Pulmonary Angiography: Arteriovenous Malformation and Pseudoaneurysm

IR Playbook ◽  
2018 ◽  
pp. 247-257
Author(s):  
Jeffrey S. Pollak
Keyword(s):  
Arteriovenous Malformation ◽  
Pulmonary Angiography

scholarly journals Pulmonary arteriovenous malformation (PAVM) embolization: prediction of angiographically-confirmed recanalization according to PAVM Diameter changes on CT

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Jihoon Hong ◽  
Sang Yub Lee ◽  
Jung Guen Cha ◽  
Jae-Kwang Lim ◽  
Jongmin Park ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Case Series ◽  
Pulmonary Angiography ◽  
Endovascular Embolization ◽  
Pulmonary Arteriovenous Malformation ◽  
Conventional Angiography ◽  
Receiver Operating Characteristic Curves ◽  
Vein Diameter ◽  
Diameter Reduction

Abstract Background To assess pulmonary arteriovenous malformation (PAVM) recanalization after embolization based on PAVM diameter changes on computed tomography (CT), with pulmonary angiography used as a gold standard. Methods A retrospective review was done of patients from 2008 to 2019 with a PAVM treated with endovascular embolization. The treatment outcome was determined by conventional angiography. Follow-up pulmonary angiography was performed when recanalization was suspected on CT, or embolization of all lesions in multiple PAVM patients could not be completed in a single session. Patients who had no preprocedural or follow-up CT were excluded. Draining vein, feeding artery, and venous sac diameter were measured on CT, and diameter reduction rates were compared with the widely-used, binary 70 % criteria. Results Forty-one patients with 114 PAVMs were treated during the study period. Eight patients with 50 PAVMs met the inclusion criteria. Mean vein, artery, and venous sac diameter reduction rates were as follows: 59.2 ± 9.3 %, 47.5 ± 10.6 %, and 62.6 ± 13.2 %, respectively, in the occluded group and 5.4 ± 19.5 %, 11.3 ± 17.7 %, and 26.8 ± 14.2 %, respectively, in the recanalized group. The area under the receiver operating characteristic curves for PAVM recanalization for the draining vein was 1.00, showing a better result than the artery (0.97) and sac (0.99). Patients showed > 42 % draining vein diameter reduction in the occluded group and < 32 % in the recanalized group. The widely-used 70 % criteria showed low specificity for predicting recanalization (draining vein, 7.3 %; venous sac, 41.7 %) but 100 % sensitivity for both the draining vein and venous sac. Conclusions The widely-used 70 % binary criteria showed limited performance in predicting outcomes in this angiographically-confirmed case series. Further investigations are warranted to establish a strategy for detecting recanalization after PAVM embolization.

Pitfalls in the diagnosis of pulmonary arteriovenous malformations

1994 ◽  
Vol 4 (4) ◽  
pp. 408-410
Author(s):  
Michael Schiemmer ◽  
Gerald Tulzer ◽  
Maria Wimmer
Keyword(s):  
Arteriovenous Malformation ◽  
Arteriovenous Malformations ◽  
Arterial Oxygen Saturation ◽  
Pulmonary Angiography ◽  
Arterial Oxygen ◽  
Upper Respiratory Tract ◽  
Upper Respiratory ◽  
The Right ◽  
Enhanced Computed Tomography ◽  
Diagnostic Pitfalls

SummaryA homogeneous opacity of the right upper lobe was found radiographically in a 15-month-old male child during investigation of an upper respiratory tract infection. Based on computerized tomography, the diagnosis was made of a solid tumor of the lung. At thoracotomy, dilated serpentine vessels were found on the surface of the right upper lobe, and the diagnosis of a large arteriovenous malformation was considered. Use of enhanced computed tomography without contrast and failure to note a reduced arterial oxygen saturation were two diagnostic pitfalls. The diagnosis of an arteriovenous malformation was confirmed by pulmonary angiography, and a right upper lobectomy was successfully performed.

scholarly journals Pulmonary arteriovenous fistula diagnosed by contrast echocardiography: a case report of a daughter and a mother

2020 ◽  
Author(s):  
Gaoyun Pan ◽  
Xinxin Dong ◽  
Jianguo Xu
Keyword(s):  
Arteriovenous Malformation ◽  
Arteriovenous Fistula ◽  
Contrast Echocardiography ◽  
Left Lung ◽  
Pulmonary Angiography ◽  
Screening Tests ◽  
Pulmonary Arteriovenous Fistula ◽  
Severe Condition ◽  
Heart Cycle ◽  
The Right

