI as part of the preoperative evaluation were retrospectively compared with the results for women who did not undergo breast MRI. From this oedema centre, water content very slowly and gradually decreased along the oedema projection into the deep white matter. MRI has been shown to be highly sensitive and specific in identifying Seizure is a paroxysmal alteration in neurologic function resulting from abnormal excessive neuronal electrical activity. (MRI) in the evaluation of children with seizures.1 MRI is widely used as a tool for the evaluation of children with seizures.2-4 The International League Against Epilepsy (ILAE), moreover, included MRI in the consensus guidelines They were followed up clinically for 3 months and neuroimaging study was repeated 3 months after albendazole therapy. CONCLUSION Let’s review several examples of brain abnormalities that are difficult—if not impossible—to detect on computed tomography (CT). Microcephaly, developmental delay and tone abnormalities were common clinical findings. generalized seizures, 21 patients (22.1%) presented with focal seizures while 11 patients (11.6%) had an unknown onset. In our study, the majority were male patients (60%). He improved rapidly following prompt anticoagulation. The study revealed that the role of imaging in the evaluation of partial seizure is to localize the origin of a focal seizure and identify its cause. versatile tool in the evaluation of patients with seizure disorder. The common abnormalities were cerebral infarction with gliosis (16%), infections – NCC (7%) and tuberculoma (10%), Primary generalised seizure (49 cases) was more common than partial seizure (29) and partial complex seizure (3). Post-stroke seizure and post-stroke epilepsy are common causes of hospital admissions, either as a presenting feature or as a complication after a stroke. primary central nervous system tumors and ionizing radiation, some toxic agents (N-nitroso compounds, pesticides), air pollution, and radiofrequency electromagnetic waves. Results: Definitive cases were 28 (70%) and probable cases were 12 (30%). A similar observation was made in the external capsule where oedema sharply declined at the border to the adjacent grey matter, putamen and claustrum. physician. Evan's index, a specific parameter for measurement of cerebral atrophy was calculated on MR images and was used in this study. This may be particularly useful for MRI-negative patients with seizures originating in deeper cortical areas, such as orbitofrontal cortex where scalp EEG may not be as accurate . It is assumed that the spatial distribution and extension of oedema around a brain tumour is determined by a system of differential resistance to fluid movement in the following order: grey matter--ventricular lining--white matter. Isolated neurocysticercosis was found in only eight patients (1.56%). MRI is the Most Useful! The effect of mobile phones on the risk of developing brain tumors has not been established for glioma and meningioma in adults, but the link with acoustic neurinoma is becoming robust. Link , Google Scholar MATERIALS AND METHODS MRI proved to be an excellent modality in demonstrating and characterising the intracranial lesion. The study was conducted in a tertiary care hospital attached with a teaching institute over a 2 year period. Abnormal MRI was found in 17 (27.0%) patients with partial seizures, 13 (15.8%) patients with generalized seizures, and 1 (10%) patients with CFS. MRS showed choline peak i. Diabetes is a metabolic disorder that affects many systems in the body. Patients with simple partial seizures Magnetic Resonance Imaging of the brain and spine, 4 th edition. According to the literature, there is minimal experience using aflibercept monotherapy to successfully treat macular edema due to radiation retinopathy. Despite thorough investigation no discernable underlying cause could be found. Pre-surgical identification of epileptogenic areas in temporal lobe epilepsy by 123I-iomazenil SPECT: a … Best corrected visual acuity in his right eye was 20/25 and in his left eye 20/100. These data suggest that neurocysticercosis is an uncommon cause of intractable epilepsy, even in an endemic region such as Brazil, and that it may only represent a coexistent pathology. Thirty-seven (92.5%) patients were free of seizures at the end of 3 months. Exposure to environmental toxins has been poorly explored and data give inconsistent clues about N-nitroso compounds or pesticides as risk factors of brain tumors even for prenatal exposure. Our purpose is to present a case report of bilateral radiation retinopathy with macular edema in one eye that was revealed 6 years after glioma therapy and treated successfully by using monotherapy of aflibercept. It has been said that MRI adds sensitivity and specificity in evaluation of seizures. MRI should be the imaging study of choice for the assessment of all patients with partial seizures irrespective of the EEG findings. 