A 970 Hounsfield units
(HU) threshold of kidney stone density on non-contrast computed tomography (NCCT) improves patients' selection for extracorporeal shockwave lithotripsy (ESWL): Evidence from a prospective study.
Numbers of pixels (PC) and values of Hounsfield units
(HU) for 0, 2, 4, 6, and 8 h after transpiration and for the dry soil Time PC HU 0 39 699 -190 2 38 992 -196 4 43 767 -203 6 46 847 -210 8 40 638 -215 Dry soil 52 708 -221
Keywords: Hounsfield units
, non-contrast computed tomography, stone composition, kidney stone, stone homogeneity/heterogeneity
Original Hounsfield units
of [+ or -] 512 were changed to new units ranging from +1024 HU for white to -1024 HU for black.
29) Unenhanced CT indicates hepatic steatosis when liver attenuation is at [less than or equal to] 10 Hounsfield units
(HU) below that of the spleen (Figure 2).
4] Generally, AMLs are detected by CT scan, which reveals a mass with high fat content as measured by negative Hounsfield units
and vascular components.
Any mass studied with CT thin slice scanning, that increases between 10 to 20 Hounsfield units
A region of interest is placed within the lumen of the thoracic aorta, and the scan is triggered after a designated threshold in Hounsfield units
(HU) is reached during dynamic imaging.
The shaded-rendering technique calculates 3-dimensional gradients in the Hounsfield units
of each voxel in the data being rendered.
This is achieved by algorithmically converting the Hounsfield units
(HU) in CT to attenuation coefficients appropriate for energies of 511 keV.
To optimize the CT angiography protocol, we conducted a systematic study divided into two parts with the aim to determine the kV-specific minimal IDR and contrast media volume necessary to obtain diagnostic aortic intravascular attenuation (350 Hounsfield Units
Any renal mass that enhances with intravenous administration of contrast material on CT scanning by more than 15 hounsfield units
(HU) should be considered a renal cell carcinoma (RCC) until proved otherwise1,2.