By J. Daniel Bourland
Image-Guided Radiation Therapy offers key image-guided radiation remedy (IGRT) applied sciences for exterior beam radiotherapy. The publication explores the decades-long technological advancements that experience happened within the realm of image-guided conformal, personalized radiation remedy.
Expert authors, all of whom have actively participated within the improvement or implementation of IGRT, imaging, and allowing applied sciences, percentage their first-hand reports at the technological know-how, scientific makes use of, and influence of those applied sciences. They describe kilovoltage and megavoltage imaging in addition to radiological, ultrasound, and optical applied sciences for settling on and validating goal and sufferer positioning. The e-book examines how anatomical and organic imaging utilizing CT and puppy has contributed to the knowledge of aim quantity barriers and organic habit. It additionally explores such techniques as 4D PET/CT and electronic tomosynthesis.
Advancing sufferer care, this booklet makes a speciality of a wealth of hybrid IGRT applied sciences and units for coupled imaging and therapy contained in the radiation consultation room. It completely covers the modalities, software program instruments, and imaging remedy geometries that represent IGRT.
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Sample text
In addition to its traditional role in prostate localization, US imaging has promise for other treatment sites, including the breast and upper abdomen. Applications for partial breast irradiation appear particularly promising, given the shallow depth of most of these lesions and the need to differentiate soft tissues in this context. 24 Acknowledgments The author acknowledges the contributions of Doug Pfieffer for providing technical details regarding US imaging physics and Ali Bodager for assistance with illustrations and editing.
US is produced through the excitation of piezoelectric crystals contained in the transducer, which serve as both transmitters and receivers. Transducers are generally categorized as linear or curvilinear, depending on the shape of the transducer surface. The former are used for applications in which the anatomy of interest is located at a shallow depth, and they offer approximately uniform spatial resolution as a function of depth, although at the expense of a limited field of view. In contrast, curvilinear transducer arrays produce a wider, fan-shaped field of view.
L. Faria, M. David, F. Verhaegen, R. Corns, and T. Falco, Ultrasound-based image guided radiotherapy for prostate cancer—comparison of cross-modality and intramodality methods for daily localization during external beam radiotherapy, Int J Radiat Oncol Biol Phys 37, 1562–7 (2006). 33. C. F. Serago, S. J. Buskirk, T. C. Igel, A. A. Gale, N. E. Serago, N. , and J. D. Earle, Comparison of daily megavoltage electronic portal imaging or kilovoltage imaging with marker seeds to ultrasound imaging or skin marks for prostate localization and treatment positioning in patients with prostate cancer, Int J Radiat Oncol Biol Phys 65,1585– 92 (2006).
