Lojana Tuntiyatorn

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Marchiafava-Bignami disease (MBD) is a rare complication of chronic alcoholism whose main pathology is symmetrical demyelination and necrosis of the corpus callous. The lesion may be found in hemispheric white matter, but the cortical involvement is extremely rare. We reported herein two cases of MBD with magnetic resonance (MR) findings, additional MR(More)
OBJECTIVE Test the hypothesis about the potential role of functional MRI (fMRI) to evaluate the plasticity of the cortical motor areas in patients with brains tumors and brain arteriovenous malformations (AVMs) and measurement of the lesion-to-fMRI activation distance for predicting risk of new motor deficit after surgery. MATERIAL AND METHOD This was a(More)
OBJECTIVE To evaluate results of stereotactic radiotherapy for the treatment of optic nerve sheath meningioma (OM) at Ramathibodi Hospital. MATERIAL AND METHOD Twelve patients with primary OM were treated with stereotactic radiation between 1998 and 2005. Five patients underwent surgery and had no light perception before radiation. All patients except one(More)
PURPOSE To study the clinical usefulness and sensitivity of MR cisternography as noninvasive study in the diagnosis of CSF fistula in patients with clinical diagnosis CSF rhinorrhea or otorrhea. METHOD Thirty-five patients with clinically diagnosed CSF leakage were examined for site of dural tear with MR cisternography with additional plain(More)
This paper describes a framework for automatic nasopharyngeal carcinoma segmentation from CT images. The proposed technique is based on the Region Growing Method. It is automatic segmentation in which an initial seed is generated without human intervention. The seed is generated from a probabilistic map representing the chances of it being tumor. This map(More)
The prognosis of children with diffuse intrinsic pontine glioma (DIPG) is very poor. Radiotherapy remains the standard treatment for these patients, but the median survival time is only 9 months. Currently, the use of concurrent radiotherapy with temozolomide (TMZ) has become the standard care for adult patients with malignant gliomas. We therefore(More)
PURPOSE This paper proposes a new image segmentation technique for identifying nasopharyngeal tumor regions in CT images. The technique is modified from the seeded region growing (SRG) approach that is simple but sensitive to image intensity of the initial seed. METHODS CT images of patients with nasopharyngeal carcinoma (NPC) were collected from(More)
We report a 10-year-old male with Hb E/Beta thalassemia disease who developed chronic graft-versus-host disease (cGVHD) of antiphospholipid antibody syndrome after successful allogeneic stem cell transplantation (SCT). He exhibited a recurrent ischemic stroke on day 368 post-SCT while on cyclosporine A, azathioprine, and prednisolone. The immunosuppressive(More)
This paper presents an automatic segmentation technique for identifying nasopharyngeal carcinoma regions in CT images. The proposed technique is based on the region growing method by which an initial seed is automatically generated. A probabilistic map representing a chance of being the tumor pixel in each CT image will be created and used for initial seed(More)
A 3-year-old male, diagnosed with stage 4 neuroblastoma, developed recurrent leptomeningeal metastasis after multi-modality treatment including multi-agent chemotherapy, surgery, high dose chemotherapy plus stem cell rescue, cis-retinoic acid and intravenous (IV) topotecan. He then received intraommaya (IO) topotecan three times weekly (maximum dose; 0.4(More)