scholarly journals Effectiveness of tissue harmonic echo imaging and contrast-enhanced endoscopic ultrasound for diagnosing mural nodules of intraductal papillary mucinous neoplasms

2015 ◽  
Vol 27 ◽  
pp. 74-74
Author(s):  
Hironari Kato ◽  
Naoki Yamamoto ◽  
Kazuhide Yamamoto
Keyword(s):  
Endoscopic Ultrasound ◽  
Intraductal Papillary Mucinous Neoplasms ◽  
Contrast Enhanced ◽  
Mucinous Neoplasms ◽  
Mural Nodules

scholarly journals A Novel Endoscopic Ultrasonography Imaging Technique for Depicting Microcirculation in Pancreatobiliary Lesions without the Need for Contrast-Enhancement: A Prospective Exploratory Study

Diagnostics ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2018
Author(s):  
Yasunobu Yamashita ◽  
Takanori Yoshikawa ◽  
Hirofumi Yamazaki ◽  
Yuki Kawaji ◽  
Takashi Tamura ◽  
...  
Keyword(s):  
Lymph Nodes ◽  
Endoscopic Ultrasonography ◽  
Ultrasound Contrast Agents ◽  
Low Velocity ◽  
Intraductal Papillary Mucinous Neoplasms ◽  
Vascular Assessment ◽  
Contrast Enhanced ◽  
Mucinous Neoplasms ◽  
Solid Lesions ◽  
Mural Nodules

Detective flow imaging endoscopic ultrasonography (DFI-EUS) provides a new method to image and detect fine vessels and low-velocity blood flow without using ultrasound contrast agents. The aim of this study was to evaluate the utility of DFI-EUS for pancreatobiliary lesions and lymph nodes. Between January 2019 and January 2020, 53 patients who underwent DFI-EUS, e-FLOW EUS, and contrast-enhanced EUS were enrolled. The ability of DFI-EUS and e-FLOW EUS to detect vessels was compared with that of contrast-enhanced EUS. This article describes the DFI technique along with our first experience of its use for vascular assessment of pancreatobiliary lesions. Vessels were imaged in 34 pancreatic solid lesions, eight intraductal papillary mucinous neoplasms (IPMNs), seven gall bladder lesions, and four swollen lymph nodes. DFI-EUS (91%) was significantly superior to e-FLOW EUS (53%) with respect to detection of vessels (p < 0.001) and for discrimination of mural nodules from mucous clots in IPMN and gallbladder lesions from sludge (p = 0.046). Thus, DFI-EUS has the potential to become an essential tool for diagnosis and vascular assessment of various diseases.

Usefulness of Contrast-Enhanced Endoscopic Sonography for Discriminating Mural Nodules From Mucous Clots in Intraductal Papillary Mucinous Neoplasms

2013 ◽  
Vol 32 (1) ◽  
pp. 61-68 ◽  
Author(s):  
Yasunobu Yamashita ◽  
Kazuki Ueda ◽  
Masahiro Itonaga ◽  
Takeichi Yoshida ◽  
Hiroki Maeda ◽  
...  
Keyword(s):  
Intraductal Papillary Mucinous Neoplasms ◽  
Contrast Enhanced ◽  
Mucinous Neoplasms ◽  
Mural Nodules
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