Microsurgical anatomy of the Adamkiewicz artery–anterior spinal artery junction

N’da, Hermann Adonis; Chenin, Louis; Capel, Cyrille; Havet, É.; Gars, D. Le; Peltier, Johann

doi:10.1007/s00276-015-1596-3

Cited by 17 publications

(13 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We estimated

d^{' 2}

using a W task ( f ) calculated for a small disk image corresponding to the cross section of an enhanced vessel with a diameter ϕ as,

W (f) = normalC \frac{2 J_{1} (π ϕ f)}{π ϕ f},

where J 1 () is a first‐order Bessel function, and C denotes the contrast of the enhanced vessel. ϕ = 1.0 mm and C = 200 HU were used in accordance with typical diameters of the Adamkiewicz artery, which is known as an artery not easily visualized in CTA, and a minimally required attenuation of CTA, respectively …”

Section: Methodsmentioning

confidence: 99%

Technical Note: Performance comparison of ultra‐high‐resolution scan modes of two clinical computed tomography systems

et al. 2019

View full text Add to dashboard Cite

Purpose Two ultra‐high‐resolution (UHR) computed tomography (CT) scanners are clinically available. One is achieved by a CT system with a 0.25 mm × 160 row detector (Detector‐UHR), whereas the other is with a 0.6 mm × 32 row detector with in‐plane comb filtering in a dual source CT (Comb‐UHR). We compared radiation dose efficiencies of the two UHR modes to that of a routine scan mode (RS), using physical image quality measures for an assumed condition of abdominal CT angiography (CTA). Methods A wire phantom, a 300‐mm cylindrical water bath phantom, and a microdisk phantom were used for measuring the modulation transfer function (MTF), noise power spectrum (NPS), and slice sensitivity profiles (SSP), respectively, at CTDIvol of 20 mGy. Images with minimal slice thicknesses were reconstructed by filtered back projection methods. System performance functions (SPF2) based on the prewhitening theorem were calculated by dividing MTF2 by NPS measurements. The ideal observer's detectability index (d'2) was also estimated for a task corresponding to a 1‐mm diameter vessel. Furthermore, a bar‐pattern phantom placed in a water phantom resembling an adult abdomen was scanned, and the visibility of the bars was observed. Results System performance function (SPF2) results showed that Comb‐UHR has a 70% dose efficiency compared to RS and provides better than twofold SPF2 compared to Detector‐UHR. The d'2 values of Detector‐UHR, Comb‐UHR, and RS were 6.5, 14.7, and 16.0, respectively. Although the bar‐pattern phantom images were consistent with the SPF results, bar widths < 1.0 mm for Detector‐UHR and < 0.75 mm for Comb‐UHR and RS were not resolved. Conclusions Though both the UHR modes exhibited system performances extending to 2.6 cycles/mm, they appeared not to be advantageous compared to RS in the conditions applicable to abdominal CTA, because of their insufficient dose efficiencies.

show abstract

“…We estimated

d^{' 2}

using a W task ( f ) calculated for a small disk image corresponding to the cross section of an enhanced vessel with a diameter ϕ as,

W (f) = normalC \frac{2 J_{1} (π ϕ f)}{π ϕ f},

Section: Methodsmentioning

confidence: 99%

Technical Note: Performance comparison of ultra‐high‐resolution scan modes of two clinical computed tomography systems

et al. 2019

View full text Add to dashboard Cite

show abstract

“…[17] The artery of Adamkiewicz is found 73% of the time between T8 and T10. [12] In the present case, the penetrating injury occurred at T9-T10, which was statistically in proximity to the artery of Adamkiewicz. Prior to the endovascular deployment of the endograft, an angiogram was performed to help visualize and avoid occlusion of the artery of Adamkiewicz, as described by Kamada et al .…”

Section: Discussionmentioning

confidence: 60%

Penetrating thoracic spinal cord injury with ice pick extending into the aorta. A technical note and review of the literature

et al. 2016

View full text Add to dashboard Cite

Background:Penetrating spinal cord injuries pose a great challenge to both patients and the treating physicians. Although the overall incidence of penetrating spinal cord injury is the highest in the military, the ubiquity of guns in our society continues to make penetrating spinal cord injury prevalent in the civilian population. These types of injuries are particularly complicated because, beyond the trauma to the neural elements and supporting structures, other organs can be affected and a team approach is required for successful treatment.Case Description:In this report, the authors present a unique case of an ice pick penetrating posteriorly through the spinal canal into the aorta. The described surgical management involved careful consideration and planning to prevent worsening vascular and neurological compromise. Among the challenges faced are neurological compromise, vascular injury, spinal instability, and cerebrospinal fluid leak.Conclusion:To the author’s knowledge, this challenging case represents the first description of a successful removal of a penetrating thoracic spinal foreign body that terminated within the lumen of the thoracic aorta.

show abstract

“…The treatment of proximal and distal SINE had been reported in previous clinical cases [ 6 – 8 ]. Some researchers had suggested that the risk of paraplegia could be significantly reduced by preserving as many intercostal arteries as possible [ 9 , 10 ]. It was worth to be considered to avoid potential complications induced by paraplegia due to the long frame coverage area [ 9 – 11 ].…”

Section: Discussionmentioning

confidence: 99%

Re-TEVAR in treatment of stent graft-induced new entry between two non-overlapping stent-grafts: a case report

Tang

Zhang

et al. 2020

J Cardiothorac Surg

View full text Add to dashboard Cite

Background Progress of the aortic disease after the stent graft treatment of aortic dissection implicates the potential risks of stent graft-induced new entry (SINE). Although rarely reported, it should be vigilant in patients who might incur serious complication in early period after the thoracic endovascular aortic repair (TEVAR). Thus, the development of aortic disease-specific stent grafts would assist in achieving positive patient outcomes when suffering SINE. However, it is an extremely rare for SINE between two non-overlapping stent-grafts. Case presentation We here reported a 59-year-old male patient with sudden onset of chest pain for 4 h. Multi-detector computed tomography (MDCT) revealed a huge SINE formed between two non-overlapping stent-grafts. The re-TEVAR surgery was performed and the patient experienced a good recovery. Conclusion The SINE between two non-overlapping stent-grafts treated by re-TEVAR operation was alternative and feasible. The short-term and medium-term follow-up results were satisfactory.

show abstract

Microsurgical anatomy of the Adamkiewicz artery–anterior spinal artery junction

Abstract: These anatomical findings allow a planning of the neurological risk before thoracoabdominal aorta aneurysm or thoracolumbar anterior or transforaminal spine surgery.

Cited by 17 publications

References 18 publications

Technical Note: Performance comparison of ultra‐high‐resolution scan modes of two clinical computed tomography systems

Technical Note: Performance comparison of ultra‐high‐resolution scan modes of two clinical computed tomography systems

Penetrating thoracic spinal cord injury with ice pick extending into the aorta. A technical note and review of the literature

Re-TEVAR in treatment of stent graft-induced new entry between two non-overlapping stent-grafts: a case report

Contact Info

Product

Resources

About