• Korean Journal of Radiology
• /
• 제23권2호
• /
• pp.246-255
• /
• 2022

Objective: To determine the usefulness of Silent MR angiography (MRA) for evaluating intracranial aneurysms treated with stent-assisted coil embolization. Materials and Methods: Ninety-nine patients (101 aneurysms) treated with stent-assisted coil embolization (Neuroform atlas, 71 cases; Enterprise, 17; LVIS Jr, 9; and Solitaire AB, 4 cases) underwent time-of-flight (TOF) MRA and Silent MRA in the same session using a 3T MRI system within 24 hours of embolization. Two radiologists independently interpreted both MRA images retrospectively and rated the image quality using a 5-point Likert scale. The image quality and diagnostic accuracy of the two modalities in the detection of aneurysm occlusion were further compared based on the stent design and the site of aneurysm. Results: The average image quality scores of the Silent MRA and TOF MRA were 4.38 ± 0.83 and 2.78 ± 1.04, respectively (p < 0.001), with an almost perfect interobserver agreement. Silent MRA had a significantly higher image quality score than TOF MRA at the distal internal carotid artery (n = 57, 4.25 ± 0.91 vs. 3.05 ± 1.16, p < 0.001), middle cerebral artery (n = 21, 4.57 ± 0.75 vs. 2.19 ± 0.68, p < 0.001), anterior cerebral artery (n = 13, 4.54 ± 0.66 vs. 2.46 ± 0.66, p < 0.001), and posterior circulation artery (n = 10, 4.50 ± 0.71 vs. 2.90 ± 0.74, p = 0.013). Silent MRA had superior image quality score to TOF MRA in the stented arteries when using Neuroform atlas (4.66 ± 0.53 vs. 3.21 ± 0.84, p < 0.001), Enterprise (3.29 ± 1.59 vs. 1.59 ± 0.51, p = 0.003), LVIS Jr (4.33 ± 1.89 vs. 1.89 ± 0.78, p = 0.033), and Solitaire AB stents (4.00 ± 2.25 vs. 2.25 ± 0.96, p = 0.356). The interpretation of the status of aneurysm occlusion exhibited significantly higher sensitivity with Silent MRA than with TOF MRA when using the Neuroform Atlas stent (96.4% vs. 14.3%, respectively, p < 0.001) and LVIS Jr stent (100% vs. 20%, respectively, p = 0.046). Conclusion: Silent MRA can be useful to evaluate aneurysms treated with stent-assisted coil embolization, regardless of the aneurysm location and type of stent used.

• Journal of Korean Neurosurgical Society
• /
• 제67권3호
• /
• pp.345-353
• /
• 2024

Objective : Blood-blister aneurysms (BBAs) of the internal carotid artery (ICA) are challenging lesions with high morbidity and mortality rates. Although research on BBAs is well documented in different populations, the study of BBAs in the Tibetan population is extremely rare. This study aimed to evaluate the characteristics of BBAs and analyze the treatment modalities and long-term outcomes in the Tibetan population in comparison with the Han population. Methods : The characteristics of patients with BBAs of the ICA from January 2009 to January 2021 at our institution were reviewed. The features of aneurysms, treatment modalities, complications, and follow-up outcomes were retrospectively analyzed. Results : A total of 130 patients (41 Tibetan and 89 Han patients) with BBAs of the ICA who underwent treatment were enrolled. Compared with the Han group, the Tibetan group significantly demonstrated a high ratio of BBAs among ICAs (8.6%, 41/477 vs. 1.6%, 89/5563; p<0.05), a high ratio of vasospasm (34.1%, 14/41 vs. 6.7%, 6/89; p=0.001), a high risk of ischemic events (43.9%, 18/41 vs. 22.5%, 20/89; p<0.05), and a low ratio of good outcomes (modified Rankin scale, 0-2) at the 1-year follow-up (51.2%, 21/41 vs. 74.2%, 66/89; p<0.05). The multivariate regression model showed that ischemic events significantly contributed to the prediction of outcomes at 1 year. Further analysis revealed that microsurgery and vasospasm were associated with ischemic events. Conclusion : In comparison with Han patients, the Tibetan population had a high ratio of BBA occurrence, a high incidence of ischemic events, and a high ratio of poor outcomes. The endovascular approach showed more benefits in BBA patients.

