Title Vrijednost "low dose" MSCT protokola u dijagnostici urolitijaze - sustavni pregled Title (english) THE VALUE OF "LOW DOSE" MDCT PROTOCOLS IN THE DIAGNOSIS OF UROLYTHIASIS - A SISTEMATIC REVIEW Author Stipan Mandarić Mentor Krešimir Dolić (mentor)Committee member Ivana Štula (predsjednik povjerenstva)Committee member Tade Tadić (član povjerenstva)Committee member Krešimir Dolić (član povjerenstva)Granter University of Split Defense date and country 2016-09-20, Croatia Scientific / art field, BIOMEDICINE AND HEALTHCARE Abstract Urolitijaza je stručni medicinski izraz, a odnosi se na kamence koji se pojavljuju u urinarnom traktu. Problem je zastupljen u svim kulturama, obuhvaća sve rase i pojavljuje se na svim zemljopisnim područjima. Češće se pojavljuje kod muškaraca u mlađoj životnoj dobi i postoji sklonost recidivu.
S obzirom na učestalost bolesti javlja se potreba za brzom i efikasnom dijagnostikom. Tako se u našim ustanovama uglavnom primjenjuje nativno snimanje urotrakta te ultrazvučna dijagnostika. Također je i intravenska urografija dugo godina bila referentna metoda u dijagnostici bubrežnih kamenaca. Pokazalo se da se ovom metodom ne može detektirati uzrok opstrukcije poglavito u donjem dijelu urotrakta. Također se i ultrazvučna dijagnostika pokazala nedostatnom za analizu uretera i mjehura. Otkriva tek oko polovicu kamenaca u ureterima. Metoda je subjektivna i ovisna o mnogim čimbenicima koji je limitiraju.
U posljednjih desetak godina, razvoj CT-a, poglavito MDCT-a, promijenio je dijagnostičku procjenu analize mokraćnog sustava. Omogućen je bolji prikaz kanalnog sustava bubrega jer se koriste tanki presjeci, skeniranje se vrši izuzetno brzo, prostorna rezolucija je zadovoljavajuća, a omogućena je i dobra naknadna obrada slike koja omogućava 2D i 3D prikaz. Međutim, eksponencijalni porast korištenja CT-a zadnjih godina rezultirao je i povećanjem doza zračenja za pacijente. Smatra se da polovica svih medicinskih dijagnostičkih zračenja otpada na CT snimanja. Stoga su mnogi znanstvenici pokušali pronaći optimalna rješenja kako bi smanjili dozu zračenja, a da pritom značajno ne umanjuje dijagnostičku vrijednost pretrage. Tako se danas koriste brojne mogućnosti unutar samog protokola snimanja, ali i značajne tehnološke mogućnosti za primjenu „low dose“ protokola.
U ovom radu su prikazani rezultati autora koji su u svojim radovima analizirali mogućnost i vrijednost primjene “low dose“ protokola u dijagnostici urolitijaze korištenjem MDCT metode snimanja .
KLJUČNE RIJEČI: urolitijaza, MSCT, smanjenje doze zračenja, protokoli snimanja
Abstract (english) Urolithiasis is a professional medical term used to describe stones occurring in the urinary tract. The problem is represented around the world, in all cultures, races and geographic location. It is more common in men at a younger age and there is a tendency to relapse.
Given the prevalence of the disease there is a need for rapid and efficient diagnosis. Thus, in our institutions, mainly are used X ray of urinary tract and ultrasound. Intravenous urography, for many years, has been the reference method in the diagnosis of kidney stones. It has been shown that this method cannot detect the cause of the obstruction particularly in the lower part of the urinary tract. Also, the ultrasound showed deficiencies to analyze the ureter and bladder because it reveals only about half of the stones in the ureters. The method is subjective and dependent on many factors that limit it.
In the past decade, the development of CT, particularly MDCT's, changed the diagnostic assessment analysis of the urinary tract. It is enabling better presentation channel system because they use a thin sections, scanning is done extremely quickly and spatial resolution is satisfactory. Also, it can enable good post-image processing that allows 2D and 3D view. However, the exponential increase in the use of CT in recent years has resulted in the increase of radiation dose to patients. It is believed that half of all medical diagnostic radiation is wasted on CT scans. Therefore, many scientists tried to find optimal solutions to reduce the radiation dose without significantly reducing the diagnostic value of exam using different protocols and softwer solutions.
This paper presents the results of authors who in their works analyzed the possibility and value of implementing a "low dose" protocol in the diagnosis of urolithiasis using MDCT imaging method.
KEY WORDS : urolithiasis , MDCT, dose reduction, protocols shooting
Keywords
urolitijaza
MSCT
smanjenje doze zračenja
protokoli snimanja
Keywords (english)
urolithiasis
MDCT
dose reduction
protocols shooting
Language croatian URN:NBN urn:nbn:hr:176:892610 Study programme Title: Radiologic Technology (university/graduate) Type of resource Text File origin Born digital Access conditions Open access Terms of use Created on 2020-06-04 07:21:46
