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Journal of Imaging, Volume 7, Issue 4

April 2021 - 14 articles

Cover Story: Beyond well-established diagnostic imaging applications, ultrasounds are currently emerging in clinical practice as a noninvasive technology for therapy: temperature inside target solid tumors can be increased, thus leading to apoptosis/necrosis of neoplastic tissues. Patient safety during magnetic resonance-guided focused ultrasound surgery (MRgFUS) treatments was investigated by performing experiments in a tissue-mimicking phantom, as well as in ex vivo skin samples, to promptly identify unwanted temperature rises. MR images were analyzed using classical proton resonance frequency (PRF) shift and referenceless thermometry methods for estimating temperature variations. Results were compared against interferometric optical fiber measurements. Temperature increases during the treatment were not accurately detected by MR-based referenceless thermometry methods, and more sensitive measurement systems, such as optical fibers, would be required.

Articles (14)

  • Review
  • Open Access
97 Citations
11,788 Views
21 Pages

Transfer Learning in Magnetic Resonance Brain Imaging: A Systematic Review

  • Juan Miguel Valverde,
  • Vandad Imani,
  • Ali Abdollahzadeh,
  • Riccardo De Feo,
  • Mithilesh Prakash,
  • Robert Ciszek and
  • Jussi Tohka

(1) Background: Transfer learning refers to machine learning techniques that focus on acquiring knowledge from related tasks to improve generalization in the tasks of interest. In magnetic resonance imaging (MRI), transfer learning is important for d...

  • Article
  • Open Access
9 Citations
4,031 Views
15 Pages

As difficult vision-based tasks like object detection and monocular depth estimation are making their way in real-time applications and as more light weighted solutions for autonomous vehicles navigation systems are emerging, obstacle detection and c...

  • Article
  • Open Access
13 Citations
3,585 Views
16 Pages

A GAN-Based Self-Training Framework for Unsupervised Domain Adaptive Person Re-Identification

  • Yuanyuan Li,
  • Sixin Chen,
  • Guanqiu Qi,
  • Zhiqin Zhu,
  • Matthew Haner and
  • Ruihua Cai

As a crucial task in surveillance and security, person re-identification (re-ID) aims to identify the targeted pedestrians across multiple images captured by non-overlapping cameras. However, existing person re-ID solutions have two main challenges:...

  • Article
  • Open Access
3 Citations
3,692 Views
15 Pages

A Computational Study on Temperature Variations in MRgFUS Treatments Using PRF Thermometry Techniques and Optical Probes

  • Carmelo Militello,
  • Leonardo Rundo,
  • Fabrizio Vicari,
  • Luca Agnello,
  • Giovanni Borasi,
  • Salvatore Vitabile and
  • Giorgio Russo

Structural and metabolic imaging are fundamental for diagnosis, treatment and follow-up in oncology. Beyond the well-established diagnostic imaging applications, ultrasounds are currently emerging in the clinical practice as a noninvasive technology...

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J. Imaging - ISSN 2313-433X