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  1. Article: Endovascular treatment of occlusive lesions of the subclavian and innominate arteries.

    Brountzos, Elias N / Malagari, Katerina / Kelekis, Dimitrios A

    Cardiovascular and interventional radiology

    2006  Volume 29, Issue 4, Page(s) 503–510

    MeSH term(s) Angioplasty, Balloon, Coronary ; Arterial Occlusive Diseases/surgery ; Arterial Occlusive Diseases/therapy ; Brachiocephalic Trunk ; Endarterectomy ; Humans ; Subclavian Steal Syndrome/surgery ; Subclavian Steal Syndrome/therapy
    Language English
    Publishing date 2006-07
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 603082-8
    ISSN 1432-086X ; 0174-1551 ; 0342-7196
    ISSN (online) 1432-086X
    ISSN 0174-1551 ; 0342-7196
    DOI 10.1007/s00270-005-0124-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Rare right ventricular myxoma detected incidentally on a FAST examination.

    Brestas, Paraskevas S / Malagari, Katerina S / Kelekis, Dimitrios A

    Journal of clinical ultrasound : JCU

    2005  Volume 33, Issue 3, Page(s) 143–145

    Abstract: A young man underwent Focused Assessment with Sonography in Trauma (FAST) scan for blunt abdominal trauma. An incidental finding on the pericardial view was the presence of a tumor in the right ventricle. Detailed cardiac imaging and subsequent excision ... ...

    Abstract A young man underwent Focused Assessment with Sonography in Trauma (FAST) scan for blunt abdominal trauma. An incidental finding on the pericardial view was the presence of a tumor in the right ventricle. Detailed cardiac imaging and subsequent excision revealed the presence of a myxoma. The patient had no obvious cardiac symptoms, but the awareness and experience of the examiner during the FAST examination detected this rare heart tumor at a latent stage, preventing serious, irreversible complications. This case demonstrates the potential importance of looking above the diaphragm during routine abdominal sonography, especially in patients who are critically ill.
    MeSH term(s) Adult ; Diagnosis, Differential ; Echocardiography, Transesophageal/methods ; Heart Neoplasms/diagnostic imaging ; Heart Neoplasms/pathology ; Heart Ventricles/diagnostic imaging ; Heart Ventricles/pathology ; Humans ; Magnetic Resonance Imaging ; Male ; Myxoma/diagnostic imaging ; Myxoma/pathology ; Tomography, X-Ray Computed
    Language English
    Publishing date 2005-03
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 189393-2
    ISSN 1097-0096 ; 0091-2751
    ISSN (online) 1097-0096
    ISSN 0091-2751
    DOI 10.1002/jcu.20103
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Image-guided radiofrequency ablation (RFA) of unresectable hepatic tumors using a triple-spiral-shaped electrode needle: initial experience in 34 patients.

    Thanos, Loukas / Poulou, Loukia S / Ziakas, Panayiotis D / Kelekis, Alexis D / Pomoni, Maria / Kelekis, Dimitrios A

    Cardiovascular and interventional radiology

    2010  Volume 33, Issue 1, Page(s) 107–112

    Abstract: We evaluated the safety and efficacy of image-guided radiofrequency ablation (RFA) using a triple-spiral-shaped electrode needle for unresectable primary or metastatic hepatic tumors. Thirty-four patients with 46 index tumors were treated. Ablation zone, ...

    Abstract We evaluated the safety and efficacy of image-guided radiofrequency ablation (RFA) using a triple-spiral-shaped electrode needle for unresectable primary or metastatic hepatic tumors. Thirty-four patients with 46 index tumors were treated. Ablation zone, morbidity, and complications were assessed. The lesions were completely ablated with an ablative margin of about 1 cm. Five patients (14.7%) with a lesion larger than 4.5 cm had local tumor progression after 1 month and were retreated. Hemothorax, as a major complication, occurred in 1 of 34 patients (3.0%) or 1 of 46 lesions ablated (2.2%). RFA using this new electrode needle can be effective in the treatment of large unresectable hepatic tumors.
    MeSH term(s) Abdominal Pain/etiology ; Aged ; Aged, 80 and over ; Catheter Ablation/instrumentation ; Catheter Ablation/methods ; Female ; Fever/etiology ; Follow-Up Studies ; Humans ; Leukocytosis/etiology ; Liver Neoplasms/diagnostic imaging ; Liver Neoplasms/secondary ; Liver Neoplasms/surgery ; Male ; Middle Aged ; Needles/adverse effects ; Neoplasm Recurrence, Local ; Retrospective Studies ; Surgery, Computer-Assisted/instrumentation ; Surgery, Computer-Assisted/methods ; Tomography, X-Ray Computed
    Language English
    Publishing date 2010-02
    Publishing country United States
    Document type Evaluation Studies ; Journal Article
    ZDB-ID 603082-8
    ISSN 1432-086X ; 0342-7196 ; 0174-1551
    ISSN (online) 1432-086X
    ISSN 0342-7196 ; 0174-1551
    DOI 10.1007/s00270-009-9649-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Image-guided radiofrequency ablation of a pancreatic tumor with a new triple spiral-shaped electrode.

