This study demonstrates a first example of silver nanowire coated wool fibers for wearable electronic applications. Silver nanowires were synthesized according to the polyol method and then drop casted on knitted wool fabrics. Electronic properties of the knitted samples were investigated under cyclic bending conditions. Conductive fabrics were isolated with a dielectric material and used as capacitance to measure respiration and finger motions. In addition, the same capacitor was employed as a pressure sensor and touch-based sensor for lighting up an LED. This study demonstrates that silver nanowire coated knitted wool fabrics can be used in electronic textiles not only as a flexible electrode but also as a capacitor for different applications.

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Objectives: Gastrointestinal bleeding (GIB) is a life-threatening problem that requires a multidisciplinary approach for successful treatment. This study aims to emphasize the clinical contribution of single photon emission computed tomography/computed tomography (SPECT/CT) for the diagnosis of acute bleeding. Methods: All 14 patients referred to the nuclear medicine department in 3 years with suspicion of acute GIB were evaluated retrospectively. Clinical records were analyzed to assess the scintigraphic findings, emphasizing the correlative contribution of the CT portion on SPECT/CT studies. Results: Five patients were negative on dynamic and static planar images. SPECT/CT was performed in 9 patients who had positive findings on planar imaging. SPECT/CT could identify the same bleeding site originating from the anastomosis in four patients with a history of abdominal surgery. SPECT/CT confirmed bleeding from the cecum in a patient with cervical cancer. SPECT/CT showed the bleeding focus in the bladder neck of a patient with bladder cancer and the bleeding from peritoneal metastases of a patient with gastric cancer. In 1 patient, the right upper quadrant activity accumulation, which may cause false positives, was found to be the gallbladder on SPECT/CT. Delayed images showed the true bleeding focus in the cecum. In 1 patient, suspicious activity accumulation in the midline of the abdomen was found to be due to a previously unknown aortic aneurysm on SPECT/CT. Conclusion: SPECT/CT imaging is a feasible technique to facilitate image interpretation in patients with GIB. SPECT/CT imaging can guide the surgeon through more accurate localization. Therefore, for proper patient management, SPECT/CT should be applied to detect the bleeding focus, if present, especially in patients who had undergone a previous operation.

Objective: To determine the effect of preoperative fasting times on patient comfort. Method: This descriptive study was carried out with a total of 232 patients who were hospitalized and operated in a surgical clinic of a university hospital in Aydın, between January 17, and February 16, 2017. Data were collected with "Patient Information Form" and "Perianesthesia Comfort Scale". In the analysis, descriptive statistics and Spearman correlation statistics were used because the variables to be examined in the analysis did not show normal distribution in Shapiro-Wilk test. Results: Most (81.9%) of the patients participating in the study underwent elective surgery and 52.2% of them received general anesthesia. It was determined that 88.4% of the patients had drunk water at the latest , 25% of them were very thirsty, 15.5% felt starving and 7.3% of them experienced headaches. While 96.6% of the patients were informed about the fasting before the operation, 42.7% stated that they received this information from the nurse but 74.6% did not know why they should be on empty stomach before the surgery. Mean preoperative fasting period was 14.80±6.06 hours, mean duration of lfluid fasting was 11.89±4.91 hours, and Perianesthesia Comfort Scale score was 118.90±12.50. There was no correlation between fasting periods of the patients for solid foods, and liquid foods and perianesthesia comfort scale scores. Conclusion: Despite prolonged preoperative fasting period higher Perianesthesia Comfort Scale scores demonstrate that perianesthesia alone has no effect on patient comfort.

Objective 68Ga-PSMA-PET/CT is a relatively new technique, that is rapidly becoming widespread. We aimed to contribute interobserver–intraobserver agreement of 68Ga-PSMA-PET/CT, among low/high-experienced interpreters. Methods 68Ga-PSMA-PET/CT of 56 patients with prostate cancer were evaluated blindly by four observers. Visual interpretation of malignant disease and SUVmax for lymph node (LN) regions, local tumor, bones and visceral organs were recorded. Cohen’s Kappa and Fleiss’ Kappa analyses were used to measure agreement between low/high/all-experienced observers. Variations were compared for regions, and the effect of prostate-specific antigen or Gleason score on the results was investigated. Results Interobserver agreement was almost perfect for all LN regions (LN1 low-experienced κ: 0.84/0.84, high-experienced 0.89/0.96; LN2 low-experienced κ: 0.88/0.79, high-experienced 0.95/0.95; LN3 low-experienced κ: 0.84/0.89, high-experienced 0.87/0.94, first/second readings, respectively) and bone lesions (low-experienced κ: 0.88/0.88, high-experienced 0.92/0.92, first/second readings, respectively). For local tumor, interobserver agreement was substantially-almost perfect among a high-experienced group (κ: 0.74/0.89, first/second readings, respectively), and was moderate-substantial among a low-experienced group (κ: 0.62/0.56, first/second readings, respectively). Intraobserver agreement was almost perfect for three observers for all regions and substantial for the observer with the lowest experience in LN3, local and visceral lesions (κ: 0.74/0.79/0.62, respectively). Conclusion Interpretation of prostate-specific membrane antigen (PSMA) for prostate cancer is acceptably consistent among observers, but some details are noteworthy. The evaluation should be done more algorithmically for local tumors, since all observers showed relatively lower agreement. The agreement increased as prostate-specific antigen and Gleason score increased. The observer with PSMA experience <30 readings showed lower reliability, distinct from the others. This indicates that although a reader may be familiar with other PET agents, a more consistent interpretation of 68Ga-PSMA-PET/CT requires training with a small number of identified cases.