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Öğe Accuracy of skeletal age assessment in children from birth to 6 years of age with the ultrasonographic version of the Greulich-Pyle atlas(Amer Inst Ultrasound Medicine, 2003) Bilgili, Y.; Hizel, S.; Kara, S.A.; Sanli, G.; Erdal, H.H.; Altinok, D.Objectives. For the evaluation of skeletal age, the methods of Greulich-Pyle and Tanner-Whitehouse are generally used in clinical practice. Our investigation was undertaken to determine whether the ultrasonographic version of the Greulich-Pyle atlas is capable of assessing skeletal age. If so, we aimed to describe the standards for the ultrasonographic version of the Greulich-Pyle atlas for each year during the first 6 years of life. Methods. Ninety-seven subjects underwent left hand and wrist radiography and ultrasonographic examination for bone age assessment during a 1.5-year study. Estimated bone ages derived from the plain radiography and "hand and wrist ultrasonography charts" interpreted by use of the Greulich-Pyle atlas were compared statistically. Results. The estimated bone ages from plain radiography and hand and wrist ultrasonography charts interpreted by use of the Greulich-Pyle atlas were significantly correlated; 71.1% of male patients had the same age in both methods, and in 84.4% of patients, the difference was less than 6 months. In 65.5% of female patients, both methods revealed the same age, and in 88.5% of them, the difference was less then 6 months. Conclusions. The ultrasonographic version of the Greulich-Pyle atlas can be used to estimate bone age even in ultrasonography departments. This method is highly correlated and a valid alternative to plain radiography for bone age estimation. This enables estimation of skeletal age in ultrasonography departments easily without exposing the patient to radiation.Öğe Bilateral calcaneal intraosseous lipoma: A case report(Amer Orthopaedic Foot & Ankle Soc, Inc, 2002) Yildiz, H.Y.; Altinok, D.; Sağlık, Y.Intraosseous lipoma is a rare benign primary lesion of bone. Approximately 180 cases have been reported to date. In the literature, we have been able to find only three patients with bilateral calcaneal involvement. We present a 34-year-old woman who was diagnosed with intra-osseous lipoma in both calcanei.Öğe Change in retrobulbar circulation during menstrual cycle assessed by Doppler ultrasound(Elsevier Science Inc, 2002) Karadeniz, M.Y.; Yücel, A.; Kara, S.A.; Noyan, V.; Altinok, D.; Ergin, A.; Güney, S.Our purpose was to study the hemodynamic changes in the ophthalmic, central retinal and posterior ciliary arteries during the normal menstrual cycle and to relate the vascular changes to menstrual cycle. A total of 23 healthy women underwent serial color Doppler ultrasonography at least six times during a normal menstrual cycle, twice each in follicular, ovulatory and luteal phases. Pulsatility and resistance index and peak systolic velocity of the each arteries were assessed with color Doppler imaging. There was no statistical difference in any of the parameters during the menstrual cycle. This was supposed to be because generalized hormonal effects on heart rate, blood pressure, blood volume, cardiac output and on the diameter of the vessel cancel each other and this effect maintains the same ocular blood flow and perfusion during the menstrual cycle. (E-mail: mykaradeniz@hotmai.com) (C) 2002 World Federation for Ultrasound in Medicine Biology.Öğe Color Doppler sonography of orbital and vertebral arteries in migraineurs without aura(John Wiley & Sons Inc, 2003) Kara, S.A.; Erdemoglu, A.K.; Karadeniz, M.Y.; Altinok, D.Purpose. The objective of this study was to investigate whether the retrobulbar hemodynamics in the ophthalmic (OA), posterior ciliary (PCA), central retinal (CRA), and vertebral (VA) arteries are affected in migraineurs without aura. Methods. The eyes of migraineurs without aura and those of healthy control subjects were evaluated during both headache and headache-free periods. Retrobulbar and vertebral blood flow velocities in the OA, PCA, CRA, and the extracranial part of the VA were measured bilaterally using color Doppler sonography. The peak systolic and end-diastolic flow velocities and the pulsatility (PI) and resistance (RI) indices were determined for all arteries. Results. In total, we enrolled 30 migraineurs and 31 healthy control subjects. Statistically significant differences between headache-free migraineurs and control subjects were observed in the PI and RI of both right and left PCAs and in the RI of both right and left CRAs. The PI and RI of the left VA of the migraineurs were significantly lower during both headache and headache-free periods than were those of the control subjects. Among the migraineurs, the peak systolic and end-diastolic velocities of the left VA were increased during headache periods relative to those found during the headache-free periods. Conclusions. The retrobulbar circulation and flow hemodynamics in the left VA may be altered in both headache and headache-free periods in migraineurs without aura. The differences found between migraineurs and control subjects may implicate autonomic dysfunction in migraineurs. (C) 2003 Wiley Periodicals, Inc.