Hasil Pencarian  ::  Simpan CSV :: Kembali

Abstrak :
"Adaptive radiography with trauma, film critique and critical thinking, gives you a fresh perspective on radiographic positioning and critiquing in the real world. Unlike most radiography books, which approach topics in terms of the average patient under near ideal conditions, this text offers strategies and helpful tricks of the trade to employ when "the usual" does not apply. Based on developing adaptive thinking skills, the book shows you how to consider the paradigms and rules of radiology, examining and quantifying those that work while challenging those that don't. Thorough discussions on adapting beam angles, beam divergence, expansion of the light field, and spacial relations in positioning deliver the foundations of radiography and introduce quantifiable, repeatable methods. Adaptive radiography with trauma, film critique and critical thinking, also addresses trauma and mobile radiography and positioning, changes brought about by the advent of digital radiography, routine and trauma skull positioning, and much more. Real-life case studies and critical thinking questions help you apply methods to a variety of issues and clinical settings, developing the problem-solving skills you need for success in any radiographic field." -- Publisher.

Abstrak :
With a special emphasis on the complementary nature of anatomic and functional cardiac data, this book ensures physicians develop the skills they need to interpret cardiac CT images. New chapters address evaluation of the thoracic aorta, congenital heart disease in the adult, triple rule-out CT angiography, and the latest innovations in cardiac CT.

Abstrak :
Summary: Arthritis in Black and White, by Anne C. Brower, MD and Donald J. Flemming, MD, provides you with a concise, practical introduction to the radiographic diagnosis of arthritic disorders. Completely revised, this popular, easy-to-read resource contains high-quality digital radiographs with correlating MRIs throughout and a practical organization that aids in your recognition, diagnosis, and treatment of common arthritides. In print and online at www.expertconsult.com, it is perfect for residents in training and experienced radiologists wishing to refresh their knowledge. Easily reference diagnostic guidance by presenting symptom, see what to look for, and understand how to effectively diagnose the patient. Reference key information quickly and easily thanks to a consistent, user-friendly format and a unique two-part organization (radiologic approaches to specific joints and full description of the individual common arthritides) that facilitates finding the exact information you need for any joint in the body.

Abstrak :
Verifikasi lapangan penyinaran radioterapi merupakan suatu keharusan dalam penjaminan kualitas dari ketidakpastian geometri lapangan pada penyinaran pasien radioterapi. Verifikasi ini umumnya dilakukan menggunakan suatu film khusus. Penelitian ini akan mencoba mengkombinasikan teknologi diagnostic untuk verifikasi perencanaan penyinaran pasien radioterapi menggunakan Kodak CR system. Phantom CIRS sebagai objek dengan luas lapangan 15 x15 cm2 dengan berkas sinar-x 6MV. Melalui metode ini akan didapatkan kombinasi material dan ketebalan untuk mendapatkan gambaran terbaik. Kombinasi tersebut akan digunakan lansung pada pasien dengan variasi kasus penyinaran, antara lain kasus daerah kepala dan leher, payudara dan daerah abdomen bawah yang akan dibandingkan dengan citra DRR?s dari TPS Pinnacle. Hasil penelitian didapatkan kualitas citra yang baik untuk verifikasi dapat membedakan organ spesial serta verifikasi geometri lapangan. Dapat disimpulkan bahwa CR system yang digunakan pada diagnostik dapat dimanfaatkan dalam verifikasi penyinaran radiasi pasien radioterapi dengan berbagai macam keuntungan termasuk keuntungan ekonomi pada pasien. Untuk penyempurnaan penelitian maka diperlukan suatu variasi pada berbagai ketebalan objek lokalisasi serta pemanfaatan variasi berkas sinar (10 MV atau Co-60) yang digunakan pada pelaksanaan lokalisasi. ......Radiation treatment planning field verification are conclusion to manage the problem of geometrical matcing field in radiotherapy. Verification imaging in radiotherapy usually used a special film therapy as an image media. We try to combine diagnostic technology to verification treatment plan of radiotherapy patients using Kodak CR (Computed Radiography) system, a system that use in radiology diagnostic. CIRS phantom was used to simulate a lung cancer patient that will be treated with the field size 15 x 15 cm2 using photon 6 MV. With this phantom, materials and thickness filters were selected in order to get an appropriate image. Between these two selected filters CR imaging plate was used for verifying treatment plans of patients with carcinoma of head-neck, breast, and case lower abdomen area. For evaluation, these verification images were compared with DRR?s from Pinnacle TPS. From examination with CIRS it was determined a combination of filters, quality verification images were found acceptable for recognizing several specific organs. Furthermore the images was also able to verify geometry field matching. Conclusion, CR system can be used for verification of treatment plans of radiotherapy patients. With these system that is common for diagnostic imaging, radiotherapy verification procedures will be economically beneficial for the patients. Future observation variation object thickness needed, and also variation beam (ex, photon 10 MV and Co-60) for localization treatment.

Abstrak :
Penelitian ini bertujuan untuk mendapatkan kombinasi parameter eksposi optimum pada pemeriksaan sinar-x diagnostik menggunakan Computed Radiography (CR). Kombinasi faktor eksposi yang diuji berada dalam rentang 55 kVp-66 kVp dan 15 mAs-24 mAs untuk toraks, 81 kVp-102 kVp dan 8 mAs-20 mAs untuk abdomen, serta filter tambahan 0 mmAl, 1 mm Al + 0.1 mm Cu, 1 mm Al + 0.2 mm Cu, dan 2 mm Al. Figure of Merit (FOM) sebagai rasio antara kuadrat Signal Difference to Noise Ratio (SDNR) dan dosis dipilih sebagai parameter uji, dengan parameter kualitas citra tambahan berupa Modulation Transfer Function (MTF) dan Contrast Consistency (CV). Meskipun didapatkan kombinasi dengan FOM tertinggi, hasil penelitian menunjukkan bahwa FOM tidak dapat digunakan sebagai parameter optimisasi tunggal dan penggunaannya harus disertai parameter lain. Karenanya, diperlukan penelitian lanjutan sebelum metode ini dapat diterapkan secara klinis. ......This study aims to obtain an optimum combination of exposure parameters on diagnostic x-ray examinations using Computed Radiography (CR). The combination of exposure parameters tested were in the range of 55 kVp-66 kVp and 15 mAs-24 mAs for thorax, 81 kVp-102 kVp and 8 mAs-20 mAs for the abdomen, and additional filters 0 mmAl, 1 mm Al + 0.1 mm Cu, 1 mm Al + 0.2 mm Cu, and 2 mm Al. Figure of Merit (FOM) as a ratio between the squared Difference to Noise Ratio (SDNR) signal and the Entrance Surface Dose (ESD) was chosen as optimization parameter alongside with additional image quality parameters such as Modulation Transfer Function (MTF) and Contrast Consistency (CV). Although the combination with the highest FOM was obtained, the results showed that FOM cannot be used as a single optimization parameter and its use must be accompanied by other parameters. Therefore, further research is needed before this method can be applied clinically.

Abstrak :
Essential radiology, third edition , is an extensively revised and updated text that provides a highly engaging, integrated overview of the use of radiology in every specialty and subspecialty, covering all imaging modalities and organ systems. It gives medical students in radiology clerkships a solid understanding of how each imaging modality works and how a variety of pathologic conditions appear on different imaging modalities.