Endovascular Repair of Abdominal Aortic Aneurysms: Analysis of Aneurysm Volumetric Changes at Mid-Term Follow-Up

Bargellini, Irene; Cioni, Roberto; Petruzzi, P; Pratali, A.; Napoli, Vinicio; Vignali, C; Ferrari, Mauro; Bartolozzi, Carlo

doi:10.1007/s00270-004-0171-9

Cited by 49 publications

(41 citation statements)

References 43 publications

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“…Al contrario, un incremento dimensionale della sacca è associato ad un aumentato rischio di rottura e necessita pertanto di trattamento [14][15][16][17][18][19]. L'analisi volumetrica della sacca consente un più accurato monitoraggio degli aneurismi dell'aorta addominale (AAA) sottoposti ad EVAR rispetto alle comuni misurazioni lineari; diversi studi hanno infatti evidenziato come non sempre le variazioni del diametro massimo rappresentino correttamente le reali modifiche dimensionali dell'aneurisma [14,15,[20][21][22]. Il diametro infatti è l'espressione del cambiamento lineare dell'aneurisma, mentre la valutazione del volume della sacca esprime la variazione dimensionale in tutti i piani dello spazio [14].…”

Section: Discussioneunclassified

“…I nostri risultati possono essere spiegati dalla migliore qualità delle immagini, ottenute con tomografo a 64 strati, rispetto ai lavori precedenti che hanno utilizzato apparecchi meno performanti ( [14,15,[20][21][22]. Diameter is the expression of a linear change in only a single crosssection, whereas volume changes involve the aneurysm in all space dimensions [14].…”

Section: Discussioneunclassified

“…Dopo EVAR, gli aneurismi che rimangono stabili o diminuiscono di dimensioni presentano un ridotto rischio di rottura e non richiedono ulteriori interventi anche in presenza di piccoli endoleaks [14][15][16][17][18][19]. L'analisi volumetrica della sacca è una misura più accurata della variazioni dimensionali dell'aneurisma rispetto alle misure lineari comunemente utilizzate [14,15,[20][21][22].…”

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Volumetric analysis of the aneurysmal sac with computed tomography in the follow-up of abdominal aortic aneurysms after endovascular treatment

et al. 2011

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Volumetric analysis of the aneurysmal sac with computed tomography in the follow-up of abdominal aortic aneurysms after endovascular treatment

et al. 2011

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“…Traditionally, the preferred imaging method for surveillance of EVAR of AAA is CT angiography, which involves a series of maximal diameter measurements of the aneurysm at regular periods of follow-up, and determining whether the aneurysm is shrinking, enlarging, or remaining unchanged. This has been challenged by some studies which demonstrated the inaccuracy of diameter measurements [36][37][38] . Studies showed that volume measurement is superior to diameter measurement as it reflects all size changes of the aneurysm [37,38] .…”

Section: D Image Visualizationsmentioning

confidence: 95%

“…This has been challenged by some studies which demonstrated the inaccuracy of diameter measurements [36][37][38] . Studies showed that volume measurement is superior to diameter measurement as it reflects all size changes of the aneurysm [37,38] . Thus, accurate evaluation of the aneurysm and stent grafts relative to the aortic branches cannot be assessed based only on 2D axial images.…”

Section: D Image Visualizationsmentioning

confidence: 95%

Endovascular stent graft repair of abdominal aortic aneurysms: Current status and future directions

Sun¹

2009

WJR

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Endovascular stent graft repair of abdominal aortic aneurysm (AAA) has undergone rapid developments since it was introduced in the early 1990s. Two main types of aortic stent grafts have been developed and are currently being used in clinical practice to deal with patients with complicated or unsuitable aneurysm necks, namely, suprarenal and fenestrated stent grafts. Helical computed tomography angiography has been widely recognized as the method of choice for both pre-operative planning and post-operative followup of endovascular repair (EVAR). In addition to 2D axial images, a number of 2D and 3D reconstructions are generated to provide additional information about imaging of the stent grafts in relation to the aortic aneurysm diameter and extent, encroachment of stent wires to the renal artery ostium and position of the fenestrated vessel stents. The purpose of this article is to provide an overview of applications of EVAR of AAA and diagnostic applications of 2D and 3D image visualizations in the assessment of treatment outcomes of EVAR. Interference of stent wires with renal blood flow from the hemodynamic point of view will also be discussed, and future directions explored.

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Thoracic Aortic Volume as a Predictor of Cardiovascular Events: The Multi‐Ethnic Study of Atherosclerosis

Sanampudi,

Teixidó‐Turà,

Fujii

et al. 2023

Magnetic Resonance Imaging

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BackgroundIt is unclear whether thoracic aortic volume (TAV) is useful for cardiovascular (CV) disease prognosis and risk assessment.PurposeThis study evaluated cross‐sectional associations of TAV with CV risk factors, and longitudinal association with incident CV events in the multiethnic study of atherosclerosis.Study TypeRetrospective cohort analysis of prospective data.Population1182 participants (69 ± 9 years, 54% female, 37% Caucasian, 18% Chinese, 31% African American, 14% Hispanic, 60% hypertensive, and 20% diabetic) without prior CV disease.Field Strength and sequencesAxial black‐blood turbo spin echo or bright blood steady‐state free precession images on 1.5T scanners.AssessmentTAV was calculated using Simpson's method from axial images, and included the ascending arch and descending segments. Traditional CV risk factors were assessed at the time of MRI. CV outcomes over a 9‐year follow‐up period were recorded and represented a composite of stroke, stroke death, coronary heart disease (CHD), CHD death, atherosclerotic death, and CVD death.Statistical TestsMultivariable linear regression models adjusted for height and weight were used to determine the relationship (β coefficient) between TAV and CV risk factors. Cox regression models assessed the association of TAV and incident CV events. A P‐value of <0.05 was deemed statistically significant.ResultsMean TAV was = 139 ± 41 mL. In multivariable regression, TAV was directly associated with age (β = 1.6), male gender (β = 23.9), systolic blood pressure (β = 0.1), and hypertension medication use (β = 7.9); and inversely associated with lipid medication use (β = −5.3) and treated diabetes (β = −8.9). Compared to Caucasians, Chinese Americans had higher TAV (β = 11.4), while African Americans had lower TAV (β = −7.0). Higher TAV was independently associated with incident CV events (HR: 1.057 per 10 mL).ConclusionGreater TAV is associated with incident CV events, increased age, and hypertension in a large multiethnic population while treated diabetes and lipid medication use were associated with lower TAV.Level of Evidence2Technical EfficacyStage 2

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Endovascular Repair of Abdominal Aortic Aneurysms: Analysis of Aneurysm Volumetric Changes at Mid-Term Follow-Up

Abstract: The lack of volume decrease in the aneurysm of at least 0.3% at 6 months follow-up indicates the need for closer surveillance, and has a higher predictive accuracy for an endoleak than Dmax.

Cited by 49 publications

References 43 publications

Volumetric analysis of the aneurysmal sac with computed tomography in the follow-up of abdominal aortic aneurysms after endovascular treatment

Volumetric analysis of the aneurysmal sac with computed tomography in the follow-up of abdominal aortic aneurysms after endovascular treatment

Endovascular stent graft repair of abdominal aortic aneurysms: Current status and future directions

Thoracic Aortic Volume as a Predictor of Cardiovascular Events: The Multi‐Ethnic Study of Atherosclerosis

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