Öğe Cricoarytenoiditis in rheumatoid arthritis: Radiologic and clinical study(B C Decker Inc, 2003) Bayar, N.; Kara, S.A.; Keles, I.; Koç, C.; Altinok, D.; Orkun, S.The cricoarytenoid (CA) joint involvement in rheumatoid arthritis (RA) is not uncommon. In this study, clinical assessment, laryngeal endoscopy, and high-resolution computed tomography (HRCT) were used in 15 patients with RA to evaluate the diagnostic criteria of CA joint involvement. Symptoms owing to CA joint involvement were present in 66.6% of the patients. The frequency of involvement was 13.3% on laryngeal endoscopy but 80.0% with HRCT assessment. The most common HRCT findings were CA prominence (46.6%), density and volume changes (46.6%), and CA subluxation (39.9%). In some of the patients, soft tissue swelling (20%) near the CA joint and narrowing in the piriform sinus (33.3%) were also observed. Radiologic abnormalities related to CA joint involvement generally precede clinical symptomatology. Therefore, HRCT evaluation may be a useful method in the assessment of CA joint involvement in RA patients to exclude possible causes of laryngeal signs and symptoms.Öğe Evaluation of the role of ultrasound machines as a source of nosocomial and cross-infection(Lippincott Williams & Wilkins, 2001) Karadeniz, Y.M.; Kılıç, D.; Altan, S.K.; Altinok, D.; Güney, E.RATIONALE AND OBJECTIVES. To evaluate the potential role of ultrasonography probes and coupling gel for cross-infection in patients undergoing ultrasonography; to describe a cost-effective method of probe handling; and to emphasize the importance of position of the probes in the boxes. METHODS. Cultures were taken from 43 probes used in different scanning regions. Cultures were also taken from probe boxes and coupling get. RESULTS. After abdominal scanning, cleaning with paper seems to be effective, but even wiping with alcohol is insufficient for inguinal and axillar regions. Before scanning of these areas is started, cleaning the inguinal and axillar regions with alcohol reduces the contamination risk. Placing the probes downward in boxes also increases the risk of contamination. CONCLUSIONS. Wiping the probes with dry paper seems to be effective only for abdominal scanning; for inguinal and axillar scanning, cleaning the region with alcohol before scanning seems more appropriate. Placing the probes downward in boxes may also be a source of contamination.Öğe Magnetic resonance imaging of the intratemporal facial nerve in idiopathic peripheral facial palsy(Elsevier Science Inc, 2003) Yetiser, S.; Kazkayas, M.; Altinok, D.; Karadeniz, Y.The aim of this study was to investigate the prevalence of facial nerve involvement with gadolinium-enhanced magnetic resonance imaging (Gd-MRI) in patients with idiopathic peripheral facial palsy (IPFP), and to discuss the localization and the pattern of enhancement. A total of 13 patients (9 female, 4 male) with IFPF were included in this study. Topographic tests and electromyography (EMG) were performed, and MRI was taken. Ten subjects whose cranial MRIs were taken for nonorganic pathology served as the control group. Twelve of 13 paralytic facial nerves had enhancement on postcontrast images. Two facial nerves of the control group demonstrated enhancement. We found a correlation between the enhancement of the facial nerve and the time for recovery. The average time from the onset of facial palsy to the recovery in patients with enhancement was 14 weeks, whereas it was 6 weeks in patient with no enhancement. Finally, all patients had complete recovery of the facial nerve function. We concluded that contrast enhancement of the paralytic facial nerve can be a radiological sign of a neural inflammation and may indicate a prolonged recovery. (C) 2003 Elsevier Science Inc. All rights reserved.