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Tomography, Volume 8, Issue 6

December 2022 - 29 articles

Cover Story: The objective of this prospective pilot study was to determine if FDG-PET/MRI alters clinical response assessments among rectal cancer patients undergoing total neoadjuvant therapy (TNT) followed by nonoperative management (NOM), relative to MRI alone. In all, 7 of 14 subjects completed post-TNT restaging FDG-PET/MRIs; 5 of 7 subjects had evidence of residual disease and underwent resection; and 2 of 7 subjects had initial clinical complete response (cCR) with no evidence of disease after 12 months of NOM. FDG-PET/MRI assessments of cCR status at post-TNT restaging were 100% accurate, compared with 71% for MRI alone, as FDG-PET detected residual tumor in 2 more subjects. FDG-PET provided added value in 82% of restaging/surveillance scans. Our preliminary data indicate that FDG-PET/MRI can detect more residual disease after TNT than MRI alone. View this paper
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Articles (29)

  • Case Report
  • Open Access
1 Citations
4,101 Views
6 Pages

18 December 2022

In patients with obstructive pancreatitis due to choledocholithiasis, endoscopic retrograde cholangiopancreatography (ERCP) is the standard of care. ERCP-induced inflammation or infection of the common bile duct (i.e., cholangitis) is a rare complica...

  • Article
  • Open Access
9 Citations
2,711 Views
7 Pages

Establishment of Diagnostic Reference Levels in Cone Beam Computed Tomography Scans in the United Arab Emirates

  • Mohamed M. Abuzaid,
  • Wiam Elshami,
  • Deepa Jayachandran,
  • Noushad Korappil and
  • Huseyin O. Tekin

14 December 2022

This study aimed to address the knowledge gap in assessing the radiation doses from cone beam computed tomography (CBCT) procedures, establishing a typical value, and estimating effective and organ doses. A total of 340 patients aged 18–80 year...

  • Article
  • Open Access
13 Citations
5,793 Views
10 Pages

Automatic Exposure Control Attains Radiation Dose Modulation Matched with the Head Size in Pediatric Brain CT

  • Yusuke Inoue,
  • Hiroyasu Itoh,
  • Hiroki Miyatake,
  • Hirofumi Hata,
  • Ryosuke Sasa,
  • Nao Shiibashi and
  • Kohei Mitsui

13 December 2022

We investigated the relationship between the head size and radiation dose in pediatric brain computed tomography (CT) to evaluate the validity of automatic exposure control (AEC). Phantom experiments were performed to assess image noise with and with...

  • Article
  • Open Access
5 Citations
2,926 Views
10 Pages

Comparative Evaluation of Artifacts Originated by Four Different Post Materials Using Different CBCT Settings

  • Dilek Helvacioglu-Yigit,
  • Umut Seki,
  • Sebnem Kursun-Cakmak,
  • Husniye Demirturk Kocasarac and
  • Maharaj Singh

13 December 2022

The aim of this study was to evaluate whether cone beam computed tomography (CBCT) images in the presence of four different post materials, obtained from different kVps with varying resolutions and varying metal artifact reduction (MAR) algorithms, d...

  • Case Report
  • Open Access
3 Citations
2,199 Views
4 Pages

12 December 2022

The differentiation of splenic tissue from malignant lesions via imaging may be challenging, particularly considering aberrant or accessory lesions and diseases that are rarely encountered. Functioning splenic tissue can be identified using technetiu...

  • Article
  • Open Access
5 Citations
2,527 Views
13 Pages

Parametric MRI Detects Aristolochic Acid Induced Acute Kidney Injury

  • Yingjie Mei,
  • Guixiang Yang,
  • Yihao Guo,
  • Kaixuan Zhao,
  • Shuyu Wu,
  • Zhongbiao Xu,
  • Shan Zhou,
  • Chenggong Yan,
  • Erdmann Seeliger and
  • Thoralf Niendorf
  • + 2 authors

10 December 2022

Exposure to aristolochic acid (AA) is of increased concern due to carcinogenic and nephrotoxic effects, and incidence of aristolochic acid nephropathy (AAN) is increasing. This study characterizes renal alterations during the acute phase of AAN using...

  • Article
  • Open Access
4 Citations
4,566 Views
9 Pages

Diagnostic Accuracy and Reliability of Noncontrast Computed Tomography Markers for Acute Hematoma Expansion among Radiologists

  • Hawra Almubarak,
  • Sarah Elsayed,
  • Federico Mazzacane,
  • Frieder Schlunk,
  • Haoyin Cao,
  • Ly Huong Vu,
  • Estelle Vogt,
  • Andrea Dell Orco,
  • Dmitriy Desser and
  • Maik F. H. Böhmer
  • + 6 authors

9 December 2022

Background: Noncontrast Computed Tomography (NCCT) features are promising markers for acute hematoma expansion (HE) in patients with intracerebral hemorrhage (ICH). It remains unclear whether accurate identification of these markers is also reliable...

  • Review
  • Open Access
8 Citations
6,571 Views
19 Pages

A Review of Computer-Aided Breast Cancer Diagnosis Using Sequential Mammograms

  • Kosmia Loizidou,
  • Galateia Skouroumouni,
  • Christos Nikolaou and
  • Costas Pitris

6 December 2022

Radiologists assess the results of mammography, the key screening tool for the detection of breast cancer, to determine the presence of malignancy. They, routinely, compare recent and prior mammographic views to identify changes between the screening...

  • Article
  • Open Access
9 Citations
3,131 Views
10 Pages

Evaluation of Anterior and Posterior Corneal Higher Order Aberrations for the Detection of Keratoconus and Suspect Keratoconus

  • Abdelrahman Salman,
  • Obeda Kailani,
  • John Marshall,
  • Marwan Ghabra,
  • Ashraf Armia Balamoun,
  • Taym R. Darwish,
  • Abdul Aziz Badla and
  • Hala Alhaji

2 December 2022

Aim: To investigate the application of anterior and posterior corneal higher-order aberrations (HOAs) in detecting keratoconus (KC) and suspect keratoconus (SKC). Method: A retrospective, case-control study evaluating non-ectatic (normal) eyes, SKC e...

  • Article
  • Open Access
1 Citations
3,034 Views
10 Pages

28 November 2022

Background: The purpose of this study was to investigate and compare the image quality of low-concentration-iodine (240 mgI/mL) contrast media (CM) and high-concentration-iodine (320 mgI/mL) CM according to the radiation dose. Methods: A total of 366...

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Tomography - ISSN 2379-139X