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"The book, written by expert pediatricians and radiologists, is divided into ten chapters covering neurology, cardiology, neonatology, interventional radiology, the abdomen, the musculoskeletal system, the thorax, the genitourinary system, the fetus, and emergencies. Each chapter comprises ten cases that are presented in a standard way. After discussion of the disorder in question, four representative images are displayed and described with special attention to distinctive features. In addition, informative key references are provided, including a book or book chapter, a web link, and ten recent articles. "

"Pemanfaatan CBCT (Cone Beam Computed Tomography) radioterapi adaptif dipengaruhi oleh paremeter akuisisi dan rekonstruksi citra dalam akurasi kalkulasi dosis dan kualitas citra dipelajari dalam penelitian ini. Kurva kalibrasi dihasilkan melalui pemindaian fantom CIRS menggunakan CBCT XVI Elekta 5.0.4 dan CT Simulator Somatom, yang bekerja sebagai citra CT referensi. Fantom Rando dan Catphan dipindai dengan parameter akuisisi dan rekonstruksi yang sama untuk menguji akuasi kalkulasi dosis dan kualitas citra. Pengujian kualitas citra sesuai panduan modul XVI Image Quality Test. Parameter akuisisi dan rekonstruksi memiliki dampak pada nilai HU yang digunakan dalam kurva kalibrasi HU-RED. Perbedaan dosis untuk seluruh kurva kalibrasi di bawah 1% dan lolos kriteria gamma passing rate. Citra yang menggunakan 120 kVp, F1 (dengan Filter Bowtie), dan 50 mA (F1-120-50-10) menghasilkan skor GI tertinggi 98,5%. Pengujian kualitas citra menghasilkan skor sebesar 1,2% pada uji uniformitas, 2.14% pada uji low contrast visibility, dan 11 lp/cm pada tes resolusi spasial. Dengan, protokol rekonstruksi yang berbeda menunjukan skor 3,83% dan 4 lp/cm dalam pengujian low contrast visibility dan resolusi spasial, secara berturut-turut. Parameter rekonstruksi CBCT bekerja sebagai koreksi hamburan (scatter correction). Hal ini meningkatkan akurasi dosis dan kualitas citra. Protokol akuisisi CBCT yang tidak cocok menghasilkan citra dengan ketidakpastian tinggi dan protokol rekonstruksi tidak bisa memperbaikinya. Protokol F1-120-50-10 menghasilkan akurasi dosis dan kualitas citra tertinggi.

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The impact of the modified image acquisition and preset reconstruction parameter available in XVI on improving CBCT image quality and dose calculation accuracy were evaluated. Calibration curves were generated by scanning the CIRS phantom using CBCT XVI Elekta 5.0.4 and CT Simulator Somatom, that served as CT image reference. Rando and Catphan phantom were scanned with same acquisition and reconstruction parameters for dose accuracy and image quality tests. The image quality test is uniformity, low contrast visibility, spatial resolution, and geometrical scale test for each image by following the XVI image quality test module. Acquisition and reconstruction parameters have an impact on the HU value that is used as the HU-RED calibration curve. The dose difference for all the calibration curves was within 1% and passed the gamma passing rate. Images acquired using 120 kVp, F1 (with Bowtie Filter), and 50 mA (F1-120-50-10) scored the highest GI of 98.5%. It also scored 1.20% on the uniformity test, 2.14% on the low contrast visibility test, and 11 lp/cm on the spatial resolution test. However, using different reconstructions the score is 3.83% and 4 lp/cm in contrast and spatial resolution test, respectively. Reconstruction protocls work as a scatter correction. It could improve the dose accuracy and image quality. Nevertheless, without adequate CBCT acquisition protocols, it would produce an image with high uncertainty and cannot be fixed with reconstruction protocols. The F1-120-50-10 protocols generate the highest dose accuracy and image quality."

"This text is designed for courses in medical imaging systems. It is also suitable for professionals seeking an overview of medical imaging systems.With signal processing as its foundation, Medical Imaging Signals and Systems , Second Edition covers the most important imaging modalities in radiology: projection radiography, x-ray computed tomography, nuclear medicine, ultrasound imaging, and magnetic resonance imaging. "