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Renal ultrasonography (Renal US) is the examination of one or both kidneys using medical ultrasound. Ultrasonography of the kidneys is essential in the diagnosis and management of kidney-related diseases. The kidneys are easily examined, and most pathological changes in the kidneys are distinguishable with ultrasound.
The three types of axonometric projection are isometric projection, dimetric projection, and trimetric projection, depending on the exact angle by which the view deviates from the orthogonal. [2] [3] Typically in axonometric drawing, as in other types of pictorials, one axis of space is shown to be vertical.
The next diagram shows the images of the unit cube for various angles and foreshortenings and gives some hints for how to make these personal choices. Various axonometric images of a unit cube. (The image plane is parallel to the y-z-plane.) The left and the far right images look more like prolonged cuboids instead of a cube.
The kidney function can also be assessed with medical imaging. Some forms of imaging, such as kidney ultrasound or CT scans, may assess kidney function by indicating chronic disease that can impact function, by showing a small or shrivelled kidney. [citation needed].
Axonometric projection is further subdivided into three categories: isometric projection, dimetric projection, and trimetric projection, depending on the exact angle at which the view deviates from the orthogonal. [3] [4] A typical characteristic of orthographic pictorials is that one axis of space is usually displayed as vertical.
Renal hypoplasia is a congenital abnormality in which one or both of the kidneys are smaller than normal, [5] resulting in a reduced nephron number [1] but with normal morphology.
A cystic nephroma, also known as multilocular cystic nephroma, mixed epithelial stromal tumour (MEST) and renal epithelial stromal tumour (REST), [1] is a type of rare benign kidney tumour. Symptoms [ edit ]
A series of images are taken at regular intervals. Processing then involves drawing a region of interest (ROI) around both kidneys, and a computer program produces a graph of radioactivity inside the kidney with time, representing the quantity of tracer, from the number of counts measured inside in each image (representing a different time point).