    Thanos, Loukas / Poulou, Loukia S / Mailli, Lito / Pomoni, Maria / Kelekis, Dimitrios A

    Cardiovascular and interventional radiology

    2010  Volume 33, Issue 1, Page(s) 215–218

    Abstract: Image-guided, minimally invasive treatment modalities have become an area of considerable interest and research during the last few years for the treatment of primary and secondary liver tumors. We report our experience with an unresectable pancreatic ... ...

    Abstract Image-guided, minimally invasive treatment modalities have become an area of considerable interest and research during the last few years for the treatment of primary and secondary liver tumors. We report our experience with an unresectable pancreatic tumor, treated with application of radiofrequency ablation under CT guidance that even though a complication occurred during the procedure, had excellent results on follow-up CT scans.
    MeSH term(s) Aged, 80 and over ; Catheter Ablation/instrumentation ; Catheter Ablation/methods ; Electrodes ; Equipment Design ; Female ; Humans ; Pancreatic Neoplasms/diagnostic imaging ; Pancreatic Neoplasms/surgery ; Surgery, Computer-Assisted/instrumentation ; Tomography, X-Ray Computed
    Language English
    Publishing date 2010-02
    Publishing country United States
    Document type Case Reports ; Evaluation Studies ; Journal Article
    ZDB-ID 603082-8
    ISSN 1432-086X ; 0342-7196 ; 0174-1551
    ISSN (online) 1432-086X
    ISSN 0342-7196 ; 0174-1551
    DOI 10.1007/s00270-009-9548-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Endovascular stenting for the management of port-a-cath associated superior vena cava syndrome.

    Kostopoulou, Vasiliki / Tsiatas, Marinos L / Kelekis, Dimitrios A / Dimopoulos, Meletios-Athanasios / Papadimitriou, Christos A

    Emergency radiology

    2008  Volume 16, Issue 2, Page(s) 143–146

    Abstract: Port-a-cath systems are often essential for the administration of long-term chemotherapy in the treatment of malignancies because they improve venous access, but they are associated with complications, mainly thrombosis of central veins. In the present ... ...

    Abstract Port-a-cath systems are often essential for the administration of long-term chemotherapy in the treatment of malignancies because they improve venous access, but they are associated with complications, mainly thrombosis of central veins. In the present report, we describe a case of right subclavian and superior vena cava port-a-cath-related thrombosis causing superior vena cava syndrome (SVCS) in a patient affected by Hodgkin's disease. The patient underwent percutaneous revascularization with stent positioning, experiencing immediate relief of symptoms. Endovascular procedures for the treatment of nonmalignant SVCS seem to represent a challenging therapeutic option.
    MeSH term(s) Catheters, Indwelling/adverse effects ; Female ; Hodgkin Disease/complications ; Humans ; Middle Aged ; Stents ; Superior Vena Cava Syndrome/complications ; Superior Vena Cava Syndrome/diagnostic imaging ; Superior Vena Cava Syndrome/therapy ; Thrombosis/etiology ; Thrombosis/therapy ; Tomography, X-Ray Computed
    Language English
    Publishing date 2008-03-06
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1425144-9
    ISSN 1438-1435 ; 1070-3004
    ISSN (online) 1438-1435
    ISSN 1070-3004
    DOI 10.1007/s10140-008-0714-5
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  6. Article: Ultrasonographic detection of regional lymph node metastases in patients with intermediate or thick malignant melanoma.

    Brountzos, Elias N / Panagiotou, Irene E / Bafaloukos, Dimitrios I / Kelekis, Dimitrios A

    Oncology reports

    2003  Volume 10, Issue 2, Page(s) 505–510

    Abstract: Careful monitoring of regional lymph nodes and early detection of metastases in malignant melanoma patients has an impact on their survival, since it may permit beneficial surgical therapy. Palpation is routinely used in clinical practice. The value of ... ...

