[MR imaging of coronary arteries: noncontrast free-breathing whole heart acquisition with ultrafast 3D balanced gradient-echo technique]. / Imagerie par résonance magnétique des artères coronaires: acquisition "coeur entier", en respiration libre, sans injection d'agent de contraste et utilisant la séquence 3D en écho de gradient balancé ultrarapide.

The 3D balanced gradient-echo technique is described along with th eimaging protocol for MR imaging of th ecoronary arteries. A 3D volume with spatial resolution of 0.6 x 0.6 x 0.75 mm composed of 140 slices covering the whole heart is acquired over 10 minutes. The main advantage of this whole heart technique is the possibility to image the coronary arteries along their entire course in a single acquisition. Selection of the navigator positions, timing of image acquisition and its duration through the R-R interval are the main factors requiring optimization.

[Ear nose sarcoma. Report of 3 cases]. / Les Sarcomes à localisation ORL. (A propos de 3 Observations).

BACKGROUND: Head and neck sarcoma are very rare malignant tumors which can occur on any different ENT localization. AIM: The authors report tree different variety of ENT sarcoma diagnosed and treated at the oto-rhino-laryngological department of military hospital of Tunis. We intend to remind of clinical and histological particularities, therapeutic modalities and finally to evaluate the follow-up. METHODS: From 2001 to 2007, three cases of head and neck sarcomas were diagnosed in ENT department of military hospital of Tunis. RESULT: the study concerned a women (22 years old) and two men 36 and 76 years old. It deals with an orbital rhabdomyosarcoma, a carcinosarcoma of submandibular gland and a maxillary chondrosarcoma. In each case, diagnosis was validated by the immunohistochemistry. All patients had surgical removal of their tumor. External irradiation or/and chemotherapy was also indicated for all cases. CONCLUSION: ENT sarcomas are aggressive neoplasm. Long-term survival is bad with high potentialities of local recurrence and distant metastases.

[Contrast enhanced MR angiography: evolving towards whole-body real time acquisitions]. / Angiographie par résonance magnétique avec injection de produit de contraste: évolution vers le corps entier et le temps réel.

MRA includes all techniques used to depict vessels with MR. Gadolinium contrast injection combined with gradient echo sequences is the technique of choice for vascular imaging. Technical advances now allow faster acquisitions. The purpose of this article is to present two main advances with MRA: whole-body MRA and dynamic 3D MRA. Technical considerations, acquisition techniques, advantages and pitfalls based on our experience with a 1.5T MR unit will be discussed in order to promote their use in routine clinical practice.

Why Potential Living Kidney Donors Do Not Proceed for Donation: A Single-Center Experience.

BACKGROUND: Living donor kidney transplantation is the best type of renal replacement therapy. However, large numbers of potential living kidney donors (LKDs) are declined because of various reasons. The aim of this study is to define and quantify the reasons for declining potential LKDs. METHODS: All potential LKDs evaluated at our center between September 2008 and December 2016 were reviewed. Data were collected from the electronic database. RESULTS: A total of 2090 potential LKDs were evaluated, with an average age of 32 years (range, 18-67 years) and men constituting 72.6%. A total of 675 (32.3%) were accepted for donor nephrectomy. Living kidney donation did not proceed in 830 (39.7%): 661 (79.6%) because of donor-related reasons and 169 (20.4%) because of recipient-related reasons. Donor-related reasons included medical contraindications (61.7%), immunological barriers (23.1%), surgical contraindications (7.9%), and psychosocial reasons (7.3%). A total of 585 (28.0%) potential LKDs voluntarily withdrew themselves at variable time points during the evaluation process, even after being accepted for donation. Male and young (18-35 years) potential LKDs were more likely to withdraw compared with female and older (>35 years) potential LKDs (34.3% vs 11.4%, P < .005 and 29.6% vs 24.5%, P = .02, respectively). CONCLUSIONS: Despite the large number of potential LKDs, medically complex donors are increasing, and a significant proportion decided to withdraw at some point during the evaluation process. The latter highlights the need to increase public awareness about living donation, to perform more careful initial screening and targeted educational programs, and to provide continuous support for potential LKDs.

[Sudden onset of hemoptysis during (coil) embolization of a Swan-Ganz catheter induced pseudoaneurysm of the pulmonary artery]. / Survenue d'une hémorragie bronchique lors de l'embolisation d'un pseudo-anévrysme pulmonaire consécutif a un cathétérisme par Swan-Ganz.

We report the embolization of a pulmonary artery pseudoaneurysm consecutive to Swan-Ganz catheterization. Embolization was successful despite an iatrogenic rupture and a massive hemoptysis.

[Thyroid surgery (356 cases): risks and complications]. / Chirurgie thyroïdienne (356 cas): risques et complications.

The purpose of this study was to evaluate the risks and complication rate of thyroid surgery. The authors present a retrospective study of 356 patients surgically treated for thyroid nodules, between 1987 and 1998, at the military hospital of Tunis. The patients were categorised into 3 groups: group I: 238 solitary thyroid nodules (66.8%); group II: 92 multinodular goitres (25.8%) included 12 retrosternal goitres (3.37%) and group III: 26 cases of Basedow's disease (7.4%). Patients benefitted from unilateral surgery in 72% of cases and from bilateral surgery (total or subtotal thyroidectomy) in the remaining 28% of cases. Malignancy was found in 34 cases (9.5%). The complications observed were haemorrhage (0.56% of cases), unilateral post operative recurrent laryngeal palsy (1.12% of cases), and permanent hypoparathyroidism in 0.81% of cases. Experienced surgeons and the use of a meticulous surgical technique can reduce the incidence of post operative complications in thyroid surgery.