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  • 1
    Electronic Resource
    Electronic Resource
    Die Tumoren des Glomus caroticum und des Glomus vagale (1975)
    Springer
    European archives of oto-rhino-laryngology and head & neck 210 (1975), S. 299-300 
    Details
    ISSN: 1434-4726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We report 18 oases of nonchromaffine paragangliomas (= chemodectomas) of the neck. The diagnostic procedures including angiographic examinations are discussed. Surgical techniques are described in relation to the risks and with respect to the preoperative precautions. The results of the follow up studies are given. We direct particular attention to the familiar disposition as well as to chemodectomas of both sides in two of our patients. Finally light microscopical and fine structure observations are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00460041
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Controlled trial of high-versus low-dose aspirin treatment after percutaneous transluminal angioplasty in patients with peripheral vascular disease (1994)
    Springer
    Journal of molecular medicine 72 (1994), S. 673-680 
    Details
    ISSN: 1432-1440
    Keywords: Angioplasty ; Transluminal ; Peripheral arterial disease ; Atherosclerosis ; Aspirin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Percutaneous transluminal angioplasty of aortoiliac and femoropopliteal atherosclerotic lesions can provide long-lasting hemodynamic improvement. High-dose aspirin is commonly prescribed as reocclusion prophylaxis, but low doses would be preferable because of fewer adverse effects. We performed a double-blind, randomized, controlled clinical trial in patients with peripheral vascular disease with lesions appropriate for angioplasty. We compared the efficacy and side effects of two doses of aspirin (50 mg vs. 900 mg daily) during a period of 12 months after angioplasty. A total of 359 patients were evaluated: 175 were randomly assigned to treatment with 900 mg aspirin daily and 184 to 50 mg aspirin a day. Thirty-nine patients developed restenosis at the angioplasty site; the cumulative percentage of event-free survival after 1 year (patency rate) was 85% in the 900-mg group and 84% in the 50-mg group. An equivalence test showed the two groups equivalent with respect to restenosis rates (P = 0.003 for an equivalence region of 〈 10% difference). Nine patients (5%) in the 900-mg group had serious gastrointestinal side effects (peptic ulcer, eight; erosive gastritis requiring transfusion, one) compared to two (peptic ulcer) in the 50-mg group (P = 0.03). The results of our study show that a dose of 50 mg aspirin a day is as effective as one of 900 mg for the prevention of restenoses after lower limb angioplasty, and that severe gastrointestinal side effects are less frequent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00212985
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  • 3
    Electronic Resource
    Electronic Resource
    Dreidimensionale (3-D) Visualisierung der Leber zur Planung erweiterter Leberresektionen (1999)
    Springer
    Der Chirurg 70 (1999), S. 233-238 
    Details
    ISSN: 1433-0385
    Keywords: Key words: Liver tumor ; Liver resection ; Computed tomography ; Three-dimensional visualization ; Preoperative planning. ; Schlüsselwörter: Lebertumoren ; Leberresektionen ; Computertomographie ; dreidimensionale Visualisierung ; präoperative Planung.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Bei Patienten mit Lebertumoren stellen Sonographie, Computertomographie (CT) und in einigen Fällen die Magnetresonanztomographie (MRT) die Grundlage für die präoperative Planung von Leberresektionen dar. Auf der Basis von CT-Untersuchungen wurde ein dreidimensionales (3-D) Visualisierungsprogramm entwickelt. In dieser Studie wurde das 3-D-Visualisierungsprogramm bei 6 Patienten mit problematischer Lokalisation von Lebertumoren zur Planung des operativen Vorgehens angewendet. Bei 5 von 6 Patienten konnte die Leberresektion – wie präoperativ am Computermodell geplant – durchgeführt werden. Die intraoperativen Befunde entsprachen den 3-D-Visualisierungen. Die 3-D-Visualisierung der Leber erlaubte eine anschauliche und interaktive Planung von Leberresektionen am Computermodell und stellte somit eine verbesserte Vorbereitung für die komplexen Leberresektionen dar.
