Search

Marfan syndrome is a connective tissue disorder with manifestations in multiple organ systems. (1) Dilatation of the main pulmonary artery is one of the established criteria for the diagnosis of [...]

De nauwkeurigheid bepalen van multiparametrische 3 Tesla (3T) MRI met endorectale spoel (inclusief T2-gewogen, diffusiegewogen en dynamische contrastversterkende opnamen) bij de stadiëring van prostaatkanker in een prospectieve setting.Van januari 2007 tot januari 2010 ondergingen 123 opeenvolgende patiënten een radicale prostatectomie. Hiervan ondergingen 83 patiënten preoperatief een multiparametrische 3T MRI met endorectale spoel (zonder voorafgaande hormoon- of radiotherapie). De radiologische stadiëring, bepaald middels prospectieve MRI-verslagen gemaakt door 2 ervaren radiologen, werd vergeleken met het pathologische tumorstadium. Nauwkeurigheid van de detectie van extraprostatische doorgroei (EPE) werd bepaald.In de prostatectomiepreparaten was bij 53% (44/83) van de patiënten EPE aanwezig. Nauwkeurigheid, sensitiviteit en specificiteit voor de detectie van EPE met de MRI waren respectievelijk 72% (60/83), 54% (21/39) en 89% (39/44).In een prospectieve klinische setting is de multiparametrische 3T-MRI met endorectale spoel een accurate techniek bij de stadiëring van prostaatkanker voorafgaand aan radicale prostatectomie.To prospectively evaluate the accuracy of 3 Tesla (3T) multiparametric endorectal coil MRI (including. T2- weighted, diffusion-weighted and dynamic contrast enhanced imaging) for local staging of prostate cancer in a clinical setting.From Januray 2007 until January 2010, 123 consecutive patients underwent radical prostatectomy. Of these, 83 received a preoperative multiparametric 3T endorectal coil MRI (with no prior hormone or radiotherapy). Staging outcomes in prospective MRI reports made by two experienced radiologists were compared to pathologic tumour stage. Pooled accuracy rates of detection of extraprostatic extension (EPE) were determined.On prostatectomy specimens, EPE was evident in 53% (44/83) of all patients. Overall accuracy, sensitivity and specificity for MR detection of EPE was 72% (60/83), 54% (21/39) and 89% (39/44), respectively.In a prospective clinical setting, multiparametric 3T MR imaging using the endorectal coil is an accurate technique in local staging of prostate cancer prior to radical prostatectomy.

Extramedullary plasmacytomas are uncommon manifestations of plasma cell neoplasms, which occur rarely in the urinary tract. We report to our knowledge the third case of primary IgA plasmacytoma of the urethra. Diagnosis, therapy and followup with magnetic resonance imaging are presented.

Migration of thoracic epidural radio-opaque catheters was evaluated in 25 patients scheduled for thoracic surgery in the supine position (n = 5) or in the lateral position with lateral extension of the thoracic spine ( n =20). Chest radiography was performed daily for 3 days after operation. Eighty-nine per cent of catheter tips were visualised in the epidural space. The catheter tip position was unchanged in all patients operated upon in the supine position. In the group operated upon in the lateral position, the catheter tip retracted from day 1 to day 2 by an average of 0.69 cm (SD 1.08; p <0.05); from day 2 to day 3 the average retraction was 0.35 cm (SD 0.67; p <0.05).