Boris Bezak - Academia.edu (original) (raw)
Radiologist with main point of interest in interventional radiology, especially neurointerventional radiology
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Papers by Boris Bezak
Case Reports in Endocrinology
Acromegaly and gigantism are hormonal disorders which develop as a consequence of chronic growth ... more Acromegaly and gigantism are hormonal disorders which develop as a consequence of chronic growth hormone hypersecretion. The prefix pseudo- is used to describe a certain clinical condition without a clearly proven characteristic of pathophysiological mechanism and basic biochemical features; pseudoacromegaly or acromegaloidism match the definition from above. In this case reports, we will try to provide a concise overview of diagnostic evaluation of acromegaloid physical appearance, while discussing two cases of patients who have similar clinical acromegaloid features as the first sign of the disease but have completely different etiologic backgrounds of their acromegalic appearance. The first case is of a 57-year-old male who presented with a marked acral growth and coarse facial features, but the diagnosis of secondary amyloidosis caused by multiple myeloma was confirmed just after biopsy of tongue and buccal mucosa. The second case is that of a 63-year-old male with an acromegalo...
The aim of this study is to compare detector plates (radiographic image receptors) used in digita... more The aim of this study is to compare detector plates (radiographic image receptors) used in digital radiology. Detector plates are divided into computed radiography systems (phosphor plates) and digital radiography systems (CCD, CMOS, silicon photodiodes and flat panel detector). Phosphor plates use the principle of radiation-induced photostimulable luminescence, and can be read with the help of a laser reader (digitizer). Digital radiology systems are divided into indirect and direct; indirect are those that require the conversion of x-rays into photons of visible light and use scintillators for that matter, while direct x-rays are directly converted into charges with the use of photoconductors. Out of all the scintillators, cesium iodide has shown the best properties through research, while amorphous selenium proved to be the optimal photoconductor. CCD, CMOS and silicon photodiode are exclusively indirect digital detector systems, while flat panel detector can be found in both dir...
Extracorporeal membrane oxygenation (ECMO) is a form of temporary circulatory support in patients... more Extracorporeal membrane oxygenation (ECMO) is a form of temporary circulatory support in patients with impaired heart and / or lung function, in whom conventional methods of treatment have been exhausted. ECMO support does not treat the underlying pathology, but allows oxygenation and perfusion of vital organs until complete recovery or as a destination therapy for heart and / or lung transplantation. It is an integral part of modern intensive care for patients with severely impaired cardiac and / or respiratory function. Medical staff involved in the treatment and monitoring of patients on ECMO support should be familiar with the basics of the ECMO system, in accordance with the workplace and with approach to the patient on ECMO support. A radiologist who performs a radiological examination in such a patient requires cooperation with the anaesthesiology team and the team of perfusionists, so that the basic conditions for performing the examination are met and the examination is suc...
Medicina Fluminensis
U zadnjem desetljeću paradigma liječenja akutnog ishemijskog moždanog udara značajno je promijenj... more U zadnjem desetljeću paradigma liječenja akutnog ishemijskog moždanog udara značajno je promijenjena. Za razliku od nekadašnjeg pasivnog pristupa koji je podrazumijevao medikamentoznu terapiju i medicinsko praćenje, danas se primjenjuje aktivno liječenje koje uključuje intravensku trombolizu i mehaničku trombektomiju. Mehanička trombektomija počela se provoditi početkom ovog stoljeća, no značajan procvat metode započeo je objavom nekoliko multicentričnih randomiziranih studija (MR CLEAN, ESCAPE, SWIFT PRIME, REVASCAT, THRACE, PISTE) koje su 2015. godine potvrdile dobrobit ove metode liječenja. Danas je dokazano da je mehanička trombektomija povoljna i poželjna metoda liječenja bolesnika s akutnim ishemijskim moždanim udarom. Razvoj novih dijagnostičkih uređaja i standardizacija protokola snimanja omogućila je objektivniju procjenu stupnja oštećenja parenhima mozga, što je izravno utjecalo na odluku o daljnjem liječenju. Danas je postupak mehaničke trombektomije moguće provesti unuta...
Prikazani su rezultati lijecenja perkutanom angioplastikom kod malfunkcije arteriovenskih fistula... more Prikazani su rezultati lijecenja perkutanom angioplastikom kod malfunkcije arteriovenskih fistula za dijalizu - nasa prva iskustva.
