• Korean Journal of Radiology
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• 제23권8호
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• pp.794-802
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• 2022

Objective: To evaluate the feasibility of single-shot whole thoracic time-resolved MR angiography (TR-MRA) to identify the feeding arteries of pulmonary arteriovenous malformations (PAVMs) and reperfusion of the lesion after embolization in patients with multiple PAVMs. Materials and Methods: Nine patients (8 females and 1 male; age range, 23-65 years) with a total of 62 PAVMs who underwent percutaneous embolization for multiple PAVMs and were subsequently followed up using TR-MRA and CT obtained within 6 months from each other were retrospectively reviewed. All imaging analyses were performed by two independent readers blinded to clinical information. The visibility of the feeding arteries on maximum intensity projection (MIP) reconstruction and multiplanar reconstruction (MPR) TR-MRA images was evaluated by comparing them to CT as a reference. The accuracy of TR-MRA for diagnosing reperfusion of the PAVM after embolization was assessed in a subgroup with angiographic confirmation. The reliability between the readers in interpreting the TR-MRA results was analyzed using kappa (κ) statistics. Results: Feeding arteries were visible on the original MIP images of TR-MRA in 82.3% (51/62) and 85.5% (53/62) of readers 1 and 2, respectively. Using the MPR, the rates increased to 93.5% (58/62) and 95.2% (59/62), respectively (κ = 0.760 and 0.792, respectively). Factors for invisibility were the course of feeding arteries in the anteroposterior plane, proximity to large enhancing vessels, adjacency to the chest wall, pulsation of the heart, and small feeding arteries. Thirty-seven PAVMs in five patients had angiographic confirmation of reperfusion status after embolization (32 occlusions and 5 reperfusions). TR-MRA showed 100% (5/5) sensitivity and 100% (32/32, including three cases in which the feeding arteries were not visible on TR-MRA) specificity for both readers. Conclusion: Single-shot whole thoracic TR-MRA with MPR showed good visibility of the feeding arteries of PAVMs and high accuracy in diagnosing reperfusion after embolization. Single-shot whole thoracic TR-MRA may be a feasible method for the follow-up of patients with multiple PAVMs.

• 대한핵의학회지
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• 제13권1_2호
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• pp.7-14
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• 1979

Radionuclide cardiac angiography has distinct advantages in safety, patient comfort, cost and ease of performance. This method offers diagnostic accuracy equivalent to that of cardiac catheterization. By this method the qualitative and quantitative diagnosis of the cardiac shunts are available. Also for it is repeatable with ease and more physiologic, it has application in following pre- and post-operative shunt patients. We performed the radionuclide cardiac angiographies in 147 cases of heart diseases and 26 cases of normal group. 1. The detection of left-to-right shunt was possible in 22 of 24 patients, and 2 patients were not diagnosed due to small shunt amount. (Qp/Qs<1.3) In 21 patients of right-to-left shunt, all were diagnosed by radionuclide cardiac angiography. 2. With the pulmonary time-activity curve, $C_2/C_1$ ratio was calculated. In normal control group, a range of $C_2/C_1$ ratios of $21{\sim}38%$ was established with a mean value of $28.6{\pm}4.6%$. In patients with left-to-right shunts determined by catheterization data, the range of $C_2/C_1$ ratio was $33{\sim}90%$, with a mean value of $67.8{\pm}12.2%$. 3. In 8 cases of left-to-right shunt, $Q_p/Q_s$ ratios determined by radionuclide cardiac angiography were compaired with those of cardiac catheterization. The correlation coefficient was 0.907. (P<0.001) 4. Postoperative radionuclide cardiac angiographies were done in 21 cases. 3 of 13 patients with left-to-right shunts were found to have residual shunts. 8 patients with right-to-left shunts were confirmed to have no residual shunt.

• Tuberculosis and Respiratory Diseases
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• 제71권2호
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• pp.126-133
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• 2011

Unilateral pulmonary artery hypoplasia (UPAH) is a rare disease in adults and is frequently accompanied by a congenital cardiac anomaly at a young age. The diagnosis is usually based on computed tomography (CT), angiography, and magnetic resonance imaging (MRI). However, no reports are available on retrograde flow in patients with UPAH. We describe a 68-year-old man with isolated UPAH and retrograde blood flow. He was admitted for dyspnea on exertion for the past 23 years. His diagnosis was delayed, as his symptoms and signs mimicked his underlying pulmonary diseases, such as emphysema and previous tuberculous pleurisy sequelae. A discrepancy was detected between the results of a ventilation-perfusion scan and the CT image. This was resolved by MRI, which showed retrograde blood flow from the right to the left pulmonary artery. Using MRI, we diagnosed this patient with isolated pulmonary artery hypoplasia and retrograde flow.

