1.Invasive Aspergillosis of the Abdominal Aorta with Multiple Peripheral Embolic Lesions.
Jae Hwan LEE ; Ji Hye HAN ; Jae Hyeong PARK ; Ik Chan SONG
Korean Circulation Journal 2017;47(3):422-423
No abstract available.
Aorta, Abdominal*
;
Aspergillosis*
2.Spot Diagnosis Using Pulse Wave Doppler Interrogation of the Abdominal Aorta.
Karima ADDETIA ; Judith THERRIEN
Journal of Cardiovascular Ultrasound 2012;20(2):112-113
No abstract available.
Aorta, Abdominal
;
Echocardiography
3.Mycotic aneurysm of the abdominal aorta: a case report-
Keun Kon KOH ; Jin Sub CHOI ; Kyung Po LEE ; Yu Seun KIM ; Kil PARK
Journal of the Korean Society for Vascular Surgery 1992;8(1):70-75
No abstract available.
Aneurysm, Infected
;
Aorta, Abdominal
4.Penetrating Atherosclerotic Ulcers of the Abdominal Aorta: A Case Report and Review of the Literature
Thomas KOTSIS ; Basileios Georgiou SPYROPOULOS ; Nikolaos ASALOUMIDIS ; Panagitsa CHRISTOFOROU ; Konstantina KATSENI ; Ioannis PAPACONSTANTINOU
Vascular Specialist International 2019;35(3):152-159
Penetrating atherosclerotic ulcers (PAUs) of the aorta are defined as atherosclerotic lesions with aortic intima and media ulceration, which may lead to a complete rupture of the adventitial wall. The present article aimed to report an unusual case of a surgically treated patient with abdominal aorta PAU with an illustration of the key features and to review and analyze the existing literature data. PAUs typically develop in elderly and hypertensive patients and in patients with advanced atherosclerosis. Although originally described for the descending thoracic aorta, a similar clinicopathological entity also occurs in the abdominal aorta. Patients with symptoms of a PAU should be treated immediately if they are fit for surgery. Exceptive observation by imaging modalities is necessary in patients with asymptomatic small (<2 cm) PAU, with or without focal dissection.
Aged
;
Aorta
;
Aorta, Abdominal
;
Aorta, Thoracic
;
Atherosclerosis
;
Humans
;
Rupture
;
Ulcer
5.The Influence of Stent Design on Neointimal Hyperplasia of an Aortic Stent Covering the Visceral Arterial Ostia: An Experimental Study in Dogs Using a Self-expandable Nitinol Stent.
Yonghu YIN ; Jin Wook CHUNG ; Seung Hong CHOI ; Kwang Gi KIM ; Hyo Cheol KIM ; Young Ho SO ; Hwan Jun JAE ; Whal LEE ; Jae Hyung PARK
Journal of the Korean Radiological Society 2008;58(5):469-474
PURPOSE: To assess the influence of stent design [interlacing (type A) vs. crossing method (type B)] on neointimal hyperplasia using a self-expandable nitinol stent, which crosses the side branches of the abdominal aorta. MATERIALS AND METHODS: In seven mongrel dogs, nitinol stents with type A and B intersections were placed in the abdominal aorta across the main branches: 4 Niti-Ms and 3 Niti-Ds. Two months after the stent placement, a DSA was performed for a stent patency evaluation, followed by the extraction of the aortas. The degree of neointimal formation along the wire was evaluated by calculating the area ratio of intimal hyperplasia (type A vs. B). A Student's t-test was employed to investigate the differences in the neointimal hyperplasia between blood types A and B. RESULTS: The total number of wire intersections overlain at the ostia branch ostia was 23 for type A and 36 for type B. The area ratio of the neointimal hyperplasia, for a given area, was 29.09+/-10.82% (type A) and 13.80+/-6.94% (type B) (p < 0.0001)]. Furthermore, the area ratios of the neointimal hyperplasia per area of stent-wire in the given area were 138.38+/-10.84% (type A), 87.58+/-7.36% (type B) (p = 0.0002). CONCLUSION: In conclusion the interlacing pattern vs. the crossing pattern showed a higher level of neointimal formation than the crossing pattern.