    Notes: Summary. Preoperative planning of liver resections in patients with liver tumors is based on sonography, computed tomography and magnetic resonance imaging. A new three-dimensional (3D) visualization program was developed based on CT data. This visualization program was used for preoperative planning in 6 patients with liver tumors in problematic intrahepatic localizations. In 5 out of 6 patients the liver resection could be performed as preoperatively planned. The intraoperative findings agreed with the 3D visualization in all these patients. 3D Visualization of the liver allowed clear and interactive planning of liver resections and improved the preparation of complex liver resections.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001040050636
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  • 4
    Electronic Resource
    Electronic Resource
    Storage-phosphor digital radiography in genitourinary radiology (1990)
    Springer
    World journal of urology 8 (1990), S. 143-149 
    Details
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A digital-projection radiography system with potential applications in genitourinary imaging is presented. The system replaces the traditional film-screen combinations by storage phosphor screens but continues to use cassettes in conventional X-ray equipment. Technical features such as consistently optimal image brightness and contrast across an extremely wide exposure range and edge-enhancement capabilities overcome deficiencies seen with conventional film-screen systems, such as improper exposure and poor contrast discrimination. Images obtained with a dual-energy radiation spectrum selectively demonstrate soft-tissue- or bone-equivalent structures and diminish the obscuring effect of bowel gas. Problems resulting from the singular reliance on film as a display and storage medium in conventional radiography are resolved in digital radiography by fast and simultaneous electronic access to images that can be displayed on high-resolution monitors or laser-printed films. The basic technical features of storage-phosphor digital imaging as compared to conventional radiography are described. A summary of recently published results relevant to genitourinary examinations is given and radiographic examples are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01576760
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  • 5
    Electronic Resource
    Electronic Resource
    The role of CT in patient management after liver transplantation (1992)
    Springer
    European radiology 2 (1992), S. 105-110 
    Details
    ISSN: 1432-1084
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00171393
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  • 6
    Electronic Resource
    Electronic Resource
    Hepatic hemangiosarcoma: imaging findings and differential diagnosis (2000)
    Springer
    European radiology 10 (2000), S. 129-133 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Hemangiosarcoma – Liver – CT – Angiography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Primary hepatic angiosarcoma is a rare mesenchymal tumor of the liver that usually presents with nonspecific symptoms in elderly men. We present four cases of hepatic hemangiosarcoma and discuss the imaging characteristics of this entity. Our series shows that this tumor is not uncommon in younger patients with no associated risk factors such as previous exposure to thorotrast or vinyl chloride. Our experiences on a limited number of patients suggests that the combined use of angiography and dual-phase helical CT provides a better identification of the tumor and its complications. Analysis of imaging studies in patients with hepatic hemangiosarcoma reveals hypervascular lesions. Common complications were portal vein thrombosis, Budd-Chiari syndrome, as well as arterio-venous or arterio-portal shunts. Due to the vascularity of the tumor, percutaneous liver biopsy is hazardous.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050018
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  • 7
    Electronic Resource
    Electronic Resource
    Role of the intra-arterial calcium stimulation test in the preoperative localization of insulinomas (2000)
    Springer
    European radiology 10 (2000), S. 1582-1586 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Insulinoma – Neoplasm – Calcium – Pancreas
