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Magnetic resonance imaging of patients with cervicogenic headache

Coskun Ö. | Ucler S. | Karakurum B. | Atasoy H.T. | Yildirim T. | Ozkan S. | Inan L.E.

Article | 2003 | Cephalalgia23 ( 8 ) , pp.842 - 845

Cervicogenic headache (CH) is a syndrome which is postulated to originate from nociceptive structures in the neck or head. The anatomical neck or head structures that are responsible for the pain in CH have not been clearly identified, but the pain in these patients probably originates from the structures of the cervical spine. In this study, cervical MRI were studied in 22 patients with cervicogenic headache and 20 control patients who did not have any disease which may effect the bone and muscle structures of cervical region. MRI imaging of cervical vertebra showed a disc bulging in 10 (45.4%) out of 22 patients with CH and in 9 ( . . .45.0%) of 20 controls (P > 0.05). The distribution of pathological lesions in patients and controls were not significantly different (P > 0.05). As a result, MRI may not be an adequate method to detect pathological findings underlying the aetiology of CH such as nerve roots, intervertebral joints and periosteum Daha fazlası Daha az

Isovaleric acidaemia: Cranial CT and MRI findings

Sogut A. | Acun C. | Aydin K. | Tomsac N. | Demirel F. | Aktuglu C.

Article | 2004 | Pediatric Radiology34 ( 2 ) , pp.160 - 162

Isovaleric acidaemia is an inborn error of leucine metabolism due to deficiency of isovaleryl-CoA dehydrogenase, which results in accumulation of isovaleric acid in body fluids. There are acute and chronic-intermittent forms of the disease. We present the cranial CT and MRI findings of a 19-month-old girl with the chronic-intermittent form of isovaleric acidaemia. She presented with severe metabolic acidosis, hyperglycaemia, glycosuria, ketonuria and acute encephalopathy. Cranial CT revealed bilateral hypodensity of the globi pallidi. MRI showed signal changes in the globi pallidi and corticospinal tracts of the mesencephalon, which . . . were hypointense on T1-weighted and hyperintense on T2-weighted images Daha fazlası Daha az

An unusual cause for anterior knee pain: Strangulated intra-articular lipoma

Keser, Selçuk | Bayar, Ahmet | Numanoğlu, Gamze

Article | 2005 | Knee Surgery, Sports Traumatology, Arthroscopy13 ( 7 ) , pp.585 - 588

Lipoma is the most frequently encountered benign soft tissue tumor. However, intra-articular lipomas are rarely seen. Anterior knee pain is a frequent complaint of adults and is of diverse etiology. This 42-year-old female patient had severe anterior knee pain, unresponsive to medical treatment. Magnetic resonance imaging revealed an intra-articular tumor of the knee joint. Arthroscopic intervention and subsequent histological examination resulted in the diagnosis of strangulated lipoma originating from infrapatellar fat pad. We present clinical, radiological and operative features of this rare case of intra-articular lipoma. © Spri . . .nger-Verlag 2005 Daha fazlası Daha az

MRI evaluation of progressive supranuclear palsy: differentiation from Parkinson’s disease and multiple system atrophy

Eraslan C. | Acarer A. | Guneyli S. | Akyuz E. | Aydin E. | Colakoglu Z. | Kitis O.

