Evidence map›Paper›PMID 40328972›Full record

ArticleAesthetic plastic surgery2025

Advancing Preoperative Planning in Perforator Flap Surgery with Photon-Counting Computed Tomography Angiography: Less Challenges with More Precision.

Yining Lan, Runzhu Liu, Luqi Guo, Chao Zhang, Hailin Zhang, Jiuzuo Huang, Nanze Yu, Feng Feng, Fengzhou Du, Wang Yun and 1 more

Abstract read
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In one paragraph

Article in Aesthetic plastic surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–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

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Review
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

11 authors.

Yining Lan *Department of Plastic and Reconstructive Surgery, Chinese Academy of Medical Science Peking Union Medical College Hospital, No. 41 Damucang Hutong, Xicheng District, Beijing, China.
Runzhu Liu *Department of Plastic and Reconstructive Surgery, Chinese Academy of Medical Science Peking Union Medical College Hospital, No. 41 Damucang Hutong, Xicheng District, Beijing, China.
Luqi GuoDepartment of Plastic and Reconstructive Surgery, Chinese Academy of Medical Science Peking Union Medical College Hospital, No. 41 Damucang Hutong, Xicheng District, Beijing, China.
Chao ZhangDepartment of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science Peking Union Medical College Hospital, Beijing, China.
Hailin ZhangDepartment of Plastic and Reconstructive Surgery, Chinese Academy of Medical Science Peking Union Medical College Hospital, No. 41 Damucang Hutong, Xicheng District, Beijing, China.
Jiuzuo HuangDepartment of Plastic and Reconstructive Surgery, Chinese Academy of Medical Science Peking Union Medical College Hospital, No. 41 Damucang Hutong, Xicheng District, Beijing, China.
Nanze YuDepartment of Plastic and Reconstructive Surgery, Chinese Academy of Medical Science Peking Union Medical College Hospital, No. 41 Damucang Hutong, Xicheng District, Beijing, China.
Feng FengDepartment of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science Peking Union Medical College Hospital, Beijing, China.
Fengzhou DuDepartment of Plastic and Reconstructive Surgery, Chinese Academy of Medical Science Peking Union Medical College Hospital, No. 41 Damucang Hutong, Xicheng District, Beijing, China. fengzhoudu@163.com.
Wang YunDepartment of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science Peking Union Medical College Hospital, Beijing, China. wangyun8637@163.com.
Xiao LongDepartment of Plastic and Reconstructive Surgery, Chinese Academy of Medical Science Peking Union Medical College Hospital, No. 41 Damucang Hutong, Xicheng District, Beijing, China. pumclongxiao@126.com.ORCID 0000-0003-0136-2508

Funding

China Medical Board 23-518National High-Level Hospital Clinical Research Funding 2022-PUMCH-A-209National High-Level Hospital Clinical Research Funding 2022-PUMCH-B-068
6 · The paper itself

Abstract

backgroundPerforator flaps are crucial in plastic surgery, providing versatility in complex reconstructions. However, anatomical variations pose challenges in flap dissection and anastomosis. Conventional computed tomography angiography (CTA) is standard for preoperative planning but has limitations in evaluating small arteries. A novel technique, photon-counting computed tomography (PCCT), offers enhanced spatial resolution with lower radiation exposure.

methodsFrom December 2023 to September 2024, a pilot study was conducted at Peking Union Medical College Hospital in Beijing. Seven patients undergoing perforator flap reconstructions received preoperative PCCT angiography (experimental group). Five patients underwent conventional CTA scans (control group 1), and another five had flap reconstructions guided by traditional imaging methods (control group 2). Three flap types were analyzed: deep inferior epigastric perforator flap, anterolateral thigh perforator flap, and superficial circumflex iliac artery perforator flap. Imaging efficacy, radiation dose, and surgical outcomes were compared.

resultsPCCT identified significantly more perforators (14.5 ± 2.1 vs. 10.2 ± 1.8, p < 0.05) and smaller branch diameters (0.8 ± 0.1 mm vs. 1.2 ± 0.2 mm, p < 0.05) compared to conventional CTA. The radiation dose was lower with PCCT (6.3 ± 1.1 mSv vs. 8.1 ± 0.9 mSv, p < 0.05). The experimental group experienced shorter operation and flap harvesting times, with fewer complications than control group 2.

conclusionPCCT angiography enhances preoperative assessment of perforator vessels by detecting more and smaller perforators while reducing radiation exposure, thereby improving surgical planning and outcomes in perforator flap reconstructions. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Indexed as

Computed Tomography AngiographyPerforator FlapPlastic Surgery ProceduresPreoperative CareAdultEpigastric ArteriesFemaleHumansMaleMiddle AgedPilot ProjectsComputed tomography angiographyMedical imagingPerforator flapPhoton-counting computed tomography (PCCT)Plastic surgery

Identifiers

PMID40328972

What OpenQuestion holds

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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.