OBJECTIVES To evaluate the accuracy of sonography in diagnosing acute appendicitis in patients with Alvarado score 4-7. METHODS This is a retrospective cross-sectional study being performed in Namazee hospital affiliated with Shiraz University of Medical sciences during a one year period from 9/2007 to 9/2008. We evaluated all patients with Alvarado score 4-7 and divided them in two groups: t...

Fluorescence is a powerful tool for in-vivo imaging in living animals. The traditional in-vivo fluorescence imaging equipment is based on single-view two-dimensional imaging systems. However, they cannot meet the needs for accurate positioning during modern scientific research. A near-infrared in-vivo fluorescence imaging system is demonstrated, which has the capability of deep source signal de...

Intracranial aneurysms have rarely been reported in association with complex partial seizures. We report five cases of complex partial seizures where aneurysms were found either accidentally or through investigations in these patients. MRI scans and angiograms revealed these aneurysms and in one patient several aneurysms were found. Four patients were treated with GDC coil embolisation with fol...

Introducing BrainPrint, a compact and discriminative representation of anatomical structures in the brain. BrainPrint captures shape information of an ensemble of cortical and subcortical structures by solving the 2D and 3D Laplace-Beltrami operator on triangular (boundary) and tetrahedral (volumetric) meshes. We derive a robust classifier for this representation that identifies the subject in ...

INTRODUCTION Three-dimensional printing, a technology used for decades in the industrial field, gains a lot of attention in the medical field for its potential benefits. With advancement of desktop printers, this technology is accessible and a lot of research is going on in the medical field. OBJECTIVE To evaluate its application in surgical field, which may include but not limited to surgica...

INTRODUCTION An MRI audit substudy was conducted in patients who underwent an MRI prior to treatment in Australia and New Zealand as part of the PETACC-6 trial in locally advanced rectal cancer. METHODS A total of 82 patients from 15 centres had rectal MRI scans reviewed for technique, data included in reports and comparison of reports with blinded central reporting by two experienced radiolo...

UNLABELLED The objective of this pilot project was to devise a new image acquisition and processing technique to produce PET/CT images rendered in 3-dimensional (3D) volume that can then be reviewed in several 3D formats such as virtual bronchoscopy and colonoscopy "fly-throughs" and external "fly-arounds." METHODS We tested the new imaging and processing protocol on 24 patients with various ...

Surrogate-driven respiratory motion models relate the motion of the internal anatomy to easily acquired respiratory surrogate signals, such as the motion of the skin surface. They are usually built by first using image registration to determine the motion from a number of dynamic images, and then fitting a correspondence model relating the motion to the surrogate signals. In this paper we prese...

The two-loop relations between the running gluino-quark-squark coupling, the gluino and the quark mass defined in dimensional regularization (DREG) and dimensional reduction (DRED) in the framework of SUSY-QCD are presented. Furthermore, we verify with the help of these relations that the three-loop β-functions derived in the minimal subtraction scheme combined with DREG or DRED transform into ...

Mailing address: Marcelo Luiz Campos Vieira • Rua Cardoso de Melo, 463, ap. 21 Vila Olímpia 04548-002, São Paulo, SP Brazil E-mail: [email protected], [email protected] Manuscript received February 10, 2008; revised manuscript received March 03, 2008; accepted March 03, 2008.