Article | 2019 | Neurological Research41 ( 2 ) , pp.110 - 117

Objectives: To evaluate the magnetic resonance imaging (MRI)-derived parameters in differentiation of patients with progressive supranuclear palsy (PSP) from patients with Parkinson’s disease (PD), multiple system atrophy (MSA), and control subjects was aimed. Methods: Thirty-three patients [mean age, 65.21 ± 4.75 years; PSP (n = 9), MSA (n = 8), PD (n = 6), and control subjects (n = 10)] who have undergone cranial MRI were included in this retrospective study. MRI-derived parameters including areas of midbrain and pons, midbrain area-to-pons area (M/P) ratio, widths of middle cerebellar peduncle (MCP) and superior cerebellar pedunc . . .le (SCP), MCP/SCP ratio, magnetic resonance parkinsonism index (MRPI), cerebral interpeduncular angle, and length of midbrain tegmentum were compared in patients with PSP, PD, MSA, and control subjects through the analysis of variance and Kruskal–Wallis tests with Bonferroni correction and Mann–Whitney U test. Results: The length of midbrain tegmentum, midbrain area, SCP, and M/P ratio were found to be lower, while cerebral interpeduncular angle and MRPI were higher in patients with PSP. Pons area, MCP width, and MCP/SCP ratio were found to be lower in patients with MSA. For PSP, cerebral interpeduncular angle has a sensitivity of 100% and specifity of 90%, and MRPI had a sensitivity of 88.9% and specifity of 100% for PSP. Discussion: Several MRI-derived parameters can be used in differentiation of patients with PSP from patients with PD, MSA and control subjects. The cerebral interpeduncular angle and MRPI, which demonstrated higher values in patients with PSP, were more significant for PSP than the other parameters. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group Daha fazlası Daha az

MRI evaluation of progressive supranuclear palsy: differentiation from Parkinson's disease and multiple system atrophy

Eraslan, Cenk | Acarer, Ahmet | Guneyli, Serkan | Akyuz, Esra | Aydin, Elcin | Colakoglu, Zafer | Kitis, Omer

Article | 2019 | NEUROLOGICAL RESEARCH41 ( 2 ) , pp.110 - 117

Objectives: To evaluate the magnetic resonance imaging (MRI)-derived parameters in differentiation of patients with progressive supranuclear palsy (PSP) from patients with Parkinson's disease (PD), multiple system atrophy (MSA), and control subjects was aimed. Methods: Thirty-three patients [mean age, 65.21 +/- 4.75 years; PSP (n = 9), MSA (n = 8), PD (n = 6), and control subjects (n = 10)] who have undergone cranial MRI were included in this retrospective study. MRI-derived parameters including areas of midbrain and pons, midbrain area-to-pons area (M/P) ratio, widths of middle cerebellar peduncle (MCP) and superior cerebellar pedu . . .ncle (SCP), MCP/SCP ratio, magnetic resonance parkinsonism index (MRPI), cerebral interpeduncular angle, and length of midbrain tegmentum were compared in patients with PSP, PD, MSA, and control subjects through the analysis of variance and Kruskal-Wallis tests with Bonferroni correction and Mann-Whitney U test. Results: The length of midbrain tegmentum, midbrain area, SCP, and M/P ratio were found to be lower, while cerebral interpeduncular angle and MRPI were higher in patients with PSP. Pons area, MCP width, and MCP/SCP ratio were found to be lower in patients with MSA. For PSP, cerebral interpeduncular angle has a sensitivity of 100% and specifity of 90%, and MRPI had a sensitivity of 88.9% and specifity of 100% for PSP. Discussion: Several MRI-derived parameters can be used in differentiation of patients with PSP from patients with PD, MSA and control subjects. The cerebral interpeduncular angle and MRPI, which demonstrated higher values in patients with PSP, were more significant for PSP than the other parameters Daha fazlası Daha az

Cranial MRI findings of severe HELLP syndrome treated with plasmapheresis [Plazmaferez ile tedavi edilen agir HELLP sendromunda kranial MRG bulgulari]

Özer Y. | Özer T. | Altunkaya H. | Demirel C.B. | Çukdar G. | Özkoçak I.

Article | 2005 | Journal of the Turkish German Gynecology Association6 ( 3 ) , pp.238 - 241

We present a case of severe postpartum HELLP (hemolysis, elevated liver enzymes, low platelets) syndrome associated with central nervous system symptoms. Cerebral manifestations of HELLP syndrome and relevant radiological findings were discussed. Microvascular endothelial damage causes hemolysis of red blood cell and subsequent thrombosis occurs in the pathophysiology of syndrome. Diffuse symmetric hyperintensities in bilaterally basal ganglions, fronto-parieto-occipital cortical and subcortical white matter were illustrated on T2 weighted magnetic resonance imaging (MRI) of our case. Diffusion weighted images showed that these abno . . .rmalities are areas of vasogenic edema accompanied by focal cytotoxic edema with diffusion restriction. Plasma exchange was resulted in a steady improvement. This case illustrates the potential importance of early diagnosis with diffusion weighted imaging and management of pregnancy-related thrombotic microangiopathy for better neurological outcome Daha fazlası Daha az

Small colorectal liver metastases: Detection with SPIO-enhanced MRI in comparison with gadobenate dimeglumine-enhanced MRI and CT imaging

Hekimoglu K. | Ustundag Y. | Dusak A. | Kalaycioglu B. | Besir H. | Engin H. | Erdem O.

