Diagnostic Imaging ; trends ; Humans ; Plaque, Atherosclerotic ; diagnosis

Advances in radionuclide tracers have allowed for more accurate imaging that reflects the actions of numerous neurotransmitters, energy metabolism utilization, inflammation, and pathological protein accumulation. All of these achievements in molecular brain imaging have broadened our understanding of brain function in Parkinson's disease (PD). The implementation of molecular imaging has supported more accurate PD diagnosis as well as assessment of therapeutic outcome and disease progression. Moreover, molecular imaging is well suited for the detection of preclinical or prodromal PD cases. Despite these advances, future frontiers of research in this area will focus on using multi-modalities combining positron emission tomography and magnetic resonance imaging along with causal modeling with complex algorithms.
Brain ; diagnostic imaging ; Humans ; Molecular Imaging ; methods ; trends ; Neuroimaging ; methods ; trends ; Parkinson Disease ; diagnostic imaging

No abstract available.
*Diagnostic Imaging ; Human ; Radiology/*trends ; Radiology, Interventional ; Specialties, Medical

Cerebrovascular Disorders ; diagnostic imaging ; Clinical Medicine ; Humans ; Neuroradiography ; methods ; trends ; utilization ; Stroke ; diagnostic imaging

Intravascular optical coherence tomography (IVOCT) has emerged as a high-resolution and minimal-invasive imaging technique that provides high-speed visualization of coronary arterial vessel walls and clearly displays the vessel lumen and lesions under the intima. However, morphological gray-scale images cannot provide enough information about the tissue components to accurately characterize the plaque tissues including calcified, fibrous, lipidic and mixed plaques. Quantitative IVOCT ( IVOCT) is necessary to provide the physiological contrast mechanisms and obtain the characteristic parameters of tissues with clinical diagnostic value. In this paper, the progress of IVOCT is reviewed. The current methods for quantitatively measuring optical, elastic and hemodynamic parameters of vessel wall and plaque tissues using IVOCT gray-scale images and raw backscattered signals are introduced and potential development is forecast.
Coronary Artery Disease ; diagnostic imaging ; Coronary Vessels ; diagnostic imaging ; Humans ; Tomography, Optical Coherence ; trends

We searched and retrieved literature on the topic of medical image processing published on SCI journals in the past 10 years. We then imported the retrieved literature into TDA for data cleanup before data analysis and pro cessing by EXCLE and UCINET to generate tables and figures that could indicate disciplinary correlation and research hotspots from the perspective of bibliometrics. The results indicated that people in Europe and USA were leading researchers on medical image processing with close international cooperation. Many disciplines contributed to the fast development of medical image processing with intense interdisciplinary researches. The papers that we found show recent research hotspots of the algorithm, system, model, image and segmentation in the field of medical image processing. Cluster analysis on key words of high frequency demonstrated complicated clustering relationship.
Algorithms ; Bibliometrics ; Cluster Analysis ; Diagnostic Imaging ; trends ; Humans ; Image Processing, Computer-Assisted ; trends ; International Cooperation

Diagnostic Imaging ; trends ; Humans ; Medical Oncology ; methods ; trends ; Neoplasms ; diagnosis ; genetics ; therapy ; Patient Care Management ; methods ; trends

No abstract available.
Diagnostic Imaging/*methods/trends ; Humans ; Nuclear Medicine/*methods/*trends ; Positron-Emission Tomography/methods/trends ; Tomography, Emission-Computed, Single-Photon/methods/trends

Cardiology ; instrumentation ; methods ; China ; Heart ; diagnostic imaging ; physiopathology ; Humans ; Nuclear Medicine ; instrumentation ; trends ; Radionuclide Imaging ; instrumentation ; trends ; Stethoscopes ; Ventricular Dysfunction ; diagnosis ; diagnostic imaging

OBJECTIVEThrough analysis of oversea published literatures on central effect mechanism of acupuncture in recent years, the general tendency in this filed is discussed so as to provide references for later studies.

METHODSPubmed database from January 2009 to May 2012 is retrieved with the key words of acupuncture and fMRI. As a result, 38 articles are included.

RESULTS AND CONCLUSIONSHealthy subjects are adopted for most of researches. And studies are carried out through three aspects of response characteristics of acupuncture analgesia, response characteristics of acupuncture specificity and duration of acupuncture effect. However, the brain activities of healthy subjects are obviously different from that of patients. Moreover, acupuncture treatment is also different from modern therapies. Therefore, it is held that patients should be adopted as study subjects in the future studies, and various bias in research designation and implementation course should be avoided.

Acupuncture Analgesia ; Acupuncture Therapy ; Animals ; Brain ; diagnostic imaging ; Humans ; Magnetic Resonance Imaging ; methods ; trends ; Radiography