TSR guidelines for the practice of teleradiology: 2021 update*

This update of Turkish Society of Radiology’s (TSR) guidelines for the practice of teleradiology is intended to provide a reference framework for all parties involved in delivering imaging services away from the immediate vicinity of the patient. It includes relevant definitions and general principles, features organizational modes and qualifications of the practicing parties, lists technical issues, and addresses such management and legal aspects as archiving and documentation, security and privacy, reliability, responsibilities, quality inspection and improvement, reimbursement and accountability

Time-efficient subjective testing methodology for 3D video quality assessment

The Institute of Electrical and Electronics Engineers Signal Processing Society23rd IEEE International Conference on Image Processing, ICIP 2016 -- 25 September 2016 through 28 September 2016 -- 125190Quality of Experience assessment in stereoscopic 3D is a challenging topic and existing standards such as ITU-R BT.500 may no longer be appropriate. The paper presents a new methodology for 3D video subjective quality evaluation. The novel method was developed to compare different multi-view video compression technologies. A time-efficient solution was proposed as a multi stimulus plus simultaneous presentation extension of the conventional DSCQS method. Experimental results conducted on an auto-stereoscopic display for H.264 and H.265 based encoders are also provided. The results demonstrate that the new methodology is superior to the DSCQS method in terms of both evaluation time and accuracy. © 2016 IEEE

Perceptual quality assessment of JMVC-encoded multi-view videos on autostereoscopic 3DTVs [JMVC ile Kodlanmiş Çok-Bakişli Videolarin Otostereoskopik 3BTV'lerdeki Algisal Kalite Degerlendirmesi]

24th Signal Processing and Communication Application Conference, SIU 2016 -- 16 May 2016 through 19 May 2016 -- 122605Autostereoscopic 3D is the presentation of depth perception to viewer without eye glasses. The content watched on an autostereoscopic 3DTV, is called multi-view video. A preparation process, referred to as interleaving, interzigging, or multiplexing, is applied to this type of content before being watched on an autoestereoscopic 3DTV. Bitrate requirement of Multi-View Videos is increased due to number of videos. To reduce this increase, MVC extension of H.264/AVC makes use of similarity of views. In this work, a program that processes multi-view videos for available autostereoscopic 3DTV is developed. In order to investigate the effect of different compression qualities on viewer liking, subjective tests are performed according to DSCQS method. Test results are evaluated in order to determine a compression quality that does not effect viewer liking but helps to reduce bitrate required. © 2016 IEEE

Prevalence of and risk factors for low back pain among healthcare workers in Denizli.

OBJECTIVES: The purpose of this study was to examine personal, occupational, and psychosocial risk factors affecting prevalence of low back pain in healthcare workers. METHODS: Study included total of 1682 participants (1010 female, 672 male) working at Denizli State Hospital. Low back pain section of Standardized Nordic Musculoskeletal Questionnaire (SNMA) was used to evaluate recent occurrence, pain experienced within previous year, and over lifetime. Perceived Stress Scale and Job Satisfaction Scale were also administered. RESULTS: Prevalence of lifetime low back pain in healthcare workers was determined to be 53% based on SNMA. It was observed that low back pain was most common among medical secretaries (56.9%). Advanced age, female gender, high body mass index (p=0.002), being married (p=0.0001), lack of regular exercise (p=0.009), working for more than 4 hours while standing (p=0.012) or sitting at desk (p=0.021), using computer for more than 4 hours (p=0.0001), greater number of years of service (p=0.001), and low job satisfaction (p=0.001) were found to be factors increasing low back pain risk. CONCLUSION: Our study demonstrated that healthcare workers are among group with high risk of low back pain

Starch grains in Turkish Betula (birch) and Corylus (hazel) pollens

Giriş: Polenler mevsimsel allerjik rinite neden olan en önemli faktörlerden biridir. Polen allerjenleri, polen tanesinin farklı bölgelerinde bulunabilmektedir. Özellikle polen sitoplazmasında yer alan nişastalar üzerinde bulunan allerjenler, meteorolojik faktörlere bağlı olarak, özellikle yağmurlu havalarda polen dışına çıkabilmektedir. Gereç ve Yöntem: Bu çalışmada önemli allerjik reaksiyonlara neden olan Türkiye’de yetişen Betula ve Corylus polenlerinin sitoplazmasındaki nişasta taneleri ışık ve transmisyon elektron mikroskoplarında incelenmiştir. Bulgular ve Sonuç: Betula ve Corylus poleninde Bet v 1 allerjenlerini taşıyan nişasta taneleri saptanmıştır. Aynı zamanda transmisyon elektron mikroskobunda çekilmiş mikrofotoğraflarda nişasta tanelerinin yanı sıra, ekzin ve intin tabakaları da gözlemlenmiştir.Objective: Pollens are one of the most effective factor that cause seasonal allergic rhinitis. Pollen allergens may localize different parts of pollen. Allergens are especially bind with starch, which localized at cytoplasm can come out of pollen depending on meteorological factors mainly in rainy weather. Materials and Methods: In this study, Betula and Corylus pollens that cause allergic reactions were collected from Turkey, have been studied at light and transmission electron microscopy. Results and Conclusion: Starch grains that carrying Bet v 1 allergens were detected in Betula and Corylus pollen. Shape of grains was prolate-ellipsoidal and 0.5-2 μm in size. Also exine and intine layer of pollen and starch granules were observed in transmission electron microscopy