Article | 2011 | European Journal of Radiology77 ( 3 ) , pp.468 - 472

The aim of this prospective study was to compare the diagnostic role of superparamagnetic iron oxide (SPIO)-enhanced liver magnetic resonance imaging (MRI) versus gadobenate dimeglumine (GbD)-enhanced MRI and computed tomography (CT) investigations for detection of small (less than 1 cm) colorectal liver metastases (LMs) of colorectal cancer. Seventy-eight LMs in 16 patients were evaluated with dynamic CT imaging, GbD-enhanced dynamic MR imaging and SPIO-enhanced MR imaging. Two radiologists were reviewed the LMs seperately. Agreement between the readers and three algorithms was analyzed. Differences between the lesion detection rat . . .ios of the methods were analyzed by two proportion z test. Sensitivity values of each modality were also calculated. Interobserver agreement values with kappa analysis were found to be the best for three modalities and kappa values were 0.866, 0.843, and 1.0 respectively. For all 78 LMs, SPIO-enhanced MRI detected all lesions (100% sensitivity). This sensitivity value was higher than GbD-enhanced MRI, and there was a significant difference (p < 0.05). GbD-enhanced MRI depicted 71 lesions and this modality could not detected 7 lesions (91% sensitivity). This modality had moderate sensitivity, and this value is greater than CT imaging, so there was a significant difference also (p < 0.05). Dynamic triphasic CT imaging detected 64 (R1) and 65 (R2) LMs. This modality had the lowest sensitivity (R1: 0.82, R2: 0.83 respectively). Only SPIO-enhanced MRI was able to detect all LMs less than 1 cm. LMs were the best detected with SPIO-enhanced MRI. We recommend SPIO-enhanced MRI to be the primary alternative modality especially for diagnosis of small colorectal LMs. © 2009 Elsevier Ireland Ltd. All rights reserved Daha fazlası Daha az

T2-hypointense dot sign: A novel and highly suggestive clue for the diagnosis of ovarian torsion

Bekci, Tumay | Unal, Emre | Polat, Ahmet Veysel

Article | 2019 | CLINICAL IMAGING56 , pp.69 - 72

23rd Annual Meeting of the Turkish-Society-of-Magnetic-Resonance -- MAY 10-12, 2018 -- Ankara, TURKEY WOS: 000478106500012 PubMed: 30933848

Influence of age and sex on lumbar vertebral morphometry determined using sagittal magnetic resonance imaging

Sevinc O. | Barut C. | Is M. | Eryoruk N. | Safak A.A.

Article | 2008 | Annals of Anatomy190 ( 3 ) , pp.277 - 283

We evaluated age-related changes in the morphometric features of lumbar vertebrae in both sexes using magnetic resonance imaging (MRI). Midsagittal MRI scans of 366 individuals (156 males, 210 females; 25-82 years old) were evaluated retrospectively. The anterior height (Ha), central height (Hc), posterior height (Hp), and anteroposterior diameter (D) of the body of each lumbar vertebra were measured. These measurements were used to calculate three indices, namely, the anterior wedge index (Ha/Hp), the biconcavity index (Hc/Hp), and the compression index (Hp/D). The values of each of the three indices for the upper lumbar vertebrae . . .of females were higher than those of the same vertebrae in males. The values of the compression index for all lumbar vertebrae decreased with age in females, whereas in males the compression index of the L1-L4 vertebrae decreased with age. No significant changes were observed in the value of the anterior wedge index in either sex. The biconcavity indices of the L1 and L5 vertebrae decreased with age in males. These results may be useful for evaluating age-related morphological changes that occur in the lumbar vertebrae. © 2007 Elsevier GmbH. All rights reserved Daha fazlası Daha az

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