• 대한영상의학회지
• /
• 제84권5호
• /
• pp.1191-1196
• /
• 2023

기관지 동맥류는 전 세계적으로 드문 질환으로 특히 한 개의 기관지 동맥에서 기인한 여러 개의 동맥류는 매우 드물다. 이는 병변의 크기에 상관없이 파열의 위험이 있고 대량 객혈과 심각한 통증을 유발할 수 있다. 저자들은 하나의 기관지 동맥에서 발생한 다발성 동맥류에 대해 성공적으로 색전한 증례를 보고하고자 한다. 64세 여성이 10년 전 건강검진에서 시행한 흉부 CT에서 다수의 기관지 동맥류와 우하폐의 기관지 병변이 발견되었다. 환자는 이에 대한 추가적 검사를 권유받았으나 거절 후 추적 소실되었다. 이후 호흡곤란을 주소로 내원 후 시행한 흉부 CT에서 기관지 동맥류의 크기가 증가한 소견을 보였고, 동맥류에 대해 분리코일, N-butyl-2-cyanoacrylate를 이용하여 성공적인 색전술을 시행하였다. 색전술이후 추적 흉부 CT에서 우하폐의 염증성 병변의 범위가 감소한 것이 확인하였다.

• Journal of Chest Surgery
• /
• 제13권3호
• /
• pp.262-268
• /
• 1980

Four cases of patients with abdominal aortic aneurysm were experienced in Severance Hospital from July of 1977 to May of 1980. Among them three cases were men who were aged over 60 years. Atherosclerosis was cause of aortic aneurysms. The remained cases were 50 years old woman had inflammatory aneurysm. Excision of the aneurysm and aortoiliac graft was placed successfully. Their postoperative courses were uneventful and they were discharged in good condition.

• Journal of Chest Surgery
• /
• 제14권1호
• /
• pp.63-66
• /
• 1981

True aneurysm of the carotid artery is relatively rare in comparison with the total number of aneurysms of the arterial system. The threat of rupture and embolization from mural thrombi are indications for treatment even though no symptoms may be present. Resection of the aneurysm and restoration of arterial continuity is the treatment of choice. A case of aneurysm of the Lt. common carotid artery of a 21 year-old male patient is presented. The confirmatory diagnosis was made by left carotid angiogram, and the aneurysmectomy & reconstruction with woven dacron vascular prosthesis was done, while cerebral circulation was maintained by internal shunt.

• Journal of Chest Surgery
• /
• 제28권3호
• /
• pp.258-262
• /
• 1995

We have experienced 18 abdominal aortic aneurysms between March,1987 and June,1994.Unruptured patients were 11 cases and ruptured were 7.The fifth[33.4% ,sixth[27.7% and seventh[27.7% decades were most common age distributions.Sex ratio was 2.6:1[m:f .The most frequent symptoms were abdominal or back pain and palpable pulsating mass.Sixteen patients underwent resection and graft replacement.One patient refused operation.Atherosclerosis was the underlying pathology in 76%.Two ruptured patients died postoperative[28.5% .The frequency of postoperative complication was higher in the ruptured group.

• 대한임상검사과학회지
• /
• 제47권1호
• /
• pp.24-27
• /
• 2015

To measure motor evoked potentials (MEP) during emergency surgery is often difficult in patients with subarachnoid hemorrhage (SAH) from a ruptured cerebral aneurysm, The cause of these difficulties may be considered as damage to the motor pathway by hemorrhage. To identify the cause of difficulties in measuring MEP, we defined the association between motor evoked potentials during surgery and the severity of the hemorrhage in patients with subarachnoid hemorrhage.

• Journal of Korean Neurosurgical Society
• /
• 제55권5호
• /
• pp.280-283
• /
• 2014

Reports of thrombosis and recanalization of cerebral aneurysm are rare. We report two cases of small, saccular aneurysms in which spontaneous thrombosis had occurred during the preparation for endovascular coiling. Also, we review reported cases and propose the presumed pathogenesis.

• Journal of Korean Neurosurgical Society
• /
• 제38권4호
• /
• pp.303-305
• /
• 2005

The incidence of intracranial aneurysms in childhood is rare, especially in infancy. We report a case of a 45-day-old girl who presented with seizure due to a ruptured large saccular aneurysm of the middle cerebral artery[MCA] with subsequent subarachnoid, intracerebral and intraventricular hemorrhage. The baby has enjoyed an excellent clinical outcome after surgical management. The clinical features of the case and review of the literature are presented.

• Journal of Korean Neurosurgical Society
• /
• 제53권6호
• /
• pp.371-373
• /
• 2013

Intracranial aneurysms in the neonate are very rare and their clinicopathological findings remain unclear. We report a 26-day-old premature neonate who underwent microsurgical clipping on the ruptured middle cerebral artery bifurcation aneurysm successfully with a review of relevant literature.