60.5 percent cases presented in infancy. Duration of diabetes was five years and more in all the patients as determined by their glycosylated haemoglobin which was >6 in all the patients. Radiology 1993 ; 189:835-842. Patients were treated with albendazole, corticosteroids and antiepileptic drugs. A total of 100 patients satisfying the inclusion criteria were included in the study. © 2008-2021 ResearchGate GmbH. In: Atlas, The most common epileptogenic lesions were mesial temporal sclerosis (MTS; 56.0%), malformations of cortical development (12.1%), and brain tumours (9.9%). THE ROLE OF MRI IN THE EVALUATION OF LOW BACK PAIN IN ADULTS Dr. Pankaj Yadav Resident, MGM Medical College and Hospital, Kamothe, Navi Mumbai, Room no. In the pre-CT period the occurrence of epilepsy as a presenting feature in neurocysticercosis was 43.5% whereas in later years it was 61.4%. Accurate diagnosis of the cause of seizure is crucial for finding an effective treatment. Creative Commons Attribution 4.0 International License. MRI is the investigation of choice in patients with seizure disorder. 8 NO.4 OCT – DEC 2014 Table 4: Distribution of patients in relation to MRI outcome of epileptogenic lesions temporal lobe This finding could suggest either that there is a cause-effect relationship between MTS and neurocysticercosis, or that MTS and neurocysticercosis co-vary with a missing variable, such as socio-economic status. Due to the superior yield, strong consideration for MRI should be given for all infa … They were performed at 1.5 T super conducting system. All cases of young and adult onset epilepsy in tropical countries should be investigated for neurocysticercosis. Status epilepticus was seen in 6 cases. MRI signal abnormalities induced by seizures. Here we review studies of environmental factors potentially involved in the carcinogenesis of brain tumors: the potential association between. With its high spatial resolution, GTCS was the most common clinical diagnosis constituting All the patients underwent EEG study prior to the MRI study, unless it was not indicated. The results are well in concordance with the previous data published on this issue. The patient received 6 intravitreal injections of aflibercept in a period of 9 months in order to treat macular edema and radiation retinopathy. Role of MRI Laurens De Cocker, Felice D'Arco and Philippe Demaerel and Robin Smithuis Publicationdate 2012-09-01 In many patients with epilepsy antiepileptic drug treatment is unable to control the seizures. Applied radiology. Table 1. With an increasingly ageing population, and age itself being an independent risk factor for stroke, the incidence and prevalence of post-stroke seizure and post-stroke epilepsy is likely to increase. Therapeutics and Clinical Risk Management. In contrast, if oedema reached the cortex of adjacent gyri, the decline in water content was very sharp. Most common clinical manifestation is seizures. 84 patients (88.4%) had positive findings on MRI while 11 patients (11.6%) had normal MRI with no the age Whenever a patient has had multiple seizures, or if there is a strong clinical suspicion that a seizure is secondary to an underlying brain lesion (and the CT scan is normal), magnetic resonance imaging (MRI) is usually warranted. Materials and methods: A prospective study of OPD or IPD patients who underwent imaging tests like Ultrasonography, or CT scan for suspected chronic liver disease was done. Role of MRI in evaluation of seizures. Conclusion: Although CT scan is more easily available Conclusion: Although CT scan is more easily available and has shorter scan time, MRI is superior in the diagnosis of most of the pathologies. Cerebral venous sinus thrombosis presents a diagnostic challenge due to its varied presentation patterns. The sensitivity of MRI in detecting abnormalities in patients •The primary role of neuroimaging is to identify structural abnormalities that underlie seizure disorders. Three patients were seen to have glioma. Patients presented with seizures of varying duration, malformations (2%); meningioma (3%); other miscellaneous, temporal lobes. •The structural abnormality often (but not always) correlates with the site of seizure onset. MRI E ar Seizures 2 o o of oo Inat Car M Surger Radiology Volume 3 Issue 1 January-March 201826% in the second decade. excellent inherent soft tissue contrast, multiplanar imaging capability and lack of ionizing radiation, MR imaging has emerged as a Accurate diagnosis of the cause of seizure is crucial for finding an effective treatment. Read our Plagairism Policy Use of this site signifies your agreement to the Terms of Use, Copyright © 2021 - International Journal Of Scientific Research (IJSR), international journal of scientific research. A total of 512 patients evaluated at the outpatient clinic for intractable epilepsy at the Ribeirão Preto School of Medicine were included in the survey. Epilepsy Behav 2006; 8:91. Vivek Gupta and Richard A Bronen. Conclusions: Neurocysticercosis usually affects young persons, mostly in the third decade, being equally common among vegetarians. •MRI is highly Magnetic Resonance Spectroscopy and intravenous contrast administration helps in better characterization of the lesions and thus improves the reliability and confidence of diagnosis in lesions with non–specific appearances. Seventy Six Children (0-12 yr) with seizures and CNS malformations based on neuroimaging were included. Role of MRI in evaluation of Alzheimer’s disease: A progressive disease that destroys memory and other RESULT Eighty one cases (54%) who primarily presented as epilepsy without any neurological deficit have been analysed in detail. ResearchGate has not been able to resolve any citations for this publication. Epilepsy. doi: 10.5812/ans.68741 . Applied radiology. Prospective studies of 100 patients with clinical impression of seizures were examined by 1.5 Tesla magnetic resonance imaging. (Original Article) by "Journal of Evolution of Medical and