JSUM ultrasound elastography practice guidelines: pancreas
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Ultrasound elastography is a relatively new diagnostic technique for measuring the elasticity (hardness) of tissue. Eleven years have passed since the debut of elastography. Various elastography devices are currently being marketed by manufacturers under different names. Pancreatic elastography can be used not only with transabdominal ultrasonography but also with endoscopic ultrasonography, but some types of elastography are difficult to perform for the pancreas. These guidelines aim to classify the various types of elastography into two major categories depending on the differences in the physical quantity (strain, shear wave), and to present the evidence for pancreatic elastography and how to use pancreatic elastography in the present day. But the number of reports on ultrasound elastography for the pancreas is still small, and there are no reports on some elastography devices for the pancreas. Therefore, these guidelines do not recommend methods of imaging and analysis by elastography device.
KeywordsPancreas Strain Shear wave Elasticity imaging Elastography
We express our deep gratitude to those who kindly cooperated with us in the making of this paper and provided us with advice as well as images, including: Dr. Takashi Kumada and Dr. Katsuhiko Otobe (Ogaki Municipal Hospital); Dr. Yoshihiko Tachi, Dr. Tadashi Iida, and Dr. Katsumi Nakano (Komaki Municipal Hospital); Ms. Akiko Tonomura and Ms. Chisato Torisawa (Hitachi Aloka); Mr. Masahiro Saito (Siemens); Mr. Shunichiro Tanigawa (GE); Mr. Masahiko Yano (Toshiba); Ms. Yukako Tsubone and Mr. Hiroyuki Maeda (Olympus); and Mr. Masahiro Kozaki (Philips).
Conflict of interest
Human rights statements and informed consent: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008 (5). Informed consent was obtained from all patients for being included in the study.
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