Öğe Resistance index in fetal interlobar renal artery with renal pelvic dilatation up to 10 MM(John Wiley & Sons Inc, 2003) Kara, S.A.; Noyan, V.; Karadeniz, Y.; Yücel, A.; Altinok, D.; Bayram, M.Purpose. The purpose of this study was to compare the resistance indices (RIs) in the fetal interlobar renal arteries (IRAs) of third-trimester fetuses with or without pelvicaliceal dilatation of up to 10 mm and to compare them with those of the full-term healthy infants. Methods. Women with uncomplicated, low-risk, singleton third-trimester pregnancies were examined sonographically. The RIs in the IRAs were measured in the fetuses, who were stratified into 3 groups according to the anteroposterior diameter of the renal pelvic dilatation: group I, no dilatation; group II, 1-5-mm dilatation, and group III, 6-10-mm dilatation. Results. In total, 178 women were examined. We could study both kidneys in 139 of the fetuses; in the other 39, only 1 kidney could be imaged perfectly. This yielded a total of 317 kidneys. Group I fetuses included 172 (54%); group II, 98 (31%); and group III, 47 (15%) of the kidneys. The mean ( standard deviation) RIs in the IRAs were 0.81 +/- 0.09, 0.80 +/- 0.07, and 0.80 +/- 0.06 in the 3 groups, respectively, with no statistically significant difference between the groups (p = 0.72). There was also no statistically significant difference between the RIs recorded in the right and left kidneys. The mean RI in the IRAs of the 34 infants who were available for follow-up 6-12 weeks after delivery was 0.73 +/- 0.07, which was significantly less than that recorded in the third-trimester fetuses (P = 0.005). Conclusions. The RI in the fetal IRA does not differ in fetuses with and without renal pelvic dilatation of up to 10 mm. Thus, an increase in the RI or an RI that significantly differs between the right and left kidneys should be investigated further for possible renal pathology. (C) 2003 Wiley Periodicals, Inc.Öğe Sildenafil citrate for penile hemodynamic determination: An alternative to intracavernosal agents in Doppler ultrasound evaluation of erectile dysfunction - Reply (editorial material)(Elsevier Science Inc, 2001) Basar, M.M.; Batislam, E.; Altinok, D.; Yilmaz, E.; Basar, H.…Öğe Sinonasal ossifying fibroma with fluid-fluid levels on MR images(Amer Soc Neuroradiology, 2003) Kendi, A.T.K.; Kara, S.; Altinok, D.; Keskil, S.Ossifying fibroma is a rare benign neoplasm that usually affects mandibular and maxillary bones. In this report, we present a case of sinonasal ossifying fibroma with fluid-fluid levels and posterior extension toward the torus tubarius on MR images.Öğe Temporomandibular joint involvement in rheumatoid arthritis: A radiological and clinical study(Taylor & Francis Ltd, 2002) Bayar, N.; Kara, S.A.; Keleş, I.; Koç, M.C.; Altinok, D.; Orkun, S.Temporomandibular joint (TMJ) involvement in rheumatoid arthritis (RA) is not uncommon. In this study a questionnaire, clinical assessment, and high resolution computerized tomography (HRCT) were used in 15 patients with rheumatoid arthritis to evaluate the diagnostic criteria of TMJ involvement. Symptoms due to TMJ involvement were present in 33.3% of the patients. Frequency of involvement was 40.0% on clinical assessment but 86.6% with HRCT assessment. The most common HRCT findings were decreases in the joint space (33.3%) mandibular subchondral cysts (23.3%), temporal subchondral cysts (23.3%), degeneration (23.3%), shape (13.3%) and height (13.3%) anomalies of the mandibular condyle, condylar head resorption (13.3%), erosion of the mandibular condyle (13.3%), and demineralization (13.3%). All patients with positive clinical findings also had positive HRCT patients, there were no symptoms or clinical findings implying TMJ findings. In seven (46.7%) of the involvement; however, they had positive results on HRCT evaluation. The HRCT findings may be the initial sign of TMJ involvement in patients with rheumatoid arthritis. In conclusion, it is suggested that RA patients with the suspicion of TMJ involvement should undergo HRCT evaluation, because HRCT findings may precede the clinical findings.Öğe Ultrasonographic findings in pediatric fractures(Turkish J Pediatrics, 2003) Eksioglu, F.; Altinok, D.; Uslu, M.M.; Gudemez, E.The aim of this study was to document and, analyze ultrasonographic (US) findings in different types of pediatric, fractures. Thirty-nine patients, aged between 1 and 14 years, with a fracture were included in the study. Patients were classified as complete or incomplete fractures. Greenstick fractures, torus fractures and plastic deformations were considered as incomplete fractures.. Ultrasonographic findings (subperiosteal hematoma, bending, cortical disruption, and reverberating echo) were analysed for each type of fracture. Subperiosteal hematoma was present in all patients in the study. Bending sign was present in all patients in the incomplete fracture group, but not present in complete fractures. Cortical disruption and reverberating echo were present in all patients with complete and greenstick fractures. In conclusion, whether the fracture is complete or incomplete, subperiosteal hematoma, together with a cortical disruption, bending sign, or reverberating echo shown on US. can confirm the fracture diagnosis in children.
