Hungarian Radiology

[“Magic photos” in Szeged]


OCTOBER 20, 2007

Hungarian Radiology - 2007;81(05-06)



Further articles in this publication

Hungarian Radiology

[MRI-guided prostate brachytherapy: First Hungarian experiences based on a canine study]


[INTRODUCTION - Modern radical radiotherapy can be an effective alternative of radical prostatectomy in low risk patients with prostate tumor. Our objective was to demonstrate the feasibility of transperineal MR-guided prostate interventions in an open MR unit and to present our early clinical experiences on canines. METHODS AND MATERIALS - The procedures were performed on 5 canines in an open-configuration 0.35T MR scanner. For interventions an MR compatible custom-made device was used. The canines were placed in the right lateral decubitus position. Template reconstruction, trajectory planning, target and OAR delineation were based on T2 FSE images. For image guidance and target confirmation, fast spoiled gradient-echo (FSPGR) sequence was used. MR compatible coaxial needles were inserted through the perineum to the base of the prostate. After satisfactory position was confirmed, brachytherapy catheters were placed through the coaxial needles, which were then removed. RESULTS - Mean and standard deviation of the needle displacements was 2.2 mm±1.2 mm, with a median of 2 mm. 96% of the errors were less than 4.0 mm. Implantation induced prostate motion was measured with a mean of 10.3 and 2.3 mm in cranio-caudal and transverse directions. Significant movement was only observed during the first 4 needle insertions. The average time needed for each step was: anesthesia 15 minutes, setup and positioning 15 minutes, initial imaging 15 minutes, template registration and projection 15 minutes, contouring, trajectory planning, insertion of 10 needles 60 minutes. CONCLUSION - Based on our canine model experiences our method seems to be a promising approach for performing feasible, accurate, reliable and high-quality prostate MR guidance within a reasonable time span. We plan to introduce MR-guided biopsy and brachytherapy in human patients in the near future.]

Hungarian Radiology

[Computed tomography brain perfusion in the management of acute stroke]

BAGI Róbert, SZABÓ Tünde, MONOKI Erzsébet

[INTRODUCTION - The multidetector CT-technology made the application of perfusion CT-examination in the diagnosis of vascular brain damages possible in recently. The purpose of this study was to introduce the method and to assess the importance of computed tomography brain perfusion in emergency patient care and early diagnosis of brain ischemia. PATIENTS AND METHODS - We perform brain perfusion examinations with a 2 slice multidetector computer tomography (General Electric Highspeed NX/i, 2004) in our hospital. We examined the results of native and perfusion CT of 27 patients who underwent CT brain perfusion examination during emergency patient care in our department between 2004 January and 2006 December. We also examined if the patients got systemic thrombolysation and the patients’ condition after therapy. RESULTS - The perfusion software can make quantitative colour maps of parameters (CBF, CBV, MTT) and can visualize mean value and percentil decrease of measuring parameters. There were 18 positive and 8 negative CTbrain perfusion examinations in the examined period. One examination was technically unvaluable. CONCLUSION - By measuring blood flow's decrease the CT-brain perfusion examination can separate the reversible and irreversible damage of brain parenchyma. The examination protocol of brain vascular damages are native CT-scan, postcontrast perfusion CT-examination and CTangiography by the recommendation of international literature. Despite the multidetector CT-s and CT-perfusion technic is available for years, the CT-brain perfusion examination is not a routine process in the emergency patient care in our country.]

Hungarian Radiology

[XV. Symposium and Postgradual Training of the Pediatric Radiologists]


Hungarian Radiology

[XII. Congress of the Hungarian Radiographers]


Hungarian Radiology

[Technical aspects of MR urography based on two cases]

HORVÁTH László, BOGNER Péter, NAGY Gyöngyi, BAJZIK Gábor, VANDULEK Csaba, REPA Imre

[Intravenous urography has been the gold standard in diagnostic radiology studying the urogeintal system. However, ultrasound and other cross-sectional imaging methods have brought major change in this area. Beside modern (multislice) CT examinations the methods of MR urography are more frequently applied making possible both static and dynamic examinations beyond the wellknown advantages of MR imaging. The authors describe two complemetary methods of MR urography which provide a complete evaluation of the urinary system. The first method is aimed to image stationary fluid by using heavily T2 weighted turbo spin echo pulse sequences. This measurement well depicts the dilations of the excretory system even with little or no excretion of urine. The second method is analogous with the traditional IVU, as the excretion of a less nephrotoxic gadolinium based contrast medium followed by a T1 weighted gradient echo pulse sequence (possibly dynamic) helps to visualise the renal cavities and the urinary pathways. Normal renal function is a prerequisite when using this technique in order to visualise normal and obstructed urinary pathway disorders. The use of MR urography together with traditional MR methods may significantly reduce the number of invasive examinations and methods based on X-ray radiation exposure. MR urography may be exceptionally important in the uroradiological study of distensions of renal cavities in pediatric cases, pregnant women and renal transplant patients or in case of contrast material allergy.]

All articles in the issue

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[Kidney transplantation in Hungary, 2010]


[Hungarian kidney transplantation has been established with three milestone operations. In 1902 Emerich Ullmann showed the technical feasibility of renal transplantation on dogs, and later the living donor transplant of András Németh in 1962 and the program starting operation of Ferenc Perner in 1973 already meant the real possibility for Hungarian patients. More than 5000 kidney transplantations were done since, and the operations are now made at the four university medical schools centers. In 2009 248 renal transplantations were done in our country (Budapest: 148, Szeged: 51, Pécs: 39, Debrecen: 34), from which 24 were living donor and nine combined kidney-pancreas cases. Despite the worsening financing situation in the health care system the numbers of transplantations are stable within a 15 year period, but this means a marked decrease in international comparison. In our country, the ratio of living donation is low, there is no paired donation, incompatible transplantation, the problems of hypersensitive patients are unresolved, and there is no old-for-old program. The solution to all of these problems could be joining to Eurotransplant, which is the definite wish of the transplant society based on the positive Slovenian and Croatian examples.]

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