Incidentally discovered thyroid nodules: frequency in an adult population during Doppler ultrasonographic evaluation of cervical vessels

WOS: 000331638200012PubMed ID: 23563922In this study, the frequency of thyroid nodules was searched in a population of consecutive patients undergoing routine cervical Doppler evaluation with the use of high-end color Doppler ultrasound units equipped with new technologies that increase nodule conspicuity. Three hundred and fifteen subjects, who had been referred for Doppler ultrasonography of cervical vessel examination, were enrolled in the study. During the examinations, the presence or absence of thyroid nodules, if present, their number (as "single" or "multiple''), the longest diameter, and internal echo pattern of the largest nodule were noted. As a result, one hundred and sixty-one subjects (51 %) were shown to have at least one thyroid nodule. In this subgroup, 54 cases had single and 107 cases had multiple nodules. Incidental thyroid nodules were detected in similar ratios in both men and women (p = 0.34). The results of the study led to the conclusion that half of the elder adult population had at least one thyroid nodule. Use of ultrasound technologies with increasing resolution seems to help significantly in detecting and also evaluating smaller and previously unknown nodules

COVID-19 radiology CT personnel management

Ozbek, Suha Sureyya/0000-0002-3351-4150; Ozdemir, Halil ibrahim/0000-0002-3336-6848WOS:000629039700023PubMed: 33290241A new coronavirus outbreak called COVID-19 started in December 2019. in Turkey, the first case was reported on 10 March 2020. in this article, information will be given about the patient and staff management and organization that we have implemented in the Radiology Department of our hospital during the COVID-19 pandemic. The rules we followed were: 1-Performing the examinations of COVID-19 patients and suspects with a CT device isolated from other patients; 2-Reducing the unnecessary workload in imaging modalities other than CT, emergency radiography, and emergency ultrasonography; 3-Directing and managing patients and their relatives in accordance with the mask and distancing rules; 4-Disinfecting the device with an appropriate disinfectant after each patient in order to prevent cross-contamination; 5-Protecting the entire technician team from infection by employing one week work, two weeks off shifts of fixed teams; 6-Ensuring adequate ventilation of the gantry room. Adhering to the above rules, no infection spread was reported from the Radiology department and especially the COVID-19 CT unit

Scintigraphic and Sonographic Findings of Subcapsular Cortical Necrosis in a Transplanted Kidney

WOS: 000435346400034PubMed ID: 2965939

Reply re: "Anterior Segment Ischemia and Retinochoroidal Vascular Occlusion After Intralesional Steroid Injection"

WOS: 000266313900031PubMed ID: 2664947

US findings in euthyroid patients with positive antithyroid autoantibody tests compared to normal and hypothyroid cases

WOS: 000321103300001PubMed ID: 23302287PURPOSE We aimed to compare the ultrasonographic and laboratory parameters of euthyroid patients who have only positive antithyroid autoantibody test results with those of patients with a hypothyroid status of Hashimoto's thyroiditis (HT). MATERIALS AND METHODS Thirty-five patients with newly diagnosed HT, 35 euthyroid patients who have autoantibodies against thyroid peroxidase (TPOAb) and/or thyroglobulin (TgAb), and 40 controls were enrolled in the study. Plasma free T3, free T4, thyroid stimulating hormone, TPOAb, and TgAb levels were obtained retrospectively. For gray-scale ultrasonography, each thyroid gland of all individuals graded with gray-scale grading (GSG), which was determined according to the gland size, parenchymal structure, echogenicity, micronodulation, contour irregularity, and existence of hyperechoic septa. For Doppler analysis, the peak systolic velocity (S), resistive index (RI), and pulsatility index (PI) values were obtained from the superior thyroid artery (STA) and intrathyroidal artery (ITA). The color pixel ratio (CPR), which was computationally evaluated from a power Doppler image of all individuals, was used for quantification of the intrathyroidal vascularity. RESULTS Although the mean GSG values were higher in the HT and antibody-positive groups than they were in the control group, there was no significant difference between the HT and antibody-positive groups. The three study groups demonstrated no statistically significant difference with regard to the S, RI, or PI variables obtained from the STAs and ITAs. Although the CPR values were highest in the HT group, the difference between the HT and antibody-positive group did not reach statistical significance. CONCLUSION The euthyroid antibody-positive group revealed gray-scale and Doppler ultrasonographic findings that were similar to those of the HT group

Thyroid Function and Ultrasonography Abnormalities in Lithium-Treated Bipolar Patients: A Cross-sectional Study with Healthy Controls