Alloys
;
Animals
;
Aorta
;
Aorta, Abdominal
;
Dogs
;
Hyperplasia
;
Stents
6.Total Occlusion of the Abdominal Aorta Caused by Detachment of Cardiac Myxoma.
Sungyong HONG ; Kyung Taek PARK ; Hyunmin CHOE
The Korean Journal of Thoracic and Cardiovascular Surgery 2012;45(3):183-185
Abdominal aortic occlusion (AAO) caused by detachment of cardiac myxoma (CM) is a very rare complication in patients with CM. Although the nature of CMs has been well established, detachment of CM may cause unexpected serious complications such as vicious embolic events. Actually, in several cases of AAO caused by detachment of CM, it has been reported that CM fragments easily migrated to the brain, heart, and lungs, and caused lifelong neurological complications despite appropriate surgical therapy. Herein, we report a case of a patient with AAO caused by detachment of CM who underwent CM excision and abdominal aortic thromboembolectomy. Additionally, we have presented the preoperative and postoperative images using 64-multidetector computed tomography.
Aorta, Abdominal
;
Brain
;
Heart
;
Humans
;
Lung
;
Myxoma
7.Contrast Enhanced MR Angiography after Metallic Stent Placement: Experimental Study.
Dal Mo YANG ; Sung Kwon KANG ; Hyung Jin KIM ; Chang Hae SUH ; Myung Kwan LIM ; Kyung Hee LEE
Journal of the Korean Radiological Society 2000;42(3):453-458
PURPOSE: The purpose of this study was to evaluate the efficacy of contrast-enhanced MR angiography for follow-up examinations after metallic stent placement and to examine the effects of change of imaging parameters used for contrast-enhanced MR angiography. MATERIALS AND METHODS: After four metallic stents (Passager, Ninitol, Wallstent, and Memotherm) were placed in an abdominal aorta shaped vascular phantom, efGRE (enhanced fast gradient recalled echo) 3-D MR angiography was performed, using a 1.5T unit. The four metallic stents were graded 1-3 according to the width and length of their high signal intensity. Variations in the degree of high signal intensity were evaluated according to imaging parameters. RESULTS: The width and length of high signal intensity with the Passager stent and Nitinol stent were greater than with the Wallstent and Memotherm. The larger the field of view, the smaller the matrix number, the larger the flip angle, the greater the width and length of high signal intensity in the metallic stent. CONCLUSION: Contrast-enhanced MR angiography may be a useful follow-up procedure after the placement of Passager and Ninitol metallic stents. The signal intensity of stent lumen varies according to imaging parameters, and the selection of optimal parameters is therefore important.
Angiography*
;
Aorta, Abdominal
;
Follow-Up Studies
;
Stents*
8.Does the Access Angle Change the Risk of Approach-Related Complications in Minimally Invasive Lateral Lumbar Interbody Fusion? An MRI Study
Chunneng HUANG ; Zhengkuan XU ; Fangcai LI ; Qixin CHEN
Journal of Korean Neurosurgical Society 2018;61(6):707-715
OBJECTIVE: To investigate the potential risk of approach-related complications at different access angles in minimally invasive lateral lumbar interbody fusion.METHODS: Eighty-six axial magnetic resonance images were obtained to analyze the risk of approach-related complications. The access corridor were simulated at different access angles and the potential risk of neurovascular structure injury was evaluated when the access corridor touching or overlapping the corresponding structures at each angle. Furthermore, the safe corridor length was measured when the corridor width was 18 and 22 mm.RESULTS: When access angle was 0°, the potential risk of ipsilateral nerve roots injury was 54.7% at L4–L5. When access angle was 45°, the potential risk of abdominal aorta, contralateral nerve roots or central canal injury at L4–L5 was 79.1%, 74.4%, and 30.2%, respectively. The length of the 18 mm-wide access corridor was largest at 0° and it could reach 44.5 mm at L3–L4 and 46.4 mm at L4–L5. While the length of the 22 mm-wide access corridor was 42.3 mm at L3–L4 and 44.1 mm at L4–L5 at 0°.CONCLUSION: Changes in the access angle would not only affect the ipsilateral neurovascular structures, but also might adversely influence the contralateral neural elements. It should be also noted to surgeons that alteration of the access angle changed the corridor length.
Aorta, Abdominal
;
Magnetic Resonance Imaging
;
Surgeons