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Visual evoked potential is superior to triple dose magnetic resonance imaging in the diagnosis of optic nerve involvement 总被引:2,自引:0,他引:2
Acar G Ozakbas S Cakmakci H Idiman F Idiman E 《The International journal of neuroscience》2004,114(8):1025-1033
The aim of this study was to evaluate whether VEP is sensitive to optic neuritis (ON) when compared with triple dose orbital MRI. Twenty-four relapsing-remitting MS (RRMS) patients were included in the study. Group I (n = 10) patients with acute ON, Group II (n = 8): patients presenting with a current relapse who had the history of ON in the previous relapses. Group III (n = 6): patients presenting with a current relapse but with no history of ON. Neuro-ophtalmological evaluation. VEP investigation and orbital MRI with triple dose (0.3 mmol/kg) gadolinium (Gd) were carried out for all. VEP was found to be 70% sensitive and 12.5% specific to the acute ON, whereas orbital MRI with triple dose Gd was 70% sensitive and 100% specific. In chronic ON, the sensitivity of orbital MRI is 0%, whereas the VEP is still 75% sensitive to chronic optic nerve involvement and can distinguish the pathology 100% specifically. In conclusion, orbital MRI with triple dose Gd is not more sensitive than VEP in determining the acute optic nerve pathologies but it is a 100% specific method. The results suggest that VEP is superior to the orbital MRI in determining the chronic optic nerve involvement. 相似文献
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Hepatoblastoma is a rare neoplasm of all pediatric cancers. The goal of treatment is to remove the tumor completely because cure without complete resection is extremely unusual. Accurate assessment of tumor resectability following preoperative chemotherapy is of crucial importance. It is sometimes difficult, especially when the tumor is as large and calcified as in the described case. Detailed radiological imaging such as computed tomography angiography or magnetic resonance angiography is the key for selecting the proper treatment method in hepatoblastoma during the preoperative period. In this article, we report a successfully treated giant calcified hepatoblastoma despite radiological assessment complexity. 相似文献
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Zeynep Isik-Ercan Tuba Demir-Dagdas Huzeyfe Cakmakci Yasemin Cava-Tadik Seyma Intepe-Tingir 《Early child development and care》2017,187(9):1413-1432
This paper examines the issues surrounding low-income immigrants in the U.S. and the ways they shape the educational experiences of their young children. Using a multidisciplinary lens including sociology, family studies, education, and mental health, the authors analyse multiple perspectives towards the educational experiences of children in low-income immigrant families. After providing a sample case study focusing on the educational experiences of Burmese refugee parents with early elementary education (Grades K through 3) in the Midwestern United States, the authors frame desirable responses from policy and practice that would best support the educational experiences of young children in low-income immigrant families including (a) understanding cultural strengths, (b) creating a positive and inclusive classroom environment, (c) supporting bilingual and bicultural competencies, (d) providing immigrant families with leadership opportunities, (e) teacher professional development on mental health and poverty, and (f) building integrated supports for the family. 相似文献
6.
Jannick Rolland Ozan Cakmakci Jeff Covelli Cali Fidopiastis Florian Fournier Ricardo Martins Felix Hamza-Lup Denise Nicholson 《International Journal on Interactive Design and Manufacturing》2007,1(4):239-241
The emergence of several trends, including the increased availability of wireless networks, miniaturization of electronics
and sensing technologies, and novel input and output devices, is creating a demand for integrated, fulltime displays for use
across a wide range of applications, including collaborative environments. In this paper, we present and discuss emerging
visualization methods we are developing particularly as they relate to deployable displays and displays worn on the body to
support mobile users. 相似文献
7.
Caliceal diverticulum is a rare disorder in which a urine-filled cavity is connected to the renal calix by a narrow isthmus. Treatment of caliceal diverticulum varies depending on the complications, which include recurrent kidney infections, hematuria, and symptomatic calculi. The use of sonography may be insufficient for accurately diagnosing this condition; contrast urography, CT, or both also may be needed. We report the cases of 2 pediatric patients whose initial sonographic diagnosis was renal cystic disease but whose final diagnosis was caliceal diverticulum on contrast-enhanced urography in 1 case and both urography and CT in the other case. The patients received no further treatment but continue to receive follow-up care to monitor for the presence of infections and calculi. Accurate diagnosis of caliceal diverticulum in both cases spared the patients and their families the psychological burden of unnecessary further investigation of renal cystic disease. These cases emphasize the importance of using contrast-enhanced imaging modalities for confirmation when sonographic findings suggest the presence of renal cystic lesions. 相似文献
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Osman Raif Karabacak Esin Cakmakci Ufuk Ozturk Fuat Demirel Alper Dilli Baki Hekimoglu Ugur Altug 《Canadian Urological Association journal》2011,5(1):34-37
Purpose
Our objective was to assess the accuracy of computed tomographic virtual cystoscopy (CTVC) in the detection of urinary bladder lesions.Methods
Twenty-five patients were examined using CTVC. Bladder scanned using multislice CT at a slice thickness of 1 mm. The data were transferred to a workstation for interactive navigation using surface rendering. Findings obtained from CTVC were compared with results from conventional cystoscopy and with pathological findings.Results
Thirty-eight lesions were identified. The smallest was 0.2 × 0.3 cm; the largest was 7 × 4.5 cm. Both CTVC and conventional cystoscopy were used. Conventional cystoscopy detected the same number of lesions that were detected by CTVC. On morphological examination, 26 of the lesions were polypoid, 7 were sessile and 5 were bladder wall-thickening. While one of the polypoid lesions was reported as an inverted papilloma, 2 of the 5 lesions that were identified as wall-thickening were malignant and 3 were benign. The sensitivity of using CTVC to identify neoplasias was 100%; the accuracy was 89%.Conclusion
Although the definitive diagnosis of some suspected urinary bladder tumours is only possible with conventional cystoscopy and biopsy, CTVC is a minimally invasive technique which provides beneficial information about urinary bladder lesions. 相似文献9.
Pediatric focal xanthogranulomatous pyelonephritis: dynamic contrast-enhanced MRI findings 总被引:2,自引:0,他引:2
Xanthogranulomatous pyelonephritis (XPN) is the result of chronic renal infection. It is very rare in childhood and the focal form, which is said to be more common in children, is often misdiagnosed as a renal tumor. We report a case of a focal XPN in a 14-year-old girl. The true preoperative diagnosis may be very hard in children especially in the focal form but it seems to be possible by the help of dynamic contrast-enhanced MRI. 相似文献
10.
The aim of this study is to determine the frequency of changes in biochemical markers of bone metabolism in children who are receiving valproic acid, carbamazepine, and oxcarbazepine. Thirty healthy children and 68 children with idiopathic epilepsy treated with either carbamazepine (n = 23), valproic acid (n = 31), or oxcarbazepine (n = 14) for more than 1 year were enrolled into the study. Blood samples were obtained in order to determine biochemical parameters (calcium, phosphorus, alkaline phosphates, parathormone, and 25-hydroxyvitamin D). Bone mineral density was measured with the dual-energy x-ray absorptiometry method. There were no significant differences in the serum concentrations of calcium, phosphorus, aspartate aminotransferase, alanine aminotransferase, and albumin levels between the four groups. However, serum alkaline phosphatase concentrations were higher in the patient group as compared with the control subjects. In patients receiving antiepileptic drugs, bone mineral density values were significantly lower than the healthy control group. In conclusion, long-term antiepileptic drug treatment either with valproic acid, carbamazepine, or with oxcarbazepine which has unknown effects on skeletal mineralization, induces a state of decreased bone mineral density. 相似文献