Yazar "Cermik, TF" seçeneğine göre listele
Listeleniyor 1 - 11 / 11
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe 99mTc-HMPAO single photon emission computed tomography (SPECT) in both asphyxiated and epileptic children with or without status epilepticus(Sage Publications Inc, 2005) Öner, N; Cermik, TF; Alpay, M; Turan, Ç; Aladag, N; Karasalihoglu, SIn this study, technetium 99m hexamethylpropyleneamine oxime (Tc-99m-HMPAO) single photon emission computed tomography (SPECT) was performed on 18 asphyxiated and epileptic children who also had a status epilepticus episode, and the results were compared with those for 21 children without a status epilepticus episode. All patients underwent a detailed neurologic history, interictal electroencephalography, computed tomography, and/or magnetic resonance imaging. Visual evaluation of the SPECT study showed that 16 patients of group 1 had 56 hypoperfused regions in cerebral blood flow. However, in group 2, visual evaluation showed only six detectable hypoperfusion areas in five patients. When an asymmetric index value of 3 was considered as a cutoff point, 82 regions in group 1 and 57 regions in group 2 were above this value after the quantitative SPECT evaluation. The mean number of pathologic brain regions was found to be higher in group 1 (5.1 +/- 4.3) than in group 2 (2.7 +/- 2.4) (P = .014). The localization of hypoperfused regions that were observed in temporal and frontal regions was generally similar in both groups. In conclusion, the functional activities of the brain vary in both asphyetic and epileptic children, with and without status epilepticus. These children might be candidates for refractory convulsive disease, and interictal SPECT can be a reliable method for the detection of brain lesions in these patients.Öğe Accumulation of Tc-99m HIG in brucellosis(Lippincott Williams & Wilkins, 1998) Sarikaya, A; Cermik, TF; Otkun, M; Ogutlu, A; Pekindil, G; Berkarda, S[Abstract Not Available]Öğe Assessment of Tc-99m sestamibi tumor tissue uptake under the influence of increased arterial oxygen saturation(Elsevier Science Inc, 2005) Cermik, TF; Altiay, G; Firat, MF; Hatipoglu, ON; Berkarda, SThe aim of this study is to investigate the potential effect of increased arterial saturation of oxygen in the magnitude of technetium-99m-hexakis-isobutyl-isonitrile ((99)mTc-MIBI) uptake in tumor tissue and to compare the results with those of conventional Tc-99m-MIBI tumor imaging in the same patient with lung cancer. A total of 26 lung cancer patients underwent initial SPECT (I-SPECT) and after oxygen inhalation SPECT (O-2-SPECT). The early (ER) and delayed ratios (DR) Of O-2-SPECT mean +/- S.D. were significantly higher than those of I-SPECT mean +/- S.D. (2.07 +/- 0.57 vs. 1.90 +/- 0.48 and 2.02 +/- 0.45 vs. 1.83 +/- 0.39, respectively). There are increased rates for the relative tumor uptake of Tc-99m-MIBI by 9% for ER and 10% for DR on the O-2-SPECT compared to I-SPECT. We found that 99mTc-MIBI uptake increased significantly in the tumor tissue with O-2-SPECT compared to I-SPECT. In conclusion, 99mTc-MIBI scintigraphy is one of the main methods for differentiating viable and nonviable tissue fractions in tumors. We consider that 99mTc-MIBI uptake increase after oxygen inhalation is an indicator of positive acute cellular response of the tumor tissue to the rising tissue oxygen level. (c) 2005 Elsevier Inc. All rights reserved.