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Query: "author" (Kocijančič Igor) .

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1.
CT colonography in detection of colorectal carcinoma
Amela Sofić, Šerif Beslić, Igor Kocijančič, Nedžad Šehović, 2010, original scientific article

Abstract: Background. Diagnostic methods used in screening and detectingand 2 lipomas,and 2 lipomas, among tumours there were 55 adenocarcinomas and 1 lymphoma. Results showed CT colonography among tumours there were 55 adenocarcinomas and 1 lymphoma. Results showed CTsensitivity to polyps to be 89.7%, barium enema 48.7%, and colonoscopy 94.9%. Sensitivity to tumours of CT colonography colonography colorectal CT barium enema followed by colonoscopy wereand colonoscopy was 100% and of barium enema 94.6%. Specificities and PPV were 100% in all procedures. The performed. After thesensitivity to polyps to be 89.7%, barium enema 48.7%, andcomfort assessment showed CT colonography as the far most comfortable out of three procedures. colonoscopy 94.9%. Sensitivity to tumours of CT colonography procedures a comfort assessment was done in all colonography. The aim of thisand colonoscopy was 100% and of barium enema 94.6%. Specificities and PPV were 100% in all procedures. The study was to establish diagnostic accuracy andpatients. Diagnostic positive comfort assessment showed CT colonography as the far most comfortable out of three procedures. results were verified by the pato-histological examination. Sensitivity, specificity, positive comfort of CT colonography compared carcinoma are digitorectal examination,topredicative value (PPV) and negative predicative value (NPV) were calculated for each procedure.
Keywords: CT colonography, barium enema, colonoscopy, colorectal polyp, colorectal carcinoma
Published in DiRROS: 18.03.2024; Views: 53; Downloads: 20
.pdf Full text (933,29 KB)

2.
3T MRI in evaluation of asbestos-related thoracic diseases : preliminary results
Janez Podobnik, Igor Kocijančič, Viljem Kovač, Igor Serša, 2010, original scientific article

Published in DiRROS: 15.03.2024; Views: 59; Downloads: 12
.pdf Full text (842,57 KB)

3.
CT-guided percutaneous transthoracic needle biopsy of lung lesions - 2-year experience at the Institute of radiology in Ljubljana
Igor Kocijančič, Ksenija Kocijančič, 2007, original scientific article

Abstract: Background. In 1883, Leyden described percutaneous lung biopsy, but it was notuntil 1970s that image guided fine needle chest biopsy gained widespread acceptance. Haaga and Alfidi reported CT-guided thoracic biopsy in 1976. Currently, tissue sampling of a thoracic lesion is indicated when the diagnosis is not obtained by the endobronchial technique and when the cytological diagnosis will modify the stage of the disease or influence the therapeutic strategy. Cytology obtained by small-gauge needle aspiration biopsy confirms the nature of the lesion in 80 - 95% of cases and carry a low incidence of major complications according to the literature. The purpose of this retrospective analysis was to provide basic data about diagnostic accuracy and incidence of pneumothorax and chest tube insertion with respect to percutaneous transthoracic CT-guided needle biopsy of lung lesions. Methods. After positioning of the patient we performed a spiral CT of the thorax with the accordingly placed metal mark, which helped us to set the optimal cutaneous entry point. After that we re-checked the localisation of the lesion and marked the entry point with a pen and clean the surface to keepit sterile. After we applied local anaesthetic subcutaneously, we used coaxial 18G Gallini aspiration biopsy needles with cutting tip for CT- guided aspiration cytologic examination. The length of the needle was chosen according to the distance of the targeted lesion. Results. From January 2005 to January 2007 forty-three patients - 24 men and 19 women who were 26-79 years old (mean +/- SD, 59.8 +/- 10 years) were referred to the Institute of Radiology to undergo the PTNB. One patient was referred twice. Consequently, the hospital records and images of 44 consecutive cases of percutaneous transthoracic fine needle aspiration biopsy procedure were retrospectively analysed. (Abstract truncated at 2000 characters)
Published in DiRROS: 22.02.2024; Views: 150; Downloads: 33
.pdf Full text (5,01 MB)

