Visualization of intervertebral disc degeneration in a cadaveric human lumbar spine using microcomputed tomography.

Gross features of disc degeneration (DD) that are associated with back pain include tears in the anulus fibrosus, structural changes of the endplates, and a collapse of the anulus. The aim of this study is the detailed visualization and microstructural characterization of DD using microcomputed tomography (μCT) and a dedicated image post-processing pipeline. In detail, we investigate a cadaveric spine that shows both types of DD between L1 and L2 and between L2 and L3, respectively.

Clinical impact of hypogastric artery occlusion in endovascular aneurysm repair.

Purpose: To report the long-term results for patients treated with endovascular aneurysm repair and additional embolization and coverage of the hypogastric artery compared with patients treated with simple endovascular aneurysm repair.

Methods: A database of our endovascular aneurysm repair patient cohort was reviewed to find patients with iliac artery aneurysms. The baseline characteristics, the procedural data and the results for patients treated with endovascular aneurysm repair and concomitant hypogastric artery embolization were compared with those for patients treated with simple endovascular aneurysm repair.

Looking for a Learning Curve in EVAR Based on the Zenith Stent Graft.

The purpose of this study was to report the learning curve of endovascular aneurysm repair (EVAR) based on the Zenith stent graft (Cook Medical Inc., Bloomington, IN). In the last 9 years, 101 patients were treated with a Zenith stent graft.

Experience and outcomes after a decade of endovascular abdominal aortic aneurysm repair: a retrospective study from a community-based single center.

Background: The purpose of this study is to report the results of endovascular abdominal aortic aneurysm treatment based on the Zenith stent-graft from a community-based single center over a period of 9 years.

Methods: We retrospectively analyzed immediate technical and clinical results as well as long-term outcomes in patients treated with endovascular aneurysm repair between 2001 and 2010. The study was performed in accordance with the recommendations of the ad hoc committee for standardized reporting practice in vascular surgery.

[Sirolimus-eluting stents for the treatment of symptomatic extracranial vertebral artery stenoses: early experience and 6-month follow-up].

Purpose: To evaluate the clinical and morphological effectiveness of sirolimus-eluting stents in patients with stenoses in the extracranial vertebral artery and to assess the 6-month results.

Materials And Methods: Sirolimus-eluting stents were implanted in 8 stenoses of the extracranial vertebral artery in 7 patients with symptoms of vertebrobasilar insufficiency. Seven stenoses were located at the ostium, and one further cranially in segment V 1.

Treatment of complex arteriosclerotic lesions with nitinol stents in the superficial femoral and popliteal arteries: a midterm follow-up.

Purpose: To evaluate the effectiveness of nitinol stents in patients with short, complex lesions in the superficial femoral and popliteal arteries and to assess midterm results.

Materials And Methods: Self-expandable nitinol stents were implanted in 54 extremities in 44 patients to treat complex stenoses (n = 32) and occlusions (n = 22) in the superficial femoral and popliteal arteries. Follow-up was performed for 5-51 months to evaluate early thrombosis and midterm patency rates.

[Variants of ossification of the stylohyoid chain].

Purpose: Evaluation of age-related differences in the incidence, length and topographic location of ossifications in the stylohyoid chain.

Method: Panoramic radiographs of 380 patients (718 reviewed stylohyoid chains), subdivided into 4 age groups (up to 20 years, 21 to 40 years, 41 to 60 years, older than 60 years), were reviewed and examined for the incidence, length and topographic location of stylohyoidal ossification.

Results: 221 (30.

The incidence, location, and height of maxillary sinus septa in the edentulous and dentate maxilla.

Purpose: This study evaluated the incidence, location, and height of antral septa and demonstrates their clinical implications.

Materials And Methods: One hundred ninety-four maxillary posterior regions, subdivided into four groups (group 1, 61 clinically examined atrophic ridges; group 2, 41 anatomically examined atrophic ridges; group 3, 42 radiographically [CT] examined atrophic ridges; and group 4, 50 CT examined dentate maxillary ridges), were examined for the incidence, location, and height of antral septa.

