Angiographic reconstructions of CT perfusion for occlusion detection in ischemic stroke.

Background: Both CT angiography and CT perfusion involve the administration and tracking of a contrast medium bolus for different purposes. In this study, we aim to compare the diagnostic accuracy and subjective image quality of CTP-angiographic reconstructions with conventional CTA for occlusion detection in ischemic stroke patients.

Methods: In this retrospective study, patients with a final diagnosis of ischemic stroke and who underwent both CTA and CTP from September 2020 up to and including September 2021 were included.

Additional value of CTP maps in occlusion detection on CTP angiographic reconstructions for ischemic stroke.

Background: CT perfusion angiographic reconstructions (CTP-AR), derived at the peak arterial inflow, have demonstrated similar diagnostic accuracy to CTA for occlusion detection in the anterior circulation. Colour-coded CTP maps may aid in localizing an occlusion. This study aim to assess the additional value of CTP maps for occlusion detection in ischemic stroke patients assessed with CTA or CTP-AR.

Comparison of clinical, technical, and safety outcomes between the Sofia 5Fr catheter vs. the Sofia 6Fr catheter; a MaSQ-Registry study.

Background: Direct aspiration during endovascular treatment (EVT) for acute ischemic stroke (AIS) patients is safe and effective. The 'Soft torqueable catheter Optimized For Intracranial Access' (Sofia) catheter is commonly used. Data on differences between 5Fr and 6Fr Sofia is limited.

Post-endovascular therapy contrast extravasation in the mesial temporal region on dual-energy CT is associated with outcome in acute ischemic stroke patients.

Purpose: Pre- and post-endovascular treatment (EVT) imaging may aid in predicting functional outcomes in acute middle cerebral artery (MCA) ischemic stroke. Low post-EVT contrast extravasation (CE)-ASPECTS is associated with poor functional outcomes. Besides the MCA regions included in the ASPECTS score, CE may be seen in the mesial temporal (MT) region.

Procedural blood pressure and contrast extravasation on dual energy computed tomography after endovascular stroke treatment.

Background: Blood brain barrier disruption (BBBD) can be visualized by contrast extravasation (CE) after endovascular treatment (EVT) in patients with acute ischemic stroke. Elevated blood pressure is a risk factor for BBBD. However, the association between procedural blood pressure and CE post-EVT is unknown.

The correlation between CT perfusion deficits and immediate post-endovascular treatment contrast extravasation on dual energy CT in acute ischemic stroke patients.

Purpose: After endovascular therapy (EVT) for ischemic stroke, post-EVT CT imaging often shows areas of contrast extravasation (CE) caused by blood brain barrier disruption (BBBD). Before EVT, CT-perfusion (CTP) can be used to estimate salvageable tissue (penumbra) and irrevocably damaged infarction (core). In this study, we aimed to correlate CTP deficits to CE, as a surrogate marker for BBBD, after EVT for ischemic stroke.

Procedural Blood Pressure and Intracranial Hemorrhage on Dual-Energy Computed Tomography After Endovascular Stroke Treatment.

Purpose: Optimal systolic blood pressure (SBP) management during endovascular treatment (EVT) for acute ischemic stroke remains a topic of debate. Though BP is associated with worse functional outcome, the relationship between BP and post-procedural intracranial hemorrhage (ICH) is less well-known. We aimed to investigate the association between BP during EVT and post-procedural ICH on dual-energy CT (DECT).

Prognostic implications of intracranial haemorrhage on dual-energy CT immediately following endovascular treatment for acute ischemic stroke.

Objective: To describe the incidence, risk factors, and prognostic relevance of intracranial haemorrhage (ICH) immediately after endovascular treatment (EVT) for ischaemic stroke in the anterior circulation.

Methods: EVT records from 2010 to 2019 were screened. Included patients underwent DECT within 3h post-EVT.

Endovascular treatment versus no endovascular treatment after 6-24 h in patients with ischaemic stroke and collateral flow on CT angiography (MR CLEAN-LATE) in the Netherlands: a multicentre, open-label, blinded-endpoint, randomised, controlled, phase 3 trial.

Background: Endovascular treatment for anterior circulation ischaemic stroke is effective and safe within a 6 h window. MR CLEAN-LATE aimed to assess efficacy and safety of endovascular treatment for patients treated in the late window (6-24 h from symptom onset or last seen well) selected on the basis of the presence of collateral flow on CT angiography (CTA).

Methods: MR CLEAN-LATE was a multicentre, open-label, blinded-endpoint, randomised, controlled, phase 3 trial done in 18 stroke intervention centres in the Netherlands.

Comparing the Diagnostic Performance of Contrast-Enhanced Mammography and Breast MRI: a Systematic Review and Meta-Analysis.

To provide a systematic review and meta-analysis that evaluates the diagnostic accuracy of contrast-enhanced mammography (CEM) compared to standard contrast-enhanced breast magnetic resonance imaging (breast MRI). Like breast MRI, CEM enables tumour visualization by contrast accumulation. CEM seems to be a viable substitute for breast MRI.

Real-Time Wood Behaviour: The Use of Strain Gauges for Preventive Conservation Applications.