Abstract Background Pulmonary arteriovenous fistula is a rare disease with a direct connection between the pulmonary artery and the vein, and in most cases is congenital. In a proportion of patients, it can cause hypoxemia, cyanosis and dyspnea. The golden standard for the diagnosis of PAVF is pulmonary angiography. We experienced two cases of a daughter and a mother with PAVF diagnosed by contrast echocardiography, which is simple and sensitive for the detection of pulmonary arteriovenous fistula. Case presentation Case 1:A 22-year-old female was admitted to hospital because of "unconsciousness for 3 hours after sudden seizures".CT showed left frontal cerebral arteriovenous malformation with hemorrhage, a nodule of upper lobe of left lung, arteriovenous malformation possible.Intracranial hematoma removal, arteriovenous malformation resection were performed urgently. Postoperatively, the patient presented severe hypoxemia. Contrast echocardiography showed continuous dense bubbles were visualized in the left heart from the third heart cycle following imaging in the right heart, , suggesting pulmonary arteriovenous fistula. Case 2 : The mother of the first patient, 44-year-old female, with no history of dyspnea, cyanosis,and stroke, was medically screened for suspected pulmonary arteriovenous fistula due to her daughter’s disease. Contrast echocardiography also indicated pulmonary arteriovenous fistula. Conclusions Contrast echocardiography is an excellent tool for the detection of pulmonary arteriovenous fistula. Patients with suspected pulmonary arteriovenous fistula should be examined by chest radiography combined with contrast echocardiography as first line screening tests, especially in patients with severe condition.

scholarly journals Idiopathic Pulmonary Arteriovenous Malformation - A Rare Entity

2021 ◽  
Vol 10 (41) ◽  
pp. 3604-3606
Author(s):  
Sanyukta Hepat ◽  
Ruchita Kabra ◽  
Abhijit Wadekar ◽  
Sourya Acharya ◽  
Samarth Shukla ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Pulmonary Veins ◽  
Pulmonary Arteries ◽  
Surgical Excision ◽  
Transcatheter Embolization ◽  
Pulmonary Angiography ◽  
Pulmonary Arteriovenous Malformation ◽  
Diagnostic Tools ◽  
Delay Of Treatment ◽  
The Right

Pulmonary arteriovenous malformation (PAVM) is one of the rare pulmonary vascular anomalies. Pulmonary arteriovenous malformation results in right to left shunt due to the abnormal communications between the pulmonary arteries and the pulmonary veins bypassing the normal capillary bed.1 This condition being rare could be easily missed, hence, it is essential for clinicians to suspect it based on the classical clinical features. This helps in early diagnosis and deciding further appropriate treatment option. Here we report the case of a patient affected by a large idiopathic pulmonary arteriovenous malformation in the right lung. Most patients with pulmonary arteriovenous malformation are asymptomatic. This is due to the chronic compensation and secondary erythrocytic response. Dyspnoea due to PAVMs are a result of right-to-left shunt. Initial diagnostic tools include chest radiography and contrast enhanced computed tomography but the gold standard is pulmonary angiography.2 Because AVM has substantial morbidity rates associated with it, all patients with PAVMs who can undergo embolization should be treated with transcatheter embolization. In rest of the patients, surgical excision should be considered. The main objective of this study was to highlight the early suspicion and diagnosis of pulmonary arteriovenous malformation as this is easily missed and leads to undue delay of treatment.

Abstract #494 Intense Headache in a 51-Year-Old Woman Referred as Complicated Arteriovenous Malformation

2019 ◽  
Vol 25 ◽  
pp. 243-244
Author(s):  
Jose Paz-Ibarra ◽  
Natalia Awramiszyn ◽  
Maria Trujillo
Keyword(s):  
Arteriovenous Malformation

Benign intracranial hypertension associated with arteriovenous malformation

2002 ◽  
Vol 44 (02) ◽  
pp. 133 ◽  
Author(s):  
E B A Vorstman ◽  
D B Niemann ◽  
A J Molyneux ◽  
M G Pike
Keyword(s):  
Arteriovenous Malformation ◽  
Intracranial Hypertension ◽  
Benign Intracranial Hypertension

State-of-the-art pulmonary arterial imaging – Part 1

VASA ◽  
2018 ◽  
Vol 47 (5) ◽  
pp. 345-359 ◽  
Author(s):  
Yuki Tanabe ◽  
Luis Landeras ◽  
Abed Ghandour ◽  
Sasan Partovi ◽  
Prabhakar Rajiah
Keyword(s):  
State Of The Art ◽  
Pulmonary Arteries ◽  
Pulmonary Angiography ◽  
Imaging Modalities ◽  
Nuclear Medicine Imaging ◽  
Multiple State ◽  
Pulmonary Arterial ◽  
Magnetic Resonance Imaging Mri ◽  
Acquired Abnormalities ◽  
Arterial Imaging

Abstract. The pulmonary arteries are affected by a variety of congenital and acquired abnormalities. Multiple state-of-the art imaging modalities are available to evaluate these pulmonary arterial abnormalities, including computed tomography (CT), magnetic resonance imaging (MRI), echocardiography, nuclear medicine imaging and catheter pulmonary angiography. In part one of this two-part series on state-of-the art pulmonary arterial imaging, we review these imaging modalities, focusing particularly on CT and MRI. We also review the utility of these imaging modalities in the evaluation of pulmonary thromboembolism.

Surgical Management of Arteriovenous Malformation in the Foot: A Case Study

2021 ◽  
Vol 60 (1) ◽  
pp. 146-151
Author(s):  
Elizabeth M. Bonarigo ◽  
Raymond G. Cavaliere
Keyword(s):  
Arteriovenous Malformation ◽  
Surgical Management
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