Results: The incidence of antral septa was significantly greater (P<.

[Treatment of longitudinal femoropopliteal vascular lesions with stents--report of individual cases].

Purpose: In a retrospective analysis the results of stent implantation in the superficial femoral and popliteal arteries were analysed. The stenoses were all larger than 10 cm in length.

Patients And Methods: In 16 patients (3 women, 13 men, mean age 74 years) 15 occlusions and 2 stenoses (average lesion length 13.

[Ossification of the stylohyoid chain in computerized tomography--Eagle syndrome].

The computed tomographic morphology of a typical Eagle syndrome is presented on the basis of a case history. In a 40-year old male patient [correction of female] presenting with bilateral tinnitus, globus hystericus, and increasing hoarseness computed tomography revealed bilateral ossification of the stylohyoid ligament. The incidence of stylalgia is very low in comparison to the occurrence of a elongated styloid process or an ossified stylohyoid ligament.

Maxillary sinus septa: incidence, morphology and clinical implications.

This study was carried out to examine the incidence, morphology and clinical implication of antral septa. Out of 265 maxillary sinuses, 65 sinuses in atrophic maxillae were examined clinically during sinus floor elevation and 200 sinuses examined radiographically (CT), the latter being further subdivided into non-atrophic/dentate and atrophic/edentulous maxillary segments. Eighteen (27.

[Self-expanding permanent endoluminal stents in the ureter. 5 years results and critical evaluation].

The use of self-expanding permanent endoluminal stents (SPES) in the upper urinary tract proved to be a useful alternative to double-J splints and percutaneous nephrostomy in malignant extrinsic ureteral obstruction. Between April 1990 and August 1995, 65 ureteral obstructions (58 malignant and 7 benign strictures) were treated by implantation of a SPES. The devices used were the Wallstent (Schneider, Zürich, Switzerland; 62 times) with diameter of 7 mm and length of 3-10 cm and the Memotherm stent (Angiomed, Karlsruhe, Germany; 3 times), diameter 8 mm, length 5 cm.

[The morphology and incidence of maxillary sinus septa].

Aim: The variations and frequency of bony septa in the paranasal sinuses were studied prospectively by means of computed tomography.

Patients And Methods: The presence and morphology of the septa in the paranasal sinuses were studied in 100 consecutive non-selected adults.

Results: CT examinations of 200 maxillary antra showed variations in 26 (13%).

Wallstents for the treatment of extrinsic malignant ureteral obstruction: midterm results.

Purpose: To test the clinical efficacy of metal stents in the treatment of malignant ureteral obstruction and to maximize the effectiveness of the method.

Materials And Methods: Fifty-four malignant stenoses of the ureter were treated in 40 patients by implantation of a self-expandable permanent endoluminal stent (SPES).

Results: The mean follow-up time was 10.

[Wall stents for treatment of malignant ureteral obstruction].

Self-expanding metallic stents (Wallstents) were implanted in 44 ureters in 31 patients suffering from malignant ureteral obstruction. The causes of obstruction were lymph node metastases or primary tumors of the pelvis. During the first 4 weeks, reversible thickening of the mucosa occurred.

[The postoperative x-ray morphology of the maxillary sinuses in the conventional x-ray of the paranasal sinuses].

This paper presents the postoperative x-ray morphology and clinical findings of surgically cleared maxillary sinuses. 64 patients who had undergone osteoplastic surgery as well as 48 patients subjected to conventional classical Caldwell-Luc surgery could be followed up. Those patients on whom osteoplastic maxillary surgery had been performed, had significantly fewer postoperative complaints than patients subjected to osteoplastic surgery (p < 0.

[The radiologic manifestations of a MALT-lymphoma of the colon].

Malt-Lymphoma is a malignant polyposis with its origin in the lymphatic cells of the digestive tract. We report on a 69-year-old female suffering from severe lymphoid polyposis in the colon. There was no evidence of malignant lymphoma in other organs such as liver, spleen retroperitoneum, and lymph nodes.