The fault of the electronic computer scans and checks _'s general knowledge of hepatocarcinoma

The fault of the electronic computer scans and checks _'s general knowledge of hepatocarcinoma
In various images are checked, CT can reflect most the pathologic shape of liver behaves, such as the focus size, shape, position, number and there are focus internal haemorrhage and necrosising,etc.. Can understand its soaking from the edge situation of the focus, and infringe the situation from the vascular cancer bolt of pulse of door and can understand its infringing, CT is considered to supplement the supersound apparently like estimating the first-selection of the pathological change range is not a invading diagnostic method. CT of hepatocarcinoma behaves, it is flat to sweep behaving: Focus low density generally, less than around the intersection of liver and the intersection of essence and density, have one low the intersection of ring and shadow (faint, enclose, solicit) of density around the some focus . The tubercle type edge is relatively clear, huge one type and the hybrid edge is fuzzy with clear partly much. Strengthen and behave: Organize the density not to get the improvement of the intensity in focus and liver after iodine radiography pharmaceutical of intravenous injection, enhancement that is called. Including: Strengthen the scanning dynamically; Adopt the note law of the group scans dynamically or spiral CT scans fast, it is early (liver artery one) Focus present high density strengthen, higher than normal liver organize 10- 30 seconds such as time around, the focus density drops rapidly subsequently, close to the normal liver to organize in order to wait for the density, this is apt to omit; The focus density continues dropping the liver and organizing presenting the low density cooking stove, this can last several minutes, scan, strengthen, pursue apt to find the intersection of lump and diameter smaller than 1cm or satellite cooking stove of 1- 2cm in early days dynamically, also have ?.. in the little and focal discovery. Non-dynamic to scan: Scan ordinarily each time for at least more than 15 seconds, so the focus may land on above-mentioned any scanned to live in the aspect of liver dynamically and present different density, most focus drop on low the intersection of density and issue extremely, than lower obviously while sweeping while being flat focus. The manifestation that pulse system of the door and other systems are infringed: Primary the intersection of hepatocarcinoma and door venous system cancer bolt person who take shape high, strengthen than long to reveal cancer of intensification bolt and obvious blood of intensification widely different, it is full of defect and cause the pulse backbone of the door or branched blood vessel abnormality or not develop looking like to display the strip. A few patients have lower vena cava cancer bolts to take shape. It can cause the bile duct in the liver to expand that the liver door is infringed, the enlargement of lymph nodes behind the accidental peritoneum, ascites,etc.. The lung is shifted and appeared when the chest CT is checked unusually, more sensitive than the X-ray chest.
>The new CT machine brings in constant renewal in in recent years, CT checks the updating of technology, until CT combine technology and intubate inject radiography pharmaceutical act as CT enhanced CTA (CT-Angiography) directly in the the intersection of liver and artery angiography , the artery or spleen artery injects radiography pharmaceutical and scans (CTAP) in CT fault of walking of portal vein on the mesenterium ,And liver pour into iodination behind the oil at intervals of 2- 3 week competent the intersection of CT and flat Lipiodol-ct that sweep in the artery at the angiography, (Lp-CT) Method it wait for,to small for hepatocarcinoma especially 1cm with detection of hepatocarcinomas small last CT to scan dynamically. Sweep, add, strengthen, classify routine as while being flat with CT still in the above-mentioned many kinds of method, suspicious focus or small hepatocarcinoma choose CTA and CTAP as most effective method to make a definite diagnosis of.
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