WOS: 000404296300004PubMed ID: 28680307Introduction: Lithium has many effects on thyroid physiology. Although these side effects have been known for a long time, large sample studies of lithium-treated patients using ultrasonography are lacking. The aim of this study is to investigate the detailed thyroid mor-phologies, hormone levels, and antibodies of lithium-treated patients compared with healthy controls. Methods: This cross-sectional study involved 84 lithium-treated patients with bipolar disorder and 65 gender and age similar controls who had never been exposed to lithium. Subjects between 18 and 65 years of age were eligible for the study. Venous blood samples were acquired to determine the levels of free thyroxine (fT4), thyroid stimulating hormone (TSH), and thyroid antibodies; also, ultrasonographic examinations of the patients' thyroid glands were performed. Results: There were no statistically significant differences in smoking habits, known thyroid disease, thyroid medication use, familial thyroid disease, fT4 level, autoimmunity, thyroid nodule presence, or Hashimoto's thyroiditis between the lithium and control groups. The median TSH level and thyroid volume were significantly higher in the lithium group. In the lithium group, 14 cases (16.7%) of hypothyroidism, seven cases (8.3%) of subclinical hypothyroidism, and one case (1.2%) of subclinical hyperthyroidism were defined; in the control group, seven cases (10.8%) of hypothyroidism and two cases (3.1%) of subclinical hyperthyroidism were defined. Thyroid dysfunction, goiter, parenchymal abnormality, ultrasonographically defined thyroid abnormality, and thyroid disorder were found to be more prevalent in the lithium group. 90% of patients with goiter and 74.3% of patients with ultrasonographic pathologies were euthyroid. Conclusion: It is important to note that 90% of the patients with goiter were euthyroid. This indicates that monitoring by blood test alone is insufficient. The prevalence rates of 47.6% for goiter and 83.3% for ultrasonographic pathology demonstrate that ultasonographic follow-up may be useful in lithium-treated patients. To determine whether routine ultrasonographic examination is necessary, large sample prospective studies are necessary due to the limitations of this study.Ege University Scientific Research Project Grant; Psychiatric Association of TurkeyThis study was supported by Ege University Scientific Research Project Grant and Psychiatric Association of Turkey

False-positive I-131 accumulation in a hepatic hydatid cyst

WOS: 000251208500005PubMed ID: 18030043In this report, a case of differentiated thyroid carcinoma having false-positive I-131 accumulation due to a large hydatid cyst in the liver is presented. Abdominal sonographic examination of a 37-year-old patient with differentiated thyroid carcinoma demonstrated an ovoid, complex cystic mass containing cystic parts as well as solid-appearing components in the right lobe of liver, which is concordant with a type CE-3 hydatid cyst. The postablative whole-body scan obtained 10 days after 100 mCi I-131 therapy displayed intense and homogeneous uptake of radioiodine in the liver. Hepatic cystic mass was removed, and postoperative histologic evaluation confirmed hydatid disease. Some cystic lesions of the kidney and liver have been previously reported as causes of false-positive radioiodine accumulation

Evaluation of Renal Transplant Scintigraphy and Resistance Index Performed Within 2 Days After Transplantation in Predicting Long-Term Graft Function

WOS: 000356375000002PubMed ID: 25899587Purpose Value of renal transplant scintigraphy and resistance index (RI) in the assessment of renal graft function is well known. The aim of this study was to evaluate the predictive value of renal transplant scintigraphy and RI for long-term graft function. Materials and Methods A total of 119 patients were analyzed retrospectively. Renal transplant scintigraphy with technetium Tc 99 m DTPA and color Doppler ultrasonography for RI were performed to each patient within 2 days after transplantation. Resistance index and the results of the tests in perfusion/renographic curve analysis of scintigraphy were compared with the serum creatinine (sCr) levels at 3 months, 1 year, and 5 years after transplantation. A sCr level of more than 1.5 mg/dL was considered abnormal. Results Differences of the mean values of T1/2 of graft washout (GW1/2), time difference between peak renal perfusion and arterial count ( increment P), and accumulation index (R20/3) were significantly high in patients with high follow-up sCr (>1.5 mg/dL) (P < 0.01). The correlation of these tests with the follow-up sCr levels was significant (P < 0.01). The number of recipients with high perfusion curve grade was also significant in the follow-up groups with high sCr levels. However, difference of the mean value of RI was insignificant between the follow-up groups, and there was no correlation between the RI and sCr levels. Conclusion Renal transplant scintigraphy performed within 2 days after transplantation is useful in the prediction of long-term graft function at 3 months, 1 year, and 5 years; and it is superior to resistance index