Alveolar consolidation was defined as isoechoic
tissue-like structure (i.e.
Calcifications may occur and uncommonly, the mass may appear complex, isoechoic
, or hyperechoic.
Normal tubes cannot be visualized in grey scale ultrasonography, as they are isoechoic
.  Saline and fluid contrast can be introduced through the uterine end and fluid movement can be traced by Doppler shift using colour Doppler mode.
Regarding the gray-scale findings of DCIS lesions included in our study, 16 lesions presented as a heterogeneous area, mostly isoechoic
to breast parenchyma, 12 of them with hyperechoic dots representing internal microcalcifications, and 3 with duct dilatation.
Imaging appearances of fat-saturated focal hypersteatosis on different imaging modalities and FSP measurements Modality Patient number FSP(%) US Isoechoic
5 37.6 Hyperechoic 23 31.8 hypodense 28 32.6 T1 in-phase Isointense 11 26 Hyperintense 17 36.8 T2-HASTE Isointense 10 27.1 Hyperintense T2-FS Isointense 16 32.6 Hypointense 1 43 FSP, fat signal percentage; US, ultrasonography; CT, computed tomography; T2, T2-weighted; HASTE, half-Fourier acquisition single-shot turbo spin-echo; FS, fat-saturated.
It is difficult to identify the infarcted region with conventional ultrasound in acute phase because the region of infarction is isoechoic
. With CEUS, the boundaries of infarcted lesion could be clearly outlined as microbubbles could not be taken up in non-perfused region. CEUS is considered as accurate as CT for the detection of vascular defects of the infarcted organs, and this technique is easily applicable to critically ill patients at the bedside.
thrombus was noted at IVC near its confluence with the right atrium.
homogeneous collection was found with a regular margin between the deep fat and overlying fascia without flow on color Doppler imaging consistent with chronic MLL (Figure 1).
Ultrasonography (US) revealed circular anechoic structures (4 to 8mm diameter), surrounded by 6 mm of isoechoic
and externally located thinner hyperechoic tissue.
It is a homogeneous organ, isoechoic
to the mesenteric fat and the caudal lobe, and slightly hyperechoic to the liver (Figure 1).
The following EUS features were analyzed: (a) location, (b) gross shape using the Yamada classification , (c) presence of mucosal erosion on endoscopy, (d) maximal diameter, (e) pattern of tumor growth (intraluminal, mural, or extraluminal), (f) endosonographic layer of origin, (g) echogenicity (hypoechoic, isoechoic
, or hyperechoic), (h) homogeneity (homogenous or heterogeneous), (i) distinctness of the borders (distinct or indistinct), and (j) presence of hyperechoic tubular structures indicating the presence of denaturalized Anisakidae larvae.
Hypoechoic and hyperechoic lesions but also isoechoic
masses can be clearly highlighted after injecting the contrast agent .