OBJECTIVE Seronegative spondyloarthritis (SpA) is characterized by chronic inflammation affecting the axial skeleton, entheses and occasionally peripheral joints. The involvement of the sacroiliac joints, sacroiliitis, is considered as a pathognomonic radiographic finding. Magnetic resonance imaging (MRI) is the method of choice for its early detection. Bone scintigraphy (BS) is characterized b...

INTRODUCTION The assessment of the postoperative viability of vascularized and non-vascularized grafts used in the reconstruction of mandibular defects due to trauma and surgical reasons is a major problem in maxillofacial surgery. AIM In the present study, we evaluated the feasibility and image quality of blood-pool SPECT, which is used for the first time in the literature here in the assess...

BACKGROUND Active spondylolysis is an acquired lesion in the pars interarticularis and is a common cause of low back pain in the young athlete. OBJECTIVES To evaluate whether the one-legged hyperextension test can assist in the clinical detection of active spondylolysis and to determine whether magnetic resonance imaging (MRI) is equivalent to the clinical gold standard of bone scintigraphy a...

PURPOSE We aimed to assess the role of single photon emission computed tomography-computed tomography (SPECT-CT) for characterizing isolated vertebral lesions observed by bone scintigraphy compared to planar scintigraphy, SPECT, and CT, and to evaluate the impact of SPECT-CT on patient management. MATERIALS AND METHODS Data from 99 patients (mean age, 52.4±18.9 years; females, 58.5%) with 108...

Background: Hairline rib fracture commonly happens after blunt trauma, and it is hard to be detected by X-ray. Many methods can used, among them, the hybrid image of single-photon emission computed tomography (SPECT) (CT) seems produce higher sensitivity for diagnosis. Case presentation: A 63-year-old man came our rehabilitation clinic a vehicle accident 25 days earlier. He had multiple plain f...

Radionuclide 99mTc-MDP planar bone scan is the most commonly performed nuclear medicine procedure and may aid diagnosis of benign and malignant bone pathologies. 99mTc-MDP is injected intravenously and subsequently taken up by osteoblasts and incorporated into the bone matrix. In the process it acts as a marker for new bone formation, bone turnover and local vascularity. The high sensitivity of...

Received 10/2/2000; revised 11/17/2000; accepted 12/2/2000. For correspondence or reprints contact: Ming-Che Wu, M.D., Department of Nuclear Medicine, MacKay Memorial Hospital, 92, Section 2, Chung-San North Road, Taipei 10449, Taiwan. Tel: (886)2-25433535 ext. 3369, Fax: (886)2-25433535 ext. 2925, E-mail: [email protected] Background: The authors evaluated the performance of Tc-MDP planar sk...

Objective(s): The latest single-photon emission computed tomography (SPECT)/computed tomography (CT) reconstruction system, referred to as xSPECT Bone™, is a context-specific reconstruction system utilizing tissue segmentation information from CT data, which is called a zone map. The aim of this study was to evaluate theeffects of zone-map enhancement incorporated into the ordered-subset conjug...

Objective: The aim of this study was to evaluate the influences of reconstruction and attenuation correction on the differences in the radioactivity distributions in 123I brain SPECT obtained by the hybrid SPECT/CT device. Methods: We used the 3-dimensional (3D) brain phantom, which imitates the precise structure of gray mater, white matter and bone regions. It was filled with 123I solution (20...

OBJECTIVE Single photon emission computed tomography (SPECT) images provide many details of the anatomical structure. Also about bone scintigraphy, there are many reports of the improvement of diagnosis by SPECT images. Although SPECT is useful, it requires much time. So to perform SPECT for all cases is difficult in the clinical situation. Recently, due to technical improvements in gamma camer...