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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>lin22307</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/xeon/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Wto 16:40, 22 Mar 2011<span class="gen"> </span> Temat postu: Belstaff Espa&#241;a Early treatment of avascular necro</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Early treatment of avascular necrosis involved analysis of 30 cases <br /> <br /> <br />Check the contrast agent can improve image quality. Key words: Angiography, digital subtraction; intervention; radiology, interventional CLC number: R445.9 Document code: B Article ID :1001-5817 (2009) 04-0683-02doi: 10.3969 /]. issn. 1001-5817.2009.04.092 With the development of interventional medicine and clinical intervention to promote and new materials, new technologies,<a href="http://www.belstaffespana.net/belstaff-bolsas" target="_blank" class="postlink">belstaff bolsas</a>, the continuous application of new equipment,<a href="http://www.mbtchaussure.org" target="_blank" class="postlink">mbt chaussure</a>, our hospital since 2005,<a href="http://www.nikehighheels.org/air-jordan-high-heels" target="_blank" class="postlink">air jordan high heels</a>, full use of the catheter technology to digital subtraction angiography ( Ⅸ) examination and treatment, the author of 356 cases of the DSA, superselective catheterization cases, under different parts of the DSA to select a different technology,<a href="http://www.nikehighheels.org" target="_blank" class="postlink">nike high heels</a>, video images collected from a comparative analysis of ... 1 views some technical operations. 1 Materials and methods 1.1 General information on applications in our hospital 5 years Cases catheter technique DSA,<a href="http://www.belstaffespana.net" target="_blank" class="postlink">Belstaff España</a>, a total of 356 cases. Abdomen 245 cases, 58 cases of head and face, chest in 25 cases, pelvic in 28 cases. Beijing Wandong produced by the 800mA-CG digital subtraction X-ray machine, the Japanese production Nemoto a high pressure syringe 120S. Catheter was used: ① 5 - 6F catheter; ② for superselective catheterization imaging and therapy <3F micro-catheter, such as the Tracker microcatheter, Microferret micro-catheter, etc.; ③ from the guiding role of the micro-guide wire. Most contrast agents using non-ionic contrast agent (iohexol injection and Ultravist), using 76% of the small number of diatrizoate. 1.2 Methods commonly used Seldinger technique, puncture the side of the femoral artery, into arterial sheath, according to different parts of the choice of different catheter. Liver Cancer patients often use 5 ~ 6FYashiro or RH catheter in advance of celiac arteriography and hepatic artery catheter to be selective hepatic artery angiography, with its coaxial superselective microcatheter inserted into the liver or liver segment subsegmental arteries, the use of hand push or pressure syringe injection of contrast agent acquisition images show lesions. Cobra bronchial arterial DSA using arterial catheter or RLG, selective insertion of bilateral bronchial arteries and the Ⅸ image acquisition, and the clear nature of the lesion, the system using a coaxial microcatheter superselective bronchial artery catheterization to re-capture branch of image. Head with 5 ~ 6FJR4 vascular Ⅸ or H1, H2 catheter, respectively carotid, internal carotid, external carotid and vertebral artery angiography, lesions found after the system using a coaxial microcatheter superselective catheterization to the target vessel re-capture branch of DSA images. Pelvic tumor thrombosis and hemostasis of bleeding and other parts of the similar methods. Check the 356 cases the results of cases 2, 1420 Exposure acquisition sequence, 2136 images, through the Division experienced diagnostician, the collective assessment of technicians. For the excellent image quality: image is clear, good contrast, rich layers, no artifacts, subtraction thorough, small vascular branches can be clearly displayed (see Figure 1), can display 0.2mm small blood vessels, showed a small lesion and good abnormal blood vessels, fully meet the diagnostic requirements, a total of 1164 sequences, accounting for 81.97%; good for image quality: image is still clear, fewer artifacts, but also more clearly show the small vascular branch (see Figure 2), indicating lesions were also comparable with the excellent images, a total of 221 sequences, accounting for 15.56%; for the poor image quality: images are moving, saturation artifacts, noise, or regions of interest showed incomplete or subtraction is not complete, imaging delay time or not (see Figure 3), indicating poor small vessels, and lesions of 5mm below the display clear, easily missed or misdiagnosed, but by / 3SA post-processing techniques, to meet the diagnostic requirements, a total of 22 sequences, accounting for 1.55%; image acquisition failure in 13 sequences, accounting for 0.92%. 3 discussed in the interventional treatment for the application of Ⅸ technology, image requires a clear, blood vessels levels clearly, 3 - 5 should be able to identify blood vessels within the background without any artifacts, in addition to the target vessel, the other structures are in the process of subtraction was completely eliminated (Figure 1). DSA image quality of the merits of early diagnosis and early treatment plays an important role, high-quality images obtained by many factors, mainly related with the operation of medical technicians, must have a solid theoretical foundation, skilled professional skills, highly responsible sense of responsibility, the noble medical ethics and mutual understanding with the team; followed by machinery and equipment, the equipment to ensure good operation, maintenance and repair of serious, strict operational procedures. Also in the timely analysis of intraoperative and postoperative evaluation of the image, to sum up, increased. 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