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Computed tomographic (CT) gastrography, also called virtual gastroscopy (VG), is a noninvasive procedure for the detection of gastric abnormalities. Multiple X-rays are used to create a 3-Dimensional image of the organ, allowing abnormalities to be detected.
These pixel sizes have also resulted in creation of its synonyms high-resolution X-ray tomography, micro-computed tomography (micro-CT or μCT), and similar terms. Sometimes the terms high-resolution computed tomography (HRCT) and micro-CT are differentiated, [ 3 ] but in other cases the term high-resolution micro-CT is used. [ 4 ]
In conventional CT machines, an X-ray tube and detector are physically rotated behind a circular shroud (see the image above right). An alternative, short lived design, known as electron beam tomography (EBT), used electromagnetic deflection of an electron beam within a very large conical X-ray tube and a stationary array of detectors to achieve very high temporal resolution, for imaging of ...
The repeating crossbow (Chinese: 連弩; pinyin: Lián Nǔ), also known as the repeater crossbow, and the Zhuge crossbow (Chinese: 諸葛弩; pinyin: Zhūgě nǔ, also romanized Chu-ko-nu) due to its association with the Three Kingdoms-era strategist Zhuge Liang (181–234 AD), is a crossbow invented during the Warring States period in China that combined the bow spanning, bolt placing, and ...
Sensitized triplet-triplet annihilation (sTTA) based photon upconversion is a bimolecular process that through a number of energy transfer steps, efficiently combines two low frequency photons into one photon of higher frequency.
The main northwest part of the region is flat, a rarity in Kyrgyzstan. This is the Chüy Valley, the valley of the river Chu (Chüy). The valley's black soil is fertile and largely irrigated with water diverted from the Chu. The region's Agricultural production includes wheat, maize, sugar beets, potatoes, lucerne, and various vegetables and ...