Use of cine magnetic resonance angiography in quantifying aneurysm pulsatility associated with endoleak

Faries, Peter L.; Agarwal, Gautam; Lookstein, R.; Bernheim, Joshua; Cayne, Neal S.; Cadot, Hadley; Goldman, Jeffery; Kent, K. Craig; Hollier, Larry H.; Marin, Michael L.

doi:10.1016/s0741-5214(03)00944-3

Cited by 27 publications

(26 citation statements)

References 23 publications

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“…Several authors have since examined the movement of aortic stentgrafts and the relationship to endoleak and/or stent-graft dislocation. [2][3][4][5][6] In this case, analysis of the dynamic CTA obtained 2 years after the EVAR procedure revealed an 11% change of the right iliac limb diameter during the cardiac cycle. Moreover, we observed that the aorta and the stent-graft moved 3 mm up and down with every heartbeat.…”

Section: Discussionmentioning

confidence: 69%

Recurrent Stent-Graft Disintegration Caused by Cardiac-Induced Aortoiliac Movements

Keulen¹,

Prehn²,

Moll³

et al. 2010

Journal of Endovascular Therapy

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We present a 68-year-old man with a 5.8-cm infrarenal abdominal aortic aneurysm who was treated 5 years ago by endovascular placement of a bifurcated Life-Path stent-graft (Edwards Lifesciences, Irvine, CA, USA; Fig- ure, A). Two years later, migration of the right iliac limb (Figure , B) was seen on electrocardiographically-triggered (dynamic) computed tomographic angiography (CTA), which also revealed considerable craniocaudal heartbeat-dependent movement of the aorta (Movie 1). Migration of the limb continued, and 1 year later, there was total disconnection (type III endoleak) seen on CTA (Figure , C) performed for regular follow-up. The disconnection was treated successfully by endovas-This study was supported by an unrestricted grant from the Leatare Foundation, Monaco.

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Section: Discussionmentioning

confidence: 69%

Recurrent Stent-Graft Disintegration Caused by Cardiac-Induced Aortoiliac Movements

Keulen¹,

Prehn²,

Moll³

et al. 2010

Journal of Endovascular Therapy

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“…Anecdotal reports have suggested a high chance of recurrence after sealing of primary type-1a endoleaks has occurred. 5,15,16 Only one recurrence was detected after 5 years, probably caused by progression of disease. It is believed that this low recurrence rate is directly associated with the criteria for watchful waiting.…”

Section: Discussionmentioning

confidence: 99%

Spontaneous Delayed Sealing in Selected Patients with a Primary Type-Ia Endoleak After Endovascular Aneurysm Repair

Gonçalves

Verhagen

Vasanthananthan

et al. 2014

European Journal of Vascular and Endovascular Surgery

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“…Other sources include gastrointestinal filling and peristalsis 3, 4 , the cardiac cycle 5 , medication-induced changes in organ dimensions 6 , vasculopathy 7 , vascular surgery including renal vessel stenting 8 , postoperative adhesions causing organ shift, and physiologic deformation of the tumor in response to treatment. Together, these sources define the margins that during the treatment-planning process should be added to organs at risk to minimize treatment-related side effects.…”

Section: Introductionmentioning

confidence: 99%

Novel Assessment of Renal Motion in Children as Measured via Four-Dimensional Computed Tomography

Panandiker

Sharma

Naik

et al. 2012

International Journal of Radiation Oncology*Biology*Physics

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Purpose Abdominal intensity-modulated radiation therapy and proton therapy require quantification of target and organ motion to optimize localization and treatment. Although addressed in adults, there is no available literature on this issue in pediatric patients. We assessed physiologic renal motion in pediatric patients. Methods and Materials Twenty free-breathing pediatric patients at a median age of 8 years (range, 2-18 years) with intra-abdominal tumors underwent computed tomography (CT) simulation and 4-dimensional CT (4DCT) acquisition (slice thickness, 3 mm). Kidneys and diaphragms were contoured during 8 phases of respiration to estimate center of mass motion. We quantified center of kidney mass mobility vectors in 3 dimensions: anterior-posterior (A-P), medial-lateral (M-L), and superior-inferior (S-I). Results Kidney motion decreases linearly with decreasing age and height. The 95% confidence interval for the averaged minima and maxima of renal motion in children younger than 9 years was 5 to 9 mm in the M-L direction, 4 to 11 mm in the A-P direction, and 12 to 25 mm in the S-I dimension for both kidneys. In children older than 9 years, the same confidence interval reveals a widening range of motion that was 5 to 16 mm in the M-L direction, 6 to 17 mm in the A-P direction, and 21 to 52 mm in the S-I direction. Although not statistically significant, renal motion correlated with diaphragm motion in older patients. The correlation between diaphragm motion and BMI was borderline (r = 0.52, p = 0.0816) in younger patients. Conclusions Renal motion is age and height dependent. Measuring diaphragmatic motion alone does not reliably quantify pediatric renal motion. Renal motion in young children ranges from 5 to 25 mm in orientation-specific directions. The vectors of motion range from 5 to 52 mm in older children. These preliminary data represent novel analyses of pediatric intra-abdominal organ motion.

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Use of cine magnetic resonance angiography in quantifying aneurysm pulsatility associated with endoleak

Cited by 27 publications

References 23 publications

Recurrent Stent-Graft Disintegration Caused by Cardiac-Induced Aortoiliac Movements

Recurrent Stent-Graft Disintegration Caused by Cardiac-Induced Aortoiliac Movements

Spontaneous Delayed Sealing in Selected Patients with a Primary Type-Ia Endoleak After Endovascular Aneurysm Repair

Novel Assessment of Renal Motion in Children as Measured via Four-Dimensional Computed Tomography

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