Echo-enhanced ultrasound with pulse inversion imaging: A new imaging modality for the differentiation of cystic pancreatic tumours

Abstract

Cystic pancreatic masses have a different vascularization pattern at echo-enhanced sonography. These characteristics are useful for their differential diagnosis, but histology is still the gold standard.

Contrast-enhanced harmonic endoscopic ultrasound is able to discriminate benign submucosal lesions from gastrointestinal stromal tumors

“…With larger vessels in vicinity blooming artifacts may compromise image quality [22][23][24]. As harmonic imaging technique, CEH-EUS offers better image resolution than power Doppler imaging of suspicious lesions.…”

Contrast-enhanced harmonic EUS with novel ultrasonographic contrast (Sonazoid) in the preoperative T-staging for pancreaticobiliary malignancies

“…These contrast agents can produce harmonic signals at low acoustic power [20][21][22][23], and are possibly available even for CH-EUS which has limited bandwidths and low acoustic power. Kitano et al showed that CH-EUS with Sono Vue was useful for imaging digestive diseases including pancreaticobiliary malignancies, although the study population was small [18].…”

“…Recently, second generation contrast agents for ultrasonography have been developed and contrast-enhanced harmonic imaging with EUS (CH-EUS) is now possible [18,19]. These agents can produce harmonic signals at low acoustic power [20][21][22][23], and therefore, be available even for EUS imaging [18,19]. Sonazoid, a second generation contrast agent, has been reported to be useful in the diagnosis of hepatocellular carcinoma by highlighting tumor microvasculature [24,25].…”

Endosonographie zystischer Pankreasläsionen

“…In einer Kontrastmittelstudie [61] konnte in Übereinstim-mung mit den bisherigen Literaturangaben gezeigt werden, dass eine Iso-oder Hypervaskularisation in der Zystenwand oder in den festen Anteilen der Zysten im Vergleich zum umgebenden Gewebe ein Zeichen für einen zystischen Tumor darstellt, wobei dies jedoch keinen Rückschluss auf die Benignität bzw. Malignität der Läsion erlaubt.…”