Case Reports in Endocrinology
Acromegaly and gigantism are hormonal disorders which develop as a consequence of chronic growth ... more Acromegaly and gigantism are hormonal disorders which develop as a consequence of chronic growth hormone hypersecretion. The prefix pseudo- is used to describe a certain clinical condition without a clearly proven characteristic of pathophysiological mechanism and basic biochemical features; pseudoacromegaly or acromegaloidism match the definition from above. In this case reports, we will try to provide a concise overview of diagnostic evaluation of acromegaloid physical appearance, while discussing two cases of patients who have similar clinical acromegaloid features as the first sign of the disease but have completely different etiologic backgrounds of their acromegalic appearance. The first case is of a 57-year-old male who presented with a marked acral growth and coarse facial features, but the diagnosis of secondary amyloidosis caused by multiple myeloma was confirmed just after biopsy of tongue and buccal mucosa. The second case is that of a 63-year-old male with an acromegalo...
The aim of this study is to compare detector plates (radiographic image receptors) used in digita... more The aim of this study is to compare detector plates (radiographic image receptors) used in digital radiology. Detector plates are divided into computed radiography systems (phosphor plates) and digital radiography systems (CCD, CMOS, silicon photodiodes and flat panel detector). Phosphor plates use the principle of radiation-induced photostimulable luminescence, and can be read with the help of a laser reader (digitizer). Digital radiology systems are divided into indirect and direct; indirect are those that require the conversion of x-rays into photons of visible light and use scintillators for that matter, while direct x-rays are directly converted into charges with the use of photoconductors. Out of all the scintillators, cesium iodide has shown the best properties through research, while amorphous selenium proved to be the optimal photoconductor. CCD, CMOS and silicon photodiode are exclusively indirect digital detector systems, while flat panel detector can be found in both dir...
Extracorporeal membrane oxygenation (ECMO) is a form of temporary circulatory support in patients... more Extracorporeal membrane oxygenation (ECMO) is a form of temporary circulatory support in patients with impaired heart and / or lung function, in whom conventional methods of treatment have been exhausted. ECMO support does not treat the underlying pathology, but allows oxygenation and perfusion of vital organs until complete recovery or as a destination therapy for heart and / or lung transplantation. It is an integral part of modern intensive care for patients with severely impaired cardiac and / or respiratory function. Medical staff involved in the treatment and monitoring of patients on ECMO support should be familiar with the basics of the ECMO system, in accordance with the workplace and with approach to the patient on ECMO support. A radiologist who performs a radiological examination in such a patient requires cooperation with the anaesthesiology team and the team of perfusionists, so that the basic conditions for performing the examination are met and the examination is suc...
Medicina Fluminensis
U zadnjem desetljeću paradigma liječenja akutnog ishemijskog moždanog udara značajno je promijenj... more U zadnjem desetljeću paradigma liječenja akutnog ishemijskog moždanog udara značajno je promijenjena. Za razliku od nekadašnjeg pasivnog pristupa koji je podrazumijevao medikamentoznu terapiju i medicinsko praćenje, danas se primjenjuje aktivno liječenje koje uključuje intravensku trombolizu i mehaničku trombektomiju. Mehanička trombektomija počela se provoditi početkom ovog stoljeća, no značajan procvat metode započeo je objavom nekoliko multicentričnih randomiziranih studija (MR CLEAN, ESCAPE, SWIFT PRIME, REVASCAT, THRACE, PISTE) koje su 2015. godine potvrdile dobrobit ove metode liječenja. Danas je dokazano da je mehanička trombektomija povoljna i poželjna metoda liječenja bolesnika s akutnim ishemijskim moždanim udarom. Razvoj novih dijagnostičkih uređaja i standardizacija protokola snimanja omogućila je objektivniju procjenu stupnja oštećenja parenhima mozga, što je izravno utjecalo na odluku o daljnjem liječenju. Danas je postupak mehaničke trombektomije moguće provesti unuta...
Prikazani su rezultati lijecenja perkutanom angioplastikom kod malfunkcije arteriovenskih fistula... more Prikazani su rezultati lijecenja perkutanom angioplastikom kod malfunkcije arteriovenskih fistula za dijalizu - nasa prva iskustva.