Öğe Determination of scintigraphic parameters in normal population according to age and gender by using quantitative salivary gland scintigraphy summary(Springer, 2004) Firat, MF; Sarikaya, A; Cermik, TF; Berkarda, S[Abstract Not Available]Öğe Evaluation of the factors effecting uptake of Tc-99m MIBI in hyperparathyroidism(Springer, 2004) Cermik, TF; Puyan, FO; Sezer, A; Firat, MF; Berkarda, S[Abstract Not Available]Öğe Idiopathic osteonecrosis of the second metacarpal head detected on bone scintigraphy(Lippincott Williams & Wilkins, 2004) Cermik, TF; Firat, MFA 29-year-old woman had pain and limited range of motion in the metacarpophalangeal joint of the left second finger for 3 months. The patient had no previous trauma, and there were no factors that could be the cause of her disease. Examination revealed tenderness over the second metacarpophalangeal joint. For the evaluation of pain, x-ray and 3-phase bone scintigraphy were performed. X-rays showed an osteolytic lesion in the head of the left second metacarpal, and a bone scan showed increased activity at the same site. It was determined to be osteonecrosis.Öğe Increased Tc-99m MIBI uptake in atelectatic lung: A pitfall in scintigraphic evaluation of central bronchogenic carcinoma(Lippincott Williams & Wilkins, 1998) Sarikaya, A; Pekindil, G; Gumuser, FG; Cermik, TF; Erkmen, N; Alemdar, A; Kaya, M[Abstract Not Available]Öğe Relation between Tc-99m sestamibi uptake and biological factors in hyperparathyroidism(Japanese Society Nuclear Medicine, 2005) Cermik, TF; Puyan, FO; Sezer, A; Firat, MF; Berkarda, SThe aim of this study was to evaluate the relation between uptake ratios of Tc-99m sestamibi (MIBI) and tumor volume, serum biochemical values (i-PTH, Ca, P) and oxyphil cell content. Materials and Methods: The study population consisted of 19 patients (2 M, 17 F; mean +/- SD: 47 +/- 12 y). Anterior planar images of the neck and chest were acquired early (15 min) and triple late phase (1, 2 and 3-4 h) after intravenous injections of 740 MBq MIBI. Each of the surgical materials was reviewed retrospectively. The percentage of cell type (chief, oxyphil and clear cells) in the tumors was calculated by light microscopy. Results: The uptake ratio obtained from L I (1 hour) phase was found to be higher than the uptake ratio obtained from early phase, and the difference was statistically significant (1.57 +/- 0.34 and 1.43 +/- 0.29, p = 0.004, respectively). There was no significant correlation between uptake ratios that were obtained from 4 different imaging phases and lesion volumes, i-PTH levels and calcium levels (p > 0.05). However, there was a significant adverse correlation between L2 and L3 uptake ratios and serum phosphorus values (r = -0.44, p = 0.04 and r = -0.46, p = 0.04, respectively). Additionally, no significant correlation between MIBI uptake ratios of each imaging phase and the laboratory data, volume of lesion or oxyphil percentage volume was found after the multiple regression analysis (E: p = 0.46, r = 0.49; L1: p = 0.24, r = 0.58; L2: p = 0.27, r = 0.57; L3: p = 0.32, r = 0.55, respectively. There was no correlation between gland oxyphil percentage volume and MIBI uptake ratios (p > 0.05). Conclusion: The results of our study show that the optimal imaging times after intravenous injection of MIBI are 15 minutes and I hour because of the shorter examination time without loss of diagnostic ability. In the present study, there was no significant correlation between MIBI uptake ratios and increased gland volume, or serum Ca and i-PTH levels. Besides, we think that oxyphil cell content may not have a main effect on MIBI uptake and retention. The fact of an adverse relation between phosphorus and MIBI retention in our study suggests that phosphorus level should be considered prior to MIBI imaging.Öğe Tc-99m HMPAO brain SPECT findings in epileptic patients with hypoxic ischemic encephalopathy in the neonatal period(Springer, 2004) Cermik, TF; Oner, N; Alpay, M; Turan, C; Firat, MF; Aladag, N[Abstract Not Available]Öğe Tc-99m MDP and Tl-201 scintigraphy in a case of metastatic meningeal hemangiopericytoma(Lippincott Williams & Wilkins, 2001) Kaya, M; Cermik, TF; Hacimahmutoglu, S; Salan, A; Saridogan, K; Cakir, B; Yigitbasi, ON[Abstract Not Available]Öğe Tc-99m MIBI accumulation in myositis ossificans(Lippincott Williams & Wilkins, 1998) Sarikaya, A; Gurbuz, H; Cermik, TF; Pekindil, G; Demiral, H; Gumuser, FG; Erkmen, N[Abstract Not Available]