• Journal of Chest Surgery
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• 제13권4호
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• pp.448-454
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• 1980

The juxtaposition of atrial appendage may possibly be diagnosed by angiography recently, and it is widely regarded as an ominous sign of severe cyanotic congenital heart disease. However, it is apparently rare congenital cardiac anomaly in which the atrial appendages lie side by side, both to the left or right of the great arteries, known as left or right juxtaposition of the atrial appendages. Juxtaposition of the atrial appendages has no functional significance, since it does not, itself, cause any hemodynamic disturbance. But it`s presence always indicates the coexistence of other major cardiac anomalies. In review of literatures TGA and VSD are invariable present, and ASD is common. Other anomalies, such as, tricuspid atresia, pulmonary outflow that, obstruction bicuspid pulmonic valve, persistent SVC etc. are relatively high incidence. In this report, we present one case of 6 year old female child having left juxtaposition of atrial appendage combined with TGA [D-looping, D-transposition], TAPVD, large ASD, small VSD, and vertical vein.

• 한국임상수의학회지
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• 제5권2호
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• pp.111-118
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• 1988

One four-month-old female shepherd mongrel dog with chief complaints of abdominal distension and dysponea was referred. The authors performed physical examination, hematological examination, X-ray examination, exploratory laparotomy, electrocardiography and angiography as antemortem investigation in addition to postmortem examination. This patient revealed complicated congenital cardiac anormaly including patent ductus arteriosus, both atrial and ventricular hypertrophy, distension in the base of the pulmonary artery, pulmonary stenosis, aortic insufficiency, patent foramen ovate and coronary arteriovenous fistula.

• Tuberculosis and Respiratory Diseases
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• 제38권1호
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• pp.83-87
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• 1991

Pulmonary sequestration is an uncommon comgenital disorder and any specific finding has not been reported in chest P-A for diagnosis. We experienced a case of pulmonary sequestraion with visible feeding vessel in chest PA which was well matched with aortic angiography. This finding may provide the clue for the diagnosis.

• Journal of Chest Surgery
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• 제32권3호
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• pp.303-306
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• 1999

본 증례는 Ross 술식에서 동종판막이나 이종판막을 쓰지않고 자가 대동맥 조직과 심낭으로 우심실 유출로를 성공적으로 재건한 보고이다. 선천성 대동맥판막 협착증을 진단 받은 8세 환아에서 시행한 폐동맥 자가 이식편을 이용하여 대동맥판을 교체하고 자가 대동맥 조직과 심낭편으로 단엽 판막을 만들어 우심실 유출로를 재건하였다. 술후 검사에서 심실과 새로운 대동맥판의 기능이 좋아 투약없이 19개월째 외래 추적관찰 중이다.

• Tuberculosis and Respiratory Diseases
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• 제57권5호
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• pp.489-493
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• 2004

일측성 폐동맥 형성부전증은 매우 드문 선천성 기형으로서 대부분 팔로사징, 심실중격결손등과 같은 선천성 심기형을 동반하며 선천성 심기형이 동반되지 않은 고립성 편측 폐동맥 형성부전증은 극히 드물다. 이러한 환자들의 경우 성인이 될때까지 무증상으로 지내는 경우가 많으며 흉부 방사선 검사상 병변측 폐의 폐음영은 과투과되어 나타나며 흉곽은 작아진 소견으로부터 고립성 편측 폐동맥 형성부전증을 의심하게 된다. 저자들은 경미한 운동시 호흡곤란을 증상으로 내원한 50세 여환에서 흉부 전산화 단층촬영 및 환기-관류 스캔과 심초음파검사를 시행하고, 삼차원 재구성 전산화 심혈관 단층촬영을 이용하여 고립성 우측 폐동맥 형성부전증을 진단하고 치료한 1례를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

• Tuberculosis and Respiratory Diseases
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• 제39권1호
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• pp.95-101
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• 1992

저자들은 최근 심한 늑막액이 반복되는 환자에서 재발성 일측성 폐정맥 폐쇄증을 진단후 추적관찰하였기에 문헌고찰과 함께 보고하였다.

• Journal of Chest Surgery
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• 제40권1호
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• pp.74-78
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• 2007

체동맥-폐혈관루(systemic artery to pulmonary vessel fistula, SAPVF)는 비정상적으로 형성된 체동맥과 폐혈관 사이의 연결이다. 이는 대부분 선천적으로 발생하지만, 드물게는 폐나 흉막의 종양, 염증성 질환 및 외상 등으로 인해 발생할 수 있다. 내원 16년 전 교통사고로 인한 횡경막 파열로 수술한 과거력이 있는 38세 남자 환자가 객혈을 주소로 내원하였고, 흉부 컴퓨터 단층 촬영과 혈관 조영술로 늑간동맥 및 내흉 동맥과 폐혈관이 연결된 SAPVF를 진단하였다. 저자들은 외상에 의한 SAPVF 1예를 경험하였고, 혈관 색전술을 시행하여 좋은 결과를 얻었기에 국내 문헌상으로는 최초로 이를 보고하는 바이다.