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The aim of this study was determination of the significance of the arterial stimulation test with venous sampling (ASVS) in the preoperative localization of insulinoma. Eleven patients with endogenous hyperinsulinism underwent preoperative transabdominal US, spiral computer tomography (spiral CT), MRI, endoscopic ultrasound (EUS) as well as angiography (DSA) combined with ASVS. The results were compared with intraoperative findings, intraoperative ultrasound (IOUS) and histopathology. There were no complications related to the ASVS test. In 11 patients the tumor could be localized with the various modalities as follows: US 1 of 11 (9 %), MRI 3 of 10 (30 %), spiral CT 4 of 11 (36 %), EUS 5 of 10 (50 %), DSA 8 of 11 (73 %), and ASVS 10 of 11 (91 %). In 2 patients the tumors were intraoperatively neither palpable nor detectable by IOUS, and consequently the intraoperative management was governed by information provided by DSA combined with the ASVS test. Ten patients had solitary benign insulinomas and 1 patient with multiple endocrine neoplasia I had two tumors adjacent to each other in the pancreatic tail. Arterial stimulation test with venous sampling was the most sensitive preoperative test for regionalizing the insulinoma in our set of patients. It can be performed safely in the course of a regular DSA examination and may affect intra-operative management in patients in whom the tumors are not detectable by palpation or IOUS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300000428
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  • 8
    Electronic Resource
    Electronic Resource
    Endoluminal grafting of abdominal aortic aneurysms: experience with the Talent endoluminal stent graft (2000)
    Springer
    European radiology 10 (2000), S. 636-641 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Aortic aneurysm – Endovascular grafting – Endograft – Endoleak
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The aim of this study was to evaluate the Talent endoluminal stent graft (TESG) in treating abdominal aortic aneurysms (AAA). The TESG is a polyester-covered nitinol endograft (proximal diameters 20–38 mm and iliac limb diameters 8–22 mm). Twenty-two men were treated with the TESG via bilateral femoral arteriotomies. Pre-implantation, coil embolization of various vessels arising from the aneurysm was performed in 6 patients. Plain radiographs and spiral CT angiograms (CTA) were carried out at 7 days, 3, 6, and 12 months following TESG implantation or re-intervention. Median aortic and iliac diameters were 27 mm (range 20–34 mm) and 14 mm (range 10–19 mm). The corresponding graft diameters were 30 mm (range 24–38 mm) and 14 mm (range 12–20 mm). No patient was rejected purely on the basis of too large aortic or iliac diameters. Eight patients required custom-made grafts. Graft implantation was successful in all patients. There were no blood transfusions, distal embolic episodes, or conversions to open surgery. Re-intervention was necessary in 1 patient. Complications included one fatal myocardial infarction, one inguinal hematoma, and two superficial wound infections. The aneurysm thrombosed completely following implantation in 14 patients and at 3 or 6 months in 4 other patients. One patient with endoleak is awaiting his 3-month control and 2 patients show tiny endoleaks but reduction of aneurysm size. The mean aneurysm size decreased significantly from 58 ± 10 to 53 ± 13 mm (p 〈 0.0005). Due to the large sizes available and the option of custom-made grafts, the TESG helps widen the spectrum of patients who can be treated with endoluminal grafting. The treatment is associated with a significant reduction in aneurysm size.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050976
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  • 9
    Electronic Resource
    Electronic Resource
    Neurological complications and myelographic features of achondroplasia (1978)
    Springer
    Neuroradiology 17 (1978), S. 59-63 
    Details
    ISSN: 1432-1920
    Keywords: Achondroplasia ; Spinal stenosis ; Myelography ; Neurological complications
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The neurological complications of achondroplasia are discussed based on the literature and two of our cases. Thoracolumbar kyphosis hypertrophic osteoarthritis, and intervertebral disc herniations may cause early neurological disturbances to adult achondroplasts owing to the spinal stenosis. The symptoms range from nerve root compression syndromes to complete transverse myelopathy. The radiographic features are characteristic, but the value of myelography for etiological clarification and location of the pathological process is limited. The significance of early symptoms and signs must be stressed and early decompression performed, as results are very disappointing once extensive neurological damage has occurred. An extensive laminectomy is usually indicated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00345272
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  • 10
    Electronic Resource
    Electronic Resource
    Cochleomeatal scintigraphy — a new tool in modern neuroradiological diagnosis of acoustic neuroma (1984)
    Springer
    Neuroradiology 26 (1984), S. 107-111 
    Details
    ISSN: 1432-1920
    Keywords: Scintigraphy ; CT ; acoustic neuroma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Cochleomeatal scintigraphy (CMS) and CT or air CT cisternography are today the methods of choice for the detection or exclusion of a neurootologically suspect acoustic neuroma. Whereas CT as a morphological method of investigation provides better preoperative information, CMS is likely to be superior to CT as a functional investigation technique in relapse diagnosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00339857
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