Within the heritage field, the application of strain gauges on wood surfaces is a little-explored but inexpensive and effective method to analyse the environmental appropriateness of rooms for the wooden heritage collections they contain. This contribution proposes a wood sensor connected to a data logger to identify short moments with an elevated risk of harm. Two experiments were performed to obtain insights pertaining to the applicability of wood sensors to evaluate preservation conditions.

Software tools of the Computis European project to process mass spectrometry images.

Among the needs usually expressed by teams using mass spectrometry imaging, one that often arises is that for user-friendly software able to manage huge data volumes quickly and to provide efficient assistance for the interpretation of data. To answer this need, the Computis European project developed several complementary software tools to process mass spectrometry imaging data. Data Cube Explorer provides a simple spatial and spectral exploration for matrix-assisted laser desorption/ionisation-time of flight (MALDI-ToF) and time of flight-secondary-ion mass spectrometry (ToF-SIMS) data.

imzML--a common data format for the flexible exchange and processing of mass spectrometry imaging data.

The application of mass spectrometry imaging (MS imaging) is rapidly growing with a constantly increasing number of different instrumental systems and software tools. The data format imzML was developed to allow the flexible and efficient exchange of MS imaging data between different instruments and data analysis software. imzML data is divided in two files which are linked by a universally unique identifier (UUID).

[Quality of life, asthma control, urinary cotinine and therapeutic education among asthmatic children].

Therapeutic patient education (TPE) has been standard practice in France for roughly 20 years. However, TPE has only recently been officially recognized and has rarely been assessed. The objective of this study was to assess the impact of TPE on passive smoking exposure and asthma outcomes in young patients referred to a hospital school for children with asthma.

[Reconstruction of hand dorsum soft tissue defect using anterolateral thigh perforator flap: description, case study and review of literature].

Reconstruction of hand dorsum soft tissue defect usually requires a flap. The dorsal skin is thin and the underlying structures require coverage by vascularised tissue. We have been using perforator flaps in these cases, especially the anterolateral thigh perforator flap.

[About perforator flaps…20 years later].

Despite the birth of reconstructive surgery 2000 years ago, the main advances in this field appeared in the second half of the 20th century. Born in Asia, it is from that same continent that the last improvement has occurred through the perforator flap concept. Combining advances in the understanding of cutaneous blood supply and advances in surgical instrumentation to optimize the reconstruction while reducing morbidity is gradually becoming a reality.

What should define a "perforator flap"?

In spite of the Gent consensus on perforator flap terminology, widespread confusion still exists regarding the true description of these flaps, making it hard to understand these surgical procedures in comparison with conventional flap techniques. The value of perforator flaps can be better understood by further clarifying certain aspects of previous descriptions. The authors would like to propose enriching the standard Gent nomenclature with optional terms that specify additional aspects of the perforator flap such as including the vessel of origin, the type of vascular dissection, the muscle involved, and the type of perforator vessel.

[From Tansini to Angrigiani: improvement and refinement of the thoracodorsal flap].

Flap surgery is the art of transposing an autonomous vascularised tissue, from a donor site to a distant recipient site. It was born 2000 years ago in India, evolving from random flaps to microsurgical flaps with a skeletonised vascular pedicle. This evolution was possible through the knowledge of cutaneous vascularisation and allows today the spreading field of perforator flaps.

Reconstruction of a full-thickness abdominal wall defect using an anterolateral thigh free flap.

We present an original case of reconstruction of the abdominal wall after full-thickness parietal resection using an anterolateral thigh flap harvested with its aponeurosis; we describe the advantages of this technique which has seldom been used for this indication. A 49-year-old male presented with a recurrent dermatofibrosarcoma protuberans involving the full thickness of the upper anterior abdominal wall; after excision, a 20 x 17 cm full-thickness defect was reconstructed with an omentoplasty, a bi-layered parietal prosthesis, and a fasciocutaneous free flap with its muscular aponeurosis from the anterolateral thigh. The postoperative course was uncomplicated.

[Custom made chest-wall implant and Poland's syndrome: Between art and science].

Poland's syndrome is a well-described congenital thoracic deformity with mostly only an aesthetic damage. We report the case of a chest-wall correction of a young male patient by a custom made silicone implant, detailing the original process of manufacturing, and justifying the choice not to use a conventional technique of reconstruction. This alternative enhances the surgeon's therapeutic arsenal, so that he can provide a customized answer, adapted to the requirements and the morphological characteristics of each patient.

[Evaluation of 3D numerisation with structured light projection in breast surgery].

Introduction: Breast plastic surgery still remains subjective with no objective measurement tool to evaluate and to predict our results. In this aim, we did an evaluation of a new 3D surface measurement tool using the structured projected light technology (Inspeck) in breast surgery.

Material And Method: We evaluated the different measurement tools available (euclidean distance, projected on the surface distance, and volume measurement) with the numerisation system on distance and silicone prosthesis of known length and volume.

[Role of the association artificial dermis and negative pressure therapy: about two cases].

In our modern health system, the improvement of the medical care cannot come along with an increase of expenses. In this purpose, we tried to bring to light the medical and economic, direct and indirect, benefits which exist with the association of an artificial dermis, Integra, and negative pressure therapy as the vacuum assisted closure (VAC) for wound which would have been treated by Integra alone. While preserving the aesthetic and functional qualities obtained by the artificial dermis alone followed by a skin graft after 21 days of treatment, the association of the negative pressure allows to perform the skin graft after only 10 days of treatment.