4.
Radiofrequency ablation of lung tumours - new perspective in treatment of lung neoplasms
Ksenija Kocijančič, Igor Kocijančič, 2007, original scientific article

Abstract: Background. Percutaneous radiofrequency ablation (RFA) is a minimally invasivetechnique used to treat solid tumours. Because of its ability to produce large volume of coagulation necrosis in controlled fashion this technique has been progressively tested as a possible treatment of lung malignancies. Recent clinical studies have shown that RFA enables successful treahnent of relatively small lung malignancies with high rate of complete response and acceptable morbidity and have suggested that the technique could represent a viable alternate or complementary method for patients with non-small cell lung cancer or lung metastases of favourable histotypes who arenot candidates for surgical resection. Conclusions. Initial intenational studies as well as the clinical experience of Institute of Radiology in Clinical Center Ljubljana, although limited, indicated that RFA is mostly welltolerated by patients and also, that it can result in complete necrosis oftargeted lesion. Pneumothorax is most common procedure related complication,occurring in up to 40% of cases, with approx. half of them requiring drainage.
Published in DiRROS: 22.02.2024; Views: 113; Downloads: 24
.pdf Full text (239,46 KB)

5.
Imaging of small amounts of pleural fluid. Part two - physiologic pleural fluid
Igor Kocijančič, 2006, review article

Published in DiRROS: 15.02.2024; Views: 101; Downloads: 26
.pdf Full text (148,54 KB)

6.
Imaging of small amounts of pleural fluid. Part one - small pleural effusions
Igor Kocijančič, 2005, review article

Abstract: Background. Small pleural effusions are not readily identified on conventionalradiographic views of the chest, but may be an important finding, sometimes leading, via thoracocentesis, to a definitive diagnosis of pleural carcinomatosis, infection or transudate. A small meniscus sign and a medial displacement of the costophrenic angle are the only subtle signs of small accumulations of fluid on posteroanterior chest X-rays. On lateral views the finding of a small meniscus sign in the posterior costophrenic angle is the sign of small pleural effusion. Conclusions. Lateral decubitus chest radiographs were used for many years for the diagnosis of small pleural effusions. In last decades ultrasonography of pleural space becomes a leading real-time method for demonstrating small pleural effusions.
Published in DiRROS: 14.02.2024; Views: 98; Downloads: 25
.pdf Full text (2,15 MB)

7.
Sonography of pleural space in healthy pregnants - preliminary results
Igor Kocijančič, 2005, original scientific article

Abstract: Background. The purpose of our study was to determine the incidence of sonographically visible normal pleural fluid finding in healthy pregnants. Methods. Chest sonography was performed in 47 pregnant volunteers, searching for pleural fluid, first leaning on the elbow and than in a sitting position. 9-12 MHz linear probe was used. If the result of the first examination was positive (at least 2 mm thick anechoic layer), we repeated the procedure with 3-6 MHz large radius convex probe. Results. The fluid layer of typical wedge-shaped appearance was visible in the pleural space of 28/47 (59.5%) pregnant volunteers, on both sides in 18/47 (38.3%) and unilaterally in 10/47 (21.2%). The mean fhickness of fluid layer (mean of positive results in both positions) was 2.86 mm (SD 1.09 mm, range from 1.8 mm to 6.4 mm). More than 3 mm thick fluid layer was easily detected with 3-6 MHz abdominal convex probe in 7/47 (15%). Conclusions. Small amounts of pleural fluid can sometimes be detected by chest sonography, and hence also by abdominal sonography, in otherwise healthy pregnants. Such a positive result, if isolated, should not be taken as a sign of occult thoracic disease.
Published in DiRROS: 14.02.2024; Views: 98; Downloads: 22
.pdf Full text (115,49 KB)

