Spontaneous massive hemothorax presenting as a late complication of stent implantation in a patient with pulmonary vein stenosis following radiofrequency ablation for atrial fibrillation.

Catheter ablation for symptomatic and drug-resistant atrial fibrillation is considered as the main acquired cause of pulmonary vein stenosis in adults. Controversy currently exists about the optimal treatment approach of this entity. Stenting seems to achieve lower vessel restenosis rates than isolated balloon angioplasty. However, these techniques are not exempt from complications. We present a case of spontaneous massive haemothorax presenting as a late complication of stent implantation in a patient with pulmonary vein stenosis.

Integrating CAD modules in a PACS environment using a wide computing infrastructure.

PURPOSE: The aim of this paper is to describe a project designed to achieve a total integration of different CAD algorithms into the PACS environment by using a wide computing infrastructure. METHODS: The aim is to build a system for the entire region of Galicia, Spain, to make CAD accessible to multiple hospitals by employing different PACSs and clinical workstations. The new CAD model seeks to connect different devices (CAD systems, acquisition modalities, workstations and PACS) by means of networking based on a platform that will offer different CAD services. This paper describes some aspects related to the health services of the region where the project was developed, CAD algorithms that were either employed or selected for inclusion in the project, and several technical aspects and results. RESULTS: We have built a standard-based platform with which users can request a CAD service and receive the results in their local PACS. The process runs through a web interface that allows sending data to the different CAD services. A DICOM SR object is received with the results of the algorithms stored inside the original study in the proper folder with the original images. CONCLUSIONS: As a result, a homogeneous service to the different hospitals of the region will be offered. End users will benefit from a homogeneous workflow and a standardised integration model to request and obtain results from CAD systems in any modality, not dependant on commercial integration models. This new solution will foster the deployment of these technologies in the entire region of Galicia.

Breast hemangiomas: correlation between imaging and pathologic findings.

Hemangiomas are benign vascular tumors that are rare in the breast. A high percentage of hemangiomas are diagnosed incidentally during imaging examinations. They have mammographic, sonographic, and pathologic characteristics that allow radiologists and pathologists to diagnose them. We present four different cases of breast hemangiomas showing their mammographic and sonographic features. Two were diagnosed with an 18-gauge core needle biopsy and they underwent surgical excision. The other two cases were diagnosed with a 14-gauge core needle biopsy and their radiologic and pathologic appearances were concordant with breast hemangiomas, so they did not need surgical excision and are being followed.