    Abstract Careful monitoring of regional lymph nodes and early detection of metastases in malignant melanoma patients has an impact on their survival, since it may permit beneficial surgical therapy. Palpation is routinely used in clinical practice. The value of ultrasonography for routine follow-up of melanoma patients, still, is not generally accepted. The aim of our study was to assess the sensitivity and specificity of ultrasound and clinical examination respectively, in the detection of melanoma regional node metastases. Additionally, we evaluated whether early detection of metastases improved overall survival. One hundred and forty-eight melanoma patients with an intermediate or thick primary lesion were followed between January 1997 and May 2001. Clinical examination and concomitant regional lymph node ultrasonography were performed, every 3-4 months. If suspicious findings were identified, regional lymph node dissection was undertaken. Forty-four from the initial 148 patients relapsed with regional lymph nodal metastases. In 11 patients (25%) palpation failed to reveal the disease and metastases were depicted only by ultrasonography. In only 1 patient ultrasonography was false-negative. The sensitivity and specificity of palpation were 72.7 and 97% respectively, while those of ultrasonography were 97.7 (p<0.001) and 98% respectively. Ultrasonography was more sensitive in detecting lymph node metastases in the axilla (100%) and the groin (93.3%). When overall survival of patients presenting with local-regional recurrence was calculated--depending on the number of involved lymph nodes--a survival benefit (p<0.05) was found for patients with only one lymph node metastasis. In conclusion, ultrasonography is superior to clinical examination in the early detection of regional lymph node metastases from an intermediate or thick malignant melanoma and should be a part of those patients' surveillance.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Axilla ; Female ; Follow-Up Studies ; Humans ; Lymph Node Excision ; Lymph Nodes/diagnostic imaging ; Lymphatic Metastasis ; Male ; Melanoma/diagnostic imaging ; Melanoma/secondary ; Middle Aged ; Neoplasm Recurrence, Local/diagnostic imaging ; Palpation ; Predictive Value of Tests ; Prognosis ; Sensitivity and Specificity ; Skin Neoplasms/diagnostic imaging ; Skin Neoplasms/pathology ; Survival Rate ; Ultrasonography
    Language English
    Publishing date 2003-03
    Publishing country Greece
    Document type Comparative Study ; Journal Article
    ZDB-ID 1222484-4
    ISSN 1791-2431 ; 1021-335X
    ISSN (online) 1791-2431
    ISSN 1021-335X
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  7. Article: Lower gastrointestinal bleeding treated with transcatheter arterial embolization. Case report and review of the literature.

    Pomoni, Maria / Sissopoulos, Athanasios / Condilis, Nicolas / Pomoni, Anastasia / Chalazonitis, Athanasios N / Vasileiou, Ioanna / Ptohis, Nikolaos / Kelekis, Dimitrios A

    Annali italiani di chirurgia

    2008  Volume 79, Issue 4, Page(s) 281–286

    Abstract: Acute lower gastrointestinal bleeding, is often a dramatic situation, associated with mortality rate up to 28%. Currently transcatheter alternatives have found their place in the therapeutic spectrum of this situation. An interesting question is when ... ...

    Abstract Acute lower gastrointestinal bleeding, is often a dramatic situation, associated with mortality rate up to 28%. Currently transcatheter alternatives have found their place in the therapeutic spectrum of this situation. An interesting question is when should this procedure be performed and which are the difficulties when performing it. We present the case of a 75-year old woman with acute massive lower gastrointestinal bleeding on the tenth post-operative day of a colic and partial ileal resection. Superselective angiography of the superior mesenteric artery was obtained that disclosed marked contrast extravasation of distal branches of the left colic artery as well as from a small branch feeding the distal enteric anastomoses. Clinical success was achieved after superselective embolization which was accomplished by using polyvinyl alcohol particles. The patient was discharged 5 days later and there were no procedure-related complications during 6-month follow-up period. So, especially in post-operative patients who are considered to be poor candidates for surgical treatment, arterial embolotherapy should be established not only as treatment option, but also as first line therapy for LGI bleeding.
    MeSH term(s) Acute Disease ; Aged ; Anastomosis, Surgical/adverse effects ; Angiography ; Catheterization ; Embolization, Therapeutic/instrumentation ; Embolization, Therapeutic/methods ; Extravasation of Diagnostic and Therapeutic Materials/therapy ; Female ; Follow-Up Studies ; Gastrointestinal Hemorrhage/diagnostic imaging ; Gastrointestinal Hemorrhage/etiology ; Gastrointestinal Hemorrhage/therapy ; Humans ; Mesenteric Artery, Superior/diagnostic imaging ; Polyvinyl Alcohol/administration & dosage ; Postoperative Hemorrhage/therapy ; Time Factors
    Chemical Substances Polyvinyl Alcohol (9002-89-5)
    Language English
    Publishing date 2008-07
    Publishing country Italy
    Document type Case Reports ; Journal Article
    ZDB-ID 418927-9
    ISSN 2239-253X ; 0003-469X
    ISSN (online) 2239-253X
    ISSN 0003-469X
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  8. Article: Giant adrenal myelolipoma with minimal fat content in a patient with homozygous beta-thalassemia: appearance on MRI.

