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Iskalni niz: "avtor" (Tomaž Kunst) .

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1.
Computed tomographic angiography of body vasculature
Tomaž Kunst, Pavel Berden, 2000, pregledni znanstveni članek

Povzetek: Background. The introduction of helical CT scanners in combination with simultaneous opacification of vessels with contrast medium allows the demonstration of vessels within the chosen volume of interest. This examination is called CT angiography. Being a minimally invasive method, it has been quickly accepted in the spectrum of vessel-imaging modalities, as forexample: Doppler ultrasound, magnetic resonance angiography, transesophageal ultrasound etc. In the field of cardiovascular radiology, it has been used to demonstrate pathology of ascending and descending aorta, likethe aneurysms, dissection, traumatic rupture or congenital anomalies. It is also very useful in pre- and postoperative follow-up in the aortic stent-graft insertion, a method which has recently become popular. Also the CTangiography has greatly influenced the preoperative calculations and has clearly demonstrated the postoperative anatomical changes as well as complications (i.e. peristental leakage). Conclusions. In this context, it is comparable to intraarterial angiography and even offers some advantages over the latter. The only draw-back being somewhat lower spatial resolution and longer processing time, but with the advent of a new, so called multi-slice scanners and powerful workstations, these draw-backs will be minimized.
Objavljeno v DiRROS: 24.01.2024; Ogledov: 190; Prenosov: 38
.pdf Celotno besedilo (975,29 KB)

2.
Diagnostic imaging, indications and measurements for the treatment of aortic aneurysm by endoprosthesis
Miloš Šurlan, Vladka Salapura, Tomaž Kunst, 2000, pregledni znanstveni članek

Povzetek: Background. This paper presents imaging diagnostics of an aneurysm of the aorta, indications, common contraindications and measurements for the construction and selection of an endoprosthesis. The examination using ultrasound is the most handy and economically justifiable method for detectingan aneurysm of the aorta, for monitoring asymptomatic aneurysm as well as patients having undergone an operation or those with an endoprosthesis. Another examination to visualise the aortic aneurysm is CT with or without contrastive medium. The plan for treating an aneurysm can be made with the help of a DSA, helical CT angiography and/or MRA. DSA shows wellthe lightness of the aneurysm and the aorta, as well as the changes insideof it, large arteries close to the aneurysm and the condition of pelvic arteries for the selection of the approach. The helical CT angiography and MRAin two or three dimensional reproduction in several directions enable an accurate measurement of an aneurysm, the aorta diameter above and below the aneurysm, and the evaluation of the quality of its wall. Conclusions. The indication areas for endoprosthesis are aneurysm of the abdominal aorta and those of the descending part of thoracic aorta. The treatment with endoprosthesis as a less invasive method is indicated in patients who risk a number of complications and even mortality when treated surgically. Endoprosthesis is made of metal stent and prosthesis. The stent attaches the endoprosthesis to the unaffected part of the aorta above and below the aneurysm, it sets the stent asunder and provides support. The prosthesis is made of Dacron synthetic fabric, which has very good properties for this purpose such as small compliance, porosity, permeability and extensibility. The endoprosthesis is introduced into the aorta through a catheter system withthe help of a special guide wire. The entering point is surgically opened common femoral or iliac artery.
Objavljeno v DiRROS: 24.01.2024; Ogledov: 181; Prenosov: 39
.pdf Celotno besedilo (323,00 KB)
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