8.
Sonographically guided fine-needle aspiration biopsies of adrenal masses in lung cancer patients, eleven-year experience
Igor Kocijančič, 2004, original scientific article

Abstract: Purpose. The aim of this retrospective study was to define the accuracy and safety of the ultrasonographically (US) guided fine-needle aspiration biopsy (FNAB) of the enlarged adrenals in the patients with lung cancer. Patients andmethods. In eleven-year period 64 patients with cytologically proven lung cancer underwent USguided FNABs of adrenal masses. The accuracy of the method was assessed on the basis of cytology findings and the safety on the number ofcomplications reported after the procedure. Results. US-guided aspiration biopsy turned out to be accurate in 58/64 cases (91%), and very safe with only4/64 (6%) minor complications. In 52/58 (90%) cases, the cytology sample was found to be malignant. In 6 cases (10%), isolated adrenal masses were adenomas. Conclnsions. We recommend US guided FNAB as a safe and reliable diagnostic method that has many advantages over computer tomography (CT) guided FNAB, such as safety, patient friendliness, no X-rays and its reproducibility.
Published in DiRROS: 13.02.2024; Views: 103; Downloads: 25
.pdf Full text (93,55 KB)

9.
The accuracy of chest sonography in the diagnosis of small pleural effusion
Igor Kocijančič, 2003, original scientific article

Abstract: Background. The aim of the stndy was to evaluate the accuracy of chest sonography in the radiological diagnosis of small pleural effusions. Patients and methods. Patients referred for abdominal and/or chest sonographies for various reasons were examined for sonographic features of pleural effusion. From January 1997 till January 2000, 69 patients were included into the study.Fifty-two patients were found to have pleural effusion not exceeding 15 mm in depth, the rest of them served as controls. Subsequently erect posteroanterior and expiratory lateral decubitus projections were done in all patients. Results. Compared to radiologicai examination chest sonography had apositive predictive value of 92% in the diagnosis of small pleural effusions in our study population. The mean thickness of fluid was 9.2 mrn on ultrasonography and 7.6 mm on expiratory lateral decubitus views (P<0.01). Conclusions. Chest sonography showed a high degree of accuracy for demonstrating small pleural effusions and could repIace lateral decubitus chest radiographs adequately.
Published in DiRROS: 06.02.2024; Views: 112; Downloads: 33
.pdf Full text (1,36 MB)

10.
How reliable is classic chest radiography in the diagnosis of small pleural effusion
Igor Kocijančič, Ksenija Kocijančič, 1999, original scientific article

Abstract: Purpose. To evaluate the usefulness of expirium lateral decubitus views in theradiological diagnosis of small pleural effusions. Materials and methods. Patients referred to abdominal sonography for different reasons were routinelychecked for possible pleural effusion. From November 1994 till May 1996, 36 such patients were found to have pleural effusion not exceeding 15 mmand were included in the study. Patients were examined radiologically in erect PA and lateral projections and, after 5 min. in decubitus position, in inspiratory-expiratory lateral decubitus projections with 10 hip elevation andcentral beam on the lateral chest wall. Results. In 22 out of 36 patients (61 %), the pleural fluid was not visible on erect PA and lateral chest radiogram. However, the fluid was visible in 35/36 patients (97%) in expirium from lateral decubitus view. The average thickness of fluid from lateral decubitus views in inspirium and expirium was 4.3 and 7.9 mm, respectively. In31 out of 36 patients (86%), the thickness of the fluid layer as measured inexpirium and inspirium was different. In 16%, the fluid was not visible on inspirium lateral decubitus projections. Conclusions. Radiography turned out to be almost as sensitive as sonography in detection of small pleural effusions. Lateral decubitus views taken in expirium contributed essentially to the diagnostic sensitivity in our study.
Published in DiRROS: 22.01.2024; Views: 148; Downloads: 36
.pdf Full text (414,48 KB)

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