Evidence map›Paper›PMID 39688766›Full record

ArticleJournal of neuro-oncology2025

MR perfusion characteristics of pseudoprogression in brain tumors treated with immunotherapy - a comparative study with chemo-radiation induced pseudoprogression and radiation necrosis.

Hongyan Chen, Guirong Tan, Lijuan Zhong, Yichuan Hu, Wenjing Han, Yi Huang, Qiong Liang, Denes Szekeres, Haihui Jiang, Rajnish Bharadwaj and 3 more

Abstract readComparative Study
In one paragraph

Article in Journal of neuro-oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Article
  2. Review
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  5. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Hongyan Chen *Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Guirong Tan *Advanced Neuroimaging Laboratory, The Affiliated Yuebei People's Hospital of Shantou University Medical College, Shaoguan, Guangdong Province, China.
Lijuan ZhongDepartment of Pathology, The Affiliated Yuebei People's Hospital of Shantou University Medical College, Shaoguan, Guangdong Province, China.
Yichuan HuDepartment of Radiology, The Affiliated Yuebei People's Hospital of Shantou University Medical College, Shaoguan, Guangdong Province, China.
Wenjing HanYanjing Medical College, Capital Medical University, Beijing, China.
Yi HuangInterventional Radiotherapy Room, The Affiliated Yuebei People's Hospital of Shantou University Medical College, Shaoguan, Guangdong Province, China.
Qiong LiangDepartment of Pathology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
Denes SzekeresUniversity of Rochester School of Medicine and Dentistry, Rochester, NY, USA.
Haihui JiangDepartment of Neurosurgery, Peking University Third Hospital, Peking University, Beijing, China.
Rajnish BharadwajDepartment of Pathology and Laboratory Medicine (SMD), University of Rochester Medical Center, Rochester, NY, USA.
Stephen M SmithDepartment of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA.
Henry Z WangDepartment of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA. Henry_Wang@URMC.Rochester.edu.
Xiang LiuAdvanced Neuroimaging Laboratory, The Affiliated Yuebei People's Hospital of Shantou University Medical College, Shaoguan, Guangdong Province, China. liuxiangxl72@163.com.

Funding

This work was supported by Scientists in the Bureau of Science and Technology of ShaoGuan 230329238033088
6 · The paper itself

Abstract

purposePseudoprogression is an atypical imaging pattern of response to immunotherapy in patients with brain tumors. MR perfusion studies in this field are limited. The purpose of our study is to compare the perfusion features between pseudoprogression lesions in malignant gliomas and brain metastases treated with immunotherapy (iPsP) and the pseudoprogression after chemo-radiation therapy and radiation necrosis after radiation treatment (ChR-PsP & RN).

methodsWe retrospectively reviewed 25 iPsP lesions in 16 brain tumor patients and 48 ChR-PsP & RN lesions in 35 patients. The cerebral blood volume (CBV) of MR dynamic susceptibility contrast (DSC) perfusion weighted imaging (PWI) was analyzed, and the mean and maximal values of the ratio of CBV (rCBV

resultsThe medians of rCBV

conclusionThese findings may suggest immunotherapy-induced higher perfusion in the iPsP lesions compared to ChR-PsP & RN lesions in primary and metastatic brain tumors.

Indexed as

Brain NeoplasmsChemoradiotherapyGliomaImmunotherapyMagnetic Resonance AngiographyRadiation InjuriesAdultAgedDisease ProgressionFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedNecrosisRetrospective StudiesBrain tumorImmunotherapyMR perfusion imagingPseudoprogressionTumor progression

Identifiers

PMID39688766
PMCPMC11832695

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.