    Kelekis, Nikolaos L / Alexopoulou, Efthymia / Brountzos, Elias N / Ladis, Vasilis / Boussiotou, Angeliki / Kelekis, Dimitrios A

    Journal of magnetic resonance imaging : JMRI

    2003  Volume 18, Issue 5, Page(s) 608–611

    Abstract: Giant adrenal myelolipoma is an uncommon entity. We present the atypical MR imaging findings of a giant adrenal myelolipoma in a patient with homozygous beta-thalassemia with histopathology correlation. The tumor showed a drop in signal on the opposed- ... ...

    Abstract Giant adrenal myelolipoma is an uncommon entity. We present the atypical MR imaging findings of a giant adrenal myelolipoma in a patient with homozygous beta-thalassemia with histopathology correlation. The tumor showed a drop in signal on the opposed-phase images, with no evidence of macroscopic fat contents, and demonstrated very high signal intensity on T2-weighted images. Giant adrenal myelolipoma should be considered in the differential diagnosis of tumors with the combination of the above MR imaging characteristics.
    MeSH term(s) Adipose Tissue/pathology ; Adrenal Gland Neoplasms/complications ; Adrenal Gland Neoplasms/pathology ; Adult ; Diagnosis, Differential ; Homozygote ; Humans ; Magnetic Resonance Imaging ; Male ; beta-Thalassemia/complications
    Language English
    Publishing date 2003-11
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1146614-5
    ISSN 1522-2586 ; 1053-1807
    ISSN (online) 1522-2586
    ISSN 1053-1807
    DOI 10.1002/jmri.10401
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  9. Article: Pancreatitis-associated splenic artery pseudoaneurysm: endovascular treatment with self-expandable stent-grafts.

    Brountzos, Elias N / Vagenas, Kostantinos / Apostolopoulou, Sotiria C / Panagiotou, Irene / Lymberopoulou, Dimitra / Kelekis, Dimitrios A

    Cardiovascular and interventional radiology

    2003  Volume 26, Issue 1, Page(s) 88–91

    Abstract: We present a patient with a splenic artery pseudoaneurysm (SAPA) treated with placement of self-expandable stent-grafts. The procedure was complicated by stent-graft migration, but successful management resulted in lasting exclusion of the SAPA, while ... ...

    Abstract We present a patient with a splenic artery pseudoaneurysm (SAPA) treated with placement of self-expandable stent-grafts. The procedure was complicated by stent-graft migration, but successful management resulted in lasting exclusion of the SAPA, while the patency of the splenic artery was preserved. This is the first report of self-expandable stent-graft treatment of SAPA.
    MeSH term(s) Aged ; Aneurysm, False/diagnostic imaging ; Aneurysm, False/etiology ; Aneurysm, False/therapy ; Angiography, Digital Subtraction ; Blood Vessel Prosthesis ; Female ; Foreign-Body Migration ; Humans ; Pancreatitis/complications ; Radiography, Interventional ; Splenic Artery ; Stents ; Tomography, X-Ray Computed
    Language English
    Publishing date 2003-01
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 603082-8
    ISSN 1432-086X ; 0174-1551 ; 0342-7196
    ISSN (online) 1432-086X
    ISSN 0174-1551 ; 0342-7196
    DOI 10.1007/s00270-002-1979-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Internal iliac artery aneurysm embolization with fibrin sealant: a simple and effective solution.

    Brountzos, Elias N / Malagari, Katerina / Papathanasiou, Mathildi A / Gougoulakis, Alexandros / Kelekis, Dimitrios A

    Cardiovascular and interventional radiology

    2003  Volume 26, Issue 1, Page(s) 76–80

    Abstract: Endovascular treatment of internal iliac artery (IIA) aneurysms is an attractive alternative to surgical management, because the former is associated with less morbidity and mortality. Embolization with coils or exclusion of the IIA orifice with stent- ... ...

    Abstract Endovascular treatment of internal iliac artery (IIA) aneurysms is an attractive alternative to surgical management, because the former is associated with less morbidity and mortality. Embolization with coils or exclusion of the IIA orifice with stent-grafts are the preferred techniques. Although uncommon, technical failures occur with reported aneurysm rupture. Two patients with IIA aneurysms are reported here, where we describe successful occlusion of their IIA aneurysms with the use of fibrin sealant, after initial failure of coil embolization.
    MeSH term(s) Aged ; Aged, 80 and over ; Angiography, Digital Subtraction ; Embolization, Therapeutic ; Fibrin/therapeutic use ; Humans ; Iliac Aneurysm/diagnostic imaging ; Iliac Aneurysm/therapy ; Male ; Stents
    Chemical Substances Fibrin (9001-31-4)
    Language English
    Publishing date 2003-01
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 603082-8
    ISSN 1432-086X ; 0174-1551 ; 0342-7196
    ISSN (online) 1432-086X
    ISSN 0174-1551 ; 0342-7196
    DOI 10.1007/s00270-002-1955-4
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