Does hepatocarcinoma check and select CT or MRI_ general knowledge for use

Does hepatocarcinoma check and select CT or MRI_ general knowledge for use
Study the progress of technology with the medical image, its diagnosis to hepatocarcinoma is applied, already far exceeded serology to diagnose, detection, determining the nature, making a reservation and playing a very important role by stages at hepatocarcinoma, the patient should select the corresponding image for use and study the inspection method according to condition and actual conditions. The supersound is checked, does not have any harmful effects to the tissue for the not invading, it checks easy to operate, ocularly and accurately, the expenses are cheap, often used in the discovery in early days of hepatocarcinoma and diagnose. The ultrasonic inspection result is easy to limit by examiner's experience and careful intensity, the experienced supersound doctor uses the advanced supersound to diagnose the appearance can find the focus under 1cm, show as, wait for echo, lie liver diaphragm top and little tumour under the rib easy to leak, examine. The supersound is diagnosed the differential diagnosis used for hepatocarcinoma, liver cyst and liver hemangioma relatively has reference value, and the supersound ascertains on the surface of liver behind holding the belly directly in the skill, preventing the supersound from decaying and interference of the belly wall, rib, focus in the liver that can find CT before the skill, supersound had not all found. Absolute alcohol inject skill and the intersection of radio frequency and skill of melting, in the the intersection of microwave and the intersection of solidification and skill in tumour of hepatocarcinoma, adopt the supersound to lead easy to operately, be short of time consumingly, the expenses are low, the more important thing is that can monitor the whole treatment real-timely, guarantee to wear the security of La and treatment greatly, the most frequently used image at present study and lie between and lead the method.
The appearance of CT makes the hepatocarcinoma image learn to diagnose that there is a qualitative leap, and drive the progress of liver surgery. The explanation rate of CT is well-above the supersound, the picture is clearer and steadier, can reflect the characteristic of hepatocarcinoma objectively in an all-round way. CT can clearly reveal the size, number, shape, position, border, tumour blood of hepatocarcinoma support the abundant intensity while checking, and the relation with pipeline in the liver; Whether have cancer bolts to the portal vein, intravenous and lower vena cava of liver, whether liver door and coeliac lymph node are shifted, whether hepatocarcinoma has very important diagnosis value to infringe the neighbouring histoorgan; CT can also be through revealing the appearance of the liver, size of the spleen and having ascites to judge the weight of liver cirrhosis. Fast spiral CT can hold one's breath in once ' About 20s) Can finish the scanning of the whole liver, can avoid breathing the upper and lower movements of the aspect due to sport and leaking and sweeping the small focus, can also overcome the false shadow question that breath sports produce. It is can thick to carry on the intersection of thin layer and scanning with layer of 1mm to be spiral and CT minimum, little the intersection of hepatocarcinoma and detection rate in 1- 3cm can reach 90%, and can rebuild the high-quality 3-D view in the spiral length that scan. To strengthening CT hepatocarcinoma difficult to make clear diagnosis, can further adopt the angiography CT. Inject in the liver artery into radiography pharmaceutical through the leather conduit, observe CT when the liver artery is developed, call CT angiography.
MRI does not have radioactive radiation, can carry on the formation of image from a plurality of positions. New MRI has already overcome the shortcoming of the early formation of image with too slow speed, field intensity is improved to 1.5- 2.0T, make many kinds of new technology of formation of image such as gradient return waves echo array and spectrum analyze etc. that be realized, add the application of hepatocyte -specific radiography pharmaceutical, improve to the detection rate of the small hepatocarcinoma greatly, the detection rate of focus which is smaller than 1cm is 55%, 1- 2cm is 70%, 2- 3cm is up to 82%. MRI can be clear to reveal blood vessel and bile duct structure in the liver, to understanding the relation of bile duct of blood vessel in tumour and liver is helped greatly. MRI can also reveal the internal structure that liver and hepatocarcinoma organize well, it is very helpful to treat curative effect in assessing various, until alcohol inject skill, radio frequency melt skill or the intersection of microwave and postoperative solidification in leather tumour, tumour and necrosis are shown the even low signal at T2 stage, if the signal irregularity within tumour, often brief on after treating necrosis is incomplete. MRI easy to find, lie in the intersection of liver and surface to be CT difficult to measure light hepatocarcinoma that arrive, until little sensitiveness to shift cooking stove also quite high in the liver, but the one that is beaten by heart and aorta on the edge of the left leaf of liver influences but small hepatocarcinoma detection rate and CT are pretty much the same.
Face numerous developing images and study the method, the clinician should need to choose the appropriate image to study the inspection means from clinical diagnosis. Follow up a case by regular visits to after ultrasonic cheap and popularize expense, general survey used for hepatocarcinoma and treat; CT vision is clear and steady, following up a case by regular visits to the inspection after it is regular to be used hepatocarcinoma to diagnose that checks and treats; With comparing with monobasic CT, vision of MRI definition unsatisfactory, until little focal detection, vascular situation and display of structure have distinctive qualities in the tumour in the liver MRI, can be regarded as the supplement that CT checked.
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