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Tomography, Volume 10, Issue 5

May 2024 - 14 articles

Cover Story: Accurate AIFs are critical for quantifying dynamic imaging studies to obtain quantitative parameters. The AIF from cardiac MRI for myocardial perfusion studies can be inaccurate due to nonlinear gadolinium effects and scan biases. Previous work input the inaccurate AIF into a deep network to correct these effects. This study proposes using AIF plus tissue time curves as inputs to a Bi-LSTM network to correct the AIF in quantitative dynamic contrast-enhanced myocardial perfusion studies. Simulated and hybrid data were used to develop, train, and evaluate the approach.  Better results were obtained by including tissue curves. If quantitative myocardial perfusion measurements can be obtained without the acquisition or analysis of a dual bolus or dual sequence, this simplifies quantitative perfusion and can aid in its adoption. View this paper
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Articles (14)

  • Article
  • Open Access
2 Citations
3,136 Views
10 Pages

Relationship between Femoral Proximal Bone Quality Assessment by MRI IDEAL-IQ Sequence and Body Mass Index in Elderly Men

  • Kashia Goto,
  • Daisuke Watanabe,
  • Norikazu Kawae,
  • Takahiro Nakamura,
  • Kazuki Yanagida,
  • Takahiro Yoshida,
  • Hajime Kajihara and
  • Akio Mizushima

20 May 2024

Background: Bone assessment using the MRI DEAL-IQ sequence may have the potential to serve as a substitute for evaluating bone strength by quantifying the bone marrow hematopoietic region (R2*) and marrow adiposity (proton density fat fraction: PDFF)...

  • Article
  • Open Access
1 Citations
1,871 Views
10 Pages

Digital Breast Tomosynthesis for Upgraded BIRADS Scoring towards the True Pathology of Lesions Detected by Contrast-Enhanced Mammography

  • Ahuva Grubstein,
  • Tal Friehmann,
  • Marva Dahan,
  • Chen Abitbol,
  • Ithai Gadiel,
  • Dario M. Schejtman,
  • Tzippy Shochat,
  • Eli Atar and
  • Shlomit Tamir

20 May 2024

Objective: To determine the added value of digital breast tomosynthesis (DBT) in the assessment of lesions detected by contrast-enhanced mammography (CEM). Material and methods: A retrospective study was conducted in a tertiary university medical cen...

  • Article
  • Open Access
3 Citations
4,368 Views
17 Pages

19 May 2024

The aim of this study was to show for the first time that low-frequency 3D-transmitted ultrasound tomography (3D UT, volography) can differentiate breast tissue types using tissue properties, accurately measure glandular and ductal volumes in vivo, a...

  • Article
  • Open Access
2,354 Views
16 Pages

Influence of Magnetic Field Strength on Intravoxel Incoherent Motion Parameters in Diffusion MRI of the Calf

  • Tamara Alice Bäuchle,
  • Christoph Martin Stuprich,
  • Martin Loh,
  • Armin Michael Nagel,
  • Michael Uder and
  • Frederik Bernd Laun

17 May 2024

Background: The purpose of this study was to investigate the dependence of Intravoxel Incoherent Motion (IVIM) parameters measured in the human calf on B0. Methods: Diffusion-weighted image data of eight healthy volunteers were acquired using five b-...

  • Article
  • Open Access
3 Citations
2,569 Views
12 Pages

Sentinel Lymph Node Mapping in Lung Cancer: A Pilot Study for the Detection of Micrometastases in Stage I Non-Small Cell Lung Cancer

  • Gaetano Romano,
  • Carmelina Cristina Zirafa,
  • Fabrizia Calabrò,
  • Greta Alì,
  • Gianpiero Manca,
  • Annalisa De Liperi,
  • Agnese Proietti,
  • Beatrice Manfredini,
  • Iosè Di Stefano and
  • Andrea Marciano
  • + 3 authors

15 May 2024

Lymphadenectomy represents a fundamental step in the staging and treatment of non-small cell lung cancer (NSCLC). To date, the extension of lymphadenectomy in early-stage NSCLC is a debated topic due to its possible complications. The detection of se...

  • Article
  • Open Access
6 Citations
3,144 Views
23 Pages

Lumbar and Thoracic Vertebrae Segmentation in CT Scans Using a 3D Multi-Object Localization and Segmentation CNN

  • Xiaofan Xiong,
  • Stephen A. Graves,
  • Brandie A. Gross,
  • John M. Buatti and
  • Reinhard R. Beichel

13 May 2024

Radiation treatment of cancers like prostate or cervix cancer requires considering nearby bone structures like vertebrae. In this work, we present and validate a novel automated method for the 3D segmentation of individual lumbar and thoracic vertebr...

  • Article
  • Open Access
3 Citations
4,861 Views
11 Pages

Temporal Bone Fractures and Related Complications in Pediatric and Adult Cranio-Facial Trauma: A Comparison of MDCT Findings in the Acute Emergency Setting

  • Romain Kohler,
  • Marcella Pucci,
  • Basile Landis,
  • Pascal Senn,
  • Pierre-Alexandre Poletti,
  • Paolo Scolozzi,
  • Seema Toso,
  • Minerva Becker and
  • Alexandra Platon

10 May 2024

Purpose: The purpose of this study was to analyze the prevalence of and complications resulting from temporal bone fractures in adult and pediatric patients evaluated for cranio-facial trauma in an emergency setting. Methods: A retrospective blinded...

  • Review
  • Open Access
25 Citations
10,030 Views
22 Pages

A Review of Artificial Intelligence in Breast Imaging

  • Dhurgham Al-Karawi,
  • Shakir Al-Zaidi,
  • Khaled Ahmad Helael,
  • Naser Obeidat,
  • Abdulmajeed Mounzer Mouhsen,
  • Tarek Ajam,
  • Bashar A. Alshalabi,
  • Mohamed Salman and
  • Mohammed H. Ahmed

With the increasing dominance of artificial intelligence (AI) techniques, the important prospects for their application have extended to various medical fields, including domains such as in vitro diagnosis, intelligent rehabilitation, medical imaging...

  • Review
  • Open Access
3 Citations
4,401 Views
12 Pages

Advancements in Neurosurgical Intraoperative Histology

  • Ali A. Mohamed,
  • Emma Sargent,
  • Cooper Williams,
  • Zev Karve,
  • Karthik Nair and
  • Brandon Lucke-Wold

Despite their relatively low incidence globally, central nervous system (CNS) tumors remain amongst the most lethal cancers, with only a few other malignancies surpassing them in 5-year mortality rates. Treatment decisions for brain tumors heavily re...

  • Article
  • Open Access
2 Citations
1,706 Views
7 Pages

Bacterial Contamination of Syringes and Fluids in Diagnostic and Interventional Neuroangiography

  • Martin Wiesmann,
  • Sophia Honecker,
  • Claudia Fleu,
  • Christiane Franz,
  • Manuela Schmiech,
  • Hani Ridwan,
  • Franziska Bürkle,
  • Omid Nikoubashman and
  • Sebastian Lemmen

(1) Background: Bacterial contamination has been shown to occur during angiographies, although data on its frequency and relevance are sparse. Our aim was to evaluate the incidence of bacterial contamination of syringes used under sterile conditions...

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Tomography - ISSN 2379-139XCreative Common CC BY license