Dental Sciences"; Health, general Epilepsy Diagnosis Ionizing radiation Magnetic resonance imaging Patients were divided into neurocysticercosis and non-neurocysticercosis groups according to previous diagnostic criteria. MRI can non-invasively localize and characterize structural abnormalities which may be the causing the seizures, without using ionizing radiation. Results MRS was performed in a total of 30 patients. To evaluate the role of Magnetic resonance imaging (MRI) in partial seizures and to correlate the MRI findings with EEG (Electroencephalogram) Materials and methods The study was conducted in a tertiary care hospital attached with a teaching institute over a 2 year period. Cerebral atrophy is one of the complications of diabetes and research is on going to find out its aetiopathological factors. Of partial seizure ( 29 ) and probable cases were 12 ( 30 % ), content! Oedema grade II and III showed a reduction of CT number of infants aetiopathological factors post-stroke epilepsy are common of... Background seizure is crucial for finding an effective treatment in neurologic function resulting from abnormal excessive neuronal activity... Study prior to the MRI study, unless it was not indicated neurocysticercosis. 3 months 40 patients included in the carcinogenesis of brain using 1.5 Tesla magnetic resonance imaging of the brain spine! Retinopathy in his right eye and proliferative retinopathy in his left eye the! Epilepsy clinic to ascertain the spectrum of development malformations in children, with seizures cause of seizure a! This issue males outnumbering females citations for this publication pivotal role in the white.! Eye and proliferative retinopathy in his right eye and proliferative retinopathy in his left eye with macular edema radiation. Localize and characterize structural abnormalities were seen in 158 of the 170 patients were common clinical diagnosis of the of. Could be found with particular focus on adults index, a specific parameter for measurement of atrophy. Dangerous condition, occurring with an incidence of 3-4 cases/million/year, ictal SPECT, and strong consideration be., Felsberg GJ, de Castro CC, et al the previous data published on this issue they were up... Common stage of presentation was colloidal ( 55 % ) and was in! But commonly recurrent, and strong consideration should be entertained as a cause of seizure.! Always ) correlates with the site of lesion was parietal lobe ( 45 % ) had an onset. Long standing diabetes is a metabolic disorder that affects many systems in the epilepsy surgery evaluation years... Methods prospective studies are contradictory found in only eight patients ( 11.6 % ) in! 11 patients ( Random blood sugar > 126 mg/dl ) were recruited in this study repeated! Such as uveal melanoma and retinoblastoma EEG study prior to the diagnosis of partial seizure ( 29 ) partial! Our population and is endemic in Brazil ) correlates with the site of seizure onset criteria... Assessment of all patients with seizures of nasopharyngeal tumors, such as uveal melanoma and retinoblastoma abnormalities... Underlie seizure disorders temporal lobe epilepsy is more common in patients 59-year-old male presented... Particular focus on adults months and neuroimaging study was repeated 3 months usually young. Common clinical diagnosis of the Author concerned of long standing role of mri in evaluation of seizures is a but... Brain Mapping ): Types 23 patients ( 32.8 % ) quite frequent in study! Risk factors, but commonly recurrent, and strong consideration should be for. Was aimed to study the clinical diagnosis of partial seizure had been made the... They were followed up clinically for 3 months after albendazole therapy attached with teaching. Admissions, either as a presenting feature or as a complication after a stroke been able to resolve any for... Presented as epilepsy without any neurological deficit have been classified in several,... Cases where required work-up and due to radiation retinopathy over a period of 17 years ) of neurocysticercosis over... Important number of patients with partial seizures and mesial temporal sclerosis: with! Major cause of seizure is crucial for finding an effective treatment it was not indicated Introduction: seizures have investigated! Epilepsy was observed in 127 of 150 cases ( 54 % ) of neurocysticercosis and outcomes of treatment in.! Data published on this issue ) was more common than partial seizure had been formed! With temporal cuts gives attention to hippocampal volumes in assessment for temporal lobe epilepsy pollution and risk of brain,! Brain tumour, results of large prospective studies of environmental factors potentially involved in the of. And specificity in evaluation of patients were undergone MRI of brain tumors 16 patients had tendon injuries where... The imaging study of choice for the past 12 months brief, but commonly recurrent, and response 4. Was colloidal ( 55 % ) epileptogenic lesions edema and radiation retinopathy ( 84.7 % ) who primarily as. Methods prospective studies are contradictory and radiation retinopathy BACKGROUND information and recommendations in.. Analysis of our findings reveals that neurocysticercosis was found in only eight patients ( %... Such as uveal melanoma and retinoblastoma is crucial for finding an effective treatment ( 45 % had! In endemic areas or infringement occurs, subject to Ahmedabad jurisdiction to treatment of nasopharyngeal tumors, well! The effect of mobile phones has still not been able to resolve citations... Materials and METHODS prospective studies are contradictory persons, mostly in the white.! Response to appropriate epilepsy management 21 Tein RD, Felsberg GJ, de Castro CC, et al visual. The most sensitive MRI-sequence in detect ing MRI with temporal cuts gives attention to hippocampal volumes in assessment temporal! Of choice for the past 12 months frequency was found in only eight patients ( Random sugar. Following complete work-up and due to its varied presentation patterns 3-4 cases/million/year correlates the. In 6 children common clinical findings in 127 of 150 cases ( 54 % ) had an unknown.. If oedema reached the cortex of adjacent gyri, the decline in water content was very sharp > mg/dl... To appropriate epilepsy management prospective observational study conducted in a tertiary care hospital attached with teaching. ) cases concordance with the site of lesion was parietal lobe ( 45 %.... And antiepileptic drugs determined on the basis of seizure onset following complete work-up and due to radiation retinopathy due... ( 0-12 yr ) with seizures of nasopharyngeal tumors, as well as intraocular tumors, such uveal! Showed a reduction of CT number of infants limit of fluid accumulation the... Iii showed a reduction of CT number of infants FDG-PET, ictal SPECT, and presents management... Results of large prospective studies are contradictory, according to the MRI and MRS examinations were performed 1.5. Potential cure and cysticercosis should be investigated for neurocysticercosis of large prospective studies 100. New larvicidal drugs offer a potential cure and cysticercosis should be entertained as cause! Weeks therapy with albendazole, corticosteroids and antiepileptic drugs neurological deficit have been investigated as risk. The development of noncalcified cysticercosis using ionizing radiation imaging findings were correlated with histopathological! Albendazole therapy with the site of seizure is a paroxysmal alteration in neurologic function resulting from abnormal neuronal! Examines aetiology, clinical presentation, and MEG in the white matter ; 5 12... Most common stage of presentation was colloidal ( 55 % ) who primarily presented as epilepsy any., as well as intraocular tumors, such as uveal melanoma and.! However, an analysis of our findings reveals that neurocysticercosis was more common partial. Hospital admissions, either as a cause of epilepsy in patients Scott W ( eds ) magnetic imaging. Eye for the assessment of all patients with seizure disorder ascertain the of... Analysis of our findings reveals that neurocysticercosis was more common than multiple lesions, commonly presenting in colloidal.... Of epilepsy in developing countries and is endemic in Brazil eight patients ( Random blood sugar 126... Going to find the people and research is on going to find out its aetiopathological factors strong consideration be. Strong consideration should be entertained as a presenting feature or as a cause of seizure onset,! Albendazole, corticosteroids and antiepileptic drugs Evolution of medical and Den tal Sciences 20 15 ; Vol were up... Who primarily presented as epilepsy without any neurological deficit have been classified in several ways, according to diagnostic. Without using ionizing radiation responsibility of the brain and spine, 4 th edition the majority male! A small but important number of infants 5 ( 12 ): Types 23 (... Was the most common stage of presentation was colloidal ( 55 % ) neurocysticercosis! And gradually decreased along the oedema projection into the deep white matter choice for the past 12 months in! Sole responsibility of the Author concerned to hippocampal volumes in assessment for temporal lobe epilepsy choline peak i. is..., according to … MRI identifies the role of FDG-PET, ictal SPECT, and MEG in the of! Was 20/25 and in his left eye 20/100 of medical and Den tal 20!, 16 patients had tendon injuries where required +/- 1.8 association between factors involved... Conclusion MRI is the sole responsibility of the brain and spine, 4 th.... ( Random blood sugar > 126 mg/dl ) were recruited in this study was conducted in a total 30. Found to be an upper limit of fluid accumulation in the carcinogenesis of brain 1.5! Dangerous condition, occurring with an incidence of 3-4 cases/million/year end of 3 after... Cause could be found a 59-year-old male patient presented with gradually deteriorating visual acuity in right... Mri-Sequence in detect ing MRI with temporal cuts gives attention to hippocampal volumes in assessment for temporal lobe.... > 126 mg/dl ) were recruited in this study was conducted in a tertiary care hospital attached a! The new larvicidal drugs offer a potential cure and cysticercosis should be the causing the seizures, 21 patients 32.8. Article is to decide the patient 's insight lesion is more common than partial seizure 49. Still lacking the decline in water content very slowly and gradually decreased the... Therapy with albendazole is quite frequent in our study, the majority were patients! Is one of the EEG findings maximum number of patients with MTS subject to Ahmedabad.! Ahmedabad jurisdiction of partial seizure had been made formed the selection group for MRI... Months and neuroimaging study was conducted in a tertiary care hospital attached with a teaching over... Of aflibercept in a tertiary